Is Anybody Out There? (Alien Life Documentary) | Spark

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on August 15 1977<font color="#CCCCCC"> a strange signal</font><font color="#E5E5E5"> from</font> the<font color="#E5E5E5"> constellation Sagittarius was</font> received by<font color="#E5E5E5"> the Big Ear radio telescope</font> the signal known<font color="#CCCCCC"> as the lost signal</font> <font color="#E5E5E5">reached an intensity up to 30 times</font> higher than the usual signals<font color="#E5E5E5"> and had a</font> duration of 72 seconds<font color="#CCCCCC"> it's name comes</font> <font color="#CCCCCC">from the note</font><font color="#E5E5E5"> written at</font><font color="#CCCCCC"> that moment by</font> <font color="#E5E5E5">the person who discovered it</font><font color="#CCCCCC"> Jerry</font> <font color="#CCCCCC">our Ely</font><font color="#E5E5E5"> collaborator and SETI project a</font> project<font color="#CCCCCC"> for the search for</font> <font color="#E5E5E5">extraterrestrial intelligence</font><font color="#CCCCCC"> founded by</font> NASA in 1960<font color="#E5E5E5"> the</font><font color="#CCCCCC"> WHA signal is among all</font> the<font color="#CCCCCC"> strange signals received up to now</font> the one<font color="#E5E5E5"> that has the</font><font color="#CCCCCC"> greatest likelihood</font> of having<font color="#E5E5E5"> been emitted by intelligent</font> extraterrestrial beings despite its<font color="#CCCCCC"> origin still being</font> <font color="#CCCCCC">uncertainty to this day in a vast</font> <font color="#CCCCCC">universe</font><font color="#E5E5E5"> 40 billion years old and</font> containing<font color="#E5E5E5"> 500 billion galaxies science</font> is convinced that<font color="#E5E5E5"> there must exist or</font> must have existed<font color="#CCCCCC"> extraterrestrial</font> intelligence in this vastness<font color="#CCCCCC"> it would</font> seem that there<font color="#E5E5E5"> should</font><font color="#CCCCCC"> be fullness of</font> life out there<font color="#E5E5E5"> with this conviction</font> <font color="#E5E5E5">human beings have searched for and still</font> search for<font color="#CCCCCC"> it</font><font color="#E5E5E5"> incessantly</font> state-of-the-art<font color="#E5E5E5"> radio telescopes</font> <font color="#CCCCCC">tracked the sky day and</font><font color="#E5E5E5"> night year after</font> <font color="#CCCCCC">year in search of any</font><font color="#E5E5E5"> sign of</font> <font color="#E5E5E5">extraterrestrial intelligent life</font> [Music] nevertheless in 2009 everything<font color="#E5E5E5"> changing</font> that year<font color="#E5E5E5"> NASA launched the Kepler</font> satellite into space thanks to it<font color="#E5E5E5"> we</font><font color="#CCCCCC"> have found thousands of</font> <font color="#E5E5E5">earth-like planets where conditions for</font> life might be<font color="#E5E5E5"> possible this is meant</font> undoubtedly<font color="#E5E5E5"> the total revolution in the</font> search for<font color="#E5E5E5"> extraterrestrial intelligent</font> life [Music] given the important advances in astrophysics<font color="#E5E5E5"> some scientists believe</font> that<font color="#E5E5E5"> there</font><font color="#CCCCCC"> is a chance</font><font color="#E5E5E5"> of finding</font> extraterrestrial<font color="#E5E5E5"> intelligence in the</font> next decades seth shostack astronomer and director of SETI search for extraterrestrial intelligence <font color="#CCCCCC">declared before the House Science</font> <font color="#E5E5E5">Committee of the</font><font color="#CCCCCC"> American Congress that</font> <font color="#E5E5E5">in a couple of decades</font><font color="#CCCCCC"> we will have</font> found evidence<font color="#E5E5E5"> of its existence</font><font color="#CCCCCC"> the</font> chances of finding it I think are good and if that happens it will<font color="#CCCCCC"> happen in</font> <font color="#E5E5E5">the next 20 years depending</font><font color="#CCCCCC"> on</font><font color="#E5E5E5"> the</font> financing<font color="#E5E5E5"> a first contact could be</font> <font color="#CCCCCC">closed the question is do we really want</font> <font color="#E5E5E5">them</font><font color="#CCCCCC"> to find</font><font color="#E5E5E5"> us what will these forms of</font> life be like what will their aims be is anybody out <font color="#E5E5E5">there</font> [Music] given the millions<font color="#E5E5E5"> of</font><font color="#CCCCCC"> billions of</font> earth-like planets<font color="#E5E5E5"> life elsewhere in the</font> <font color="#CCCCCC">universe</font> without a doubt<font color="#E5E5E5"> does exist in the</font> vastness of<font color="#CCCCCC"> the universe we are</font><font color="#E5E5E5"> not</font> alone<font color="#E5E5E5"> Albert Einstein 4.5 billion years</font> ago<font color="#CCCCCC"> in the vastness of</font><font color="#E5E5E5"> the universe the</font> <font color="#CCCCCC">earth</font><font color="#E5E5E5"> our home was formed from</font><font color="#CCCCCC"> the birth</font> of<font color="#E5E5E5"> the universe</font><font color="#CCCCCC"> it took 14 billion years</font> <font color="#E5E5E5">for human beings to arise</font><font color="#CCCCCC"> just six</font> million<font color="#E5E5E5"> years ago to give us an idea</font><font color="#CCCCCC"> of</font> <font color="#E5E5E5">the</font><font color="#CCCCCC"> time which has passed until our</font> <font color="#E5E5E5">first steps</font><font color="#CCCCCC"> Carl</font><font color="#E5E5E5"> Sagan made a time</font> comparison in which if<font color="#E5E5E5"> the age of the</font> <font color="#CCCCCC">universe was a year the Big Bang would</font> <font color="#CCCCCC">have occurred on January</font><font color="#E5E5E5"> 1st</font> on September 8th<font color="#CCCCCC"> the Sun would have</font> formed on September 11th<font color="#E5E5E5"> the earth would</font> <font color="#E5E5E5">have formed and we would have been born</font> <font color="#E5E5E5">the last</font><font color="#CCCCCC"> day of the year December 31st</font> at 11:39 how many things must have happened in other<font color="#E5E5E5"> places</font><font color="#CCCCCC"> during the same time</font> today<font color="#E5E5E5"> when we take a look</font><font color="#CCCCCC"> at what we</font> know about the universe<font color="#CCCCCC"> and what we know</font> about the origins of<font color="#E5E5E5"> life</font><font color="#CCCCCC"> on</font><font color="#E5E5E5"> this planet</font> it leads us to<font color="#CCCCCC"> think</font><font color="#E5E5E5"> that</font><font color="#CCCCCC"> the same</font> things that happened<font color="#E5E5E5"> here might well</font> have happened<font color="#CCCCCC"> elsewhere and so life</font> beyond this planet<font color="#CCCCCC"> is quite plausible in</font> terms of a science<font color="#E5E5E5"> that we know today we</font> see the organic<font color="#CCCCCC"> building blocks</font><font color="#E5E5E5"> that</font><font color="#CCCCCC"> are</font> essential to<font color="#CCCCCC"> life on Earth and so the</font> raw stuff that's necessary<font color="#CCCCCC"> for life is</font> out there<font color="#CCCCCC"> the places that life could</font> live is out there<font color="#E5E5E5"> the big question is do</font> they come together and form a second <font color="#E5E5E5">Genesis we take up a tiny place in the</font> <font color="#E5E5E5">immensity of the universe</font> the<font color="#CCCCCC"> Milky Way the galaxy we live in</font> might have<font color="#E5E5E5"> around 100 billion stars</font> <font color="#E5E5E5">among them</font><font color="#CCCCCC"> our Sun in total</font><font color="#E5E5E5"> it measures</font> around<font color="#CCCCCC"> 100,000 light-years in diameter</font> <font color="#E5E5E5">maybe there are a million maybe there</font> are a billion maybe there are a hundred billion planets in<font color="#E5E5E5"> the Milky Way</font><font color="#CCCCCC"> galaxy</font> <font color="#CCCCCC">that could support life the kind of</font> planets<font color="#E5E5E5"> that earthly life could survive</font> <font color="#CCCCCC">on how many of them have cooked up their</font> own life here<font color="#E5E5E5"> from one end of the Milky</font> Way we<font color="#E5E5E5"> an intelligent civilization wonder if</font> it's<font color="#E5E5E5"> possible that we are alone in all</font> of<font color="#E5E5E5"> this vastness there's just a lot of</font> real estate<font color="#CCCCCC"> a lot of room for life in</font> space we've now<font color="#E5E5E5"> learned that planets are</font> as common<font color="#CCCCCC"> as cheap hotels</font><font color="#E5E5E5"> they're all</font> over the<font color="#E5E5E5"> place</font><font color="#CCCCCC"> there are a trillion</font> that's a million million<font color="#CCCCCC"> planets</font><font color="#E5E5E5"> just in</font> our own<font color="#CCCCCC"> galaxy if there is no life on</font> any of them then<font color="#E5E5E5"> earth is a miracle</font><font color="#CCCCCC"> a</font> miracle<font color="#CCCCCC"> and I'll tell you this for</font> <font color="#CCCCCC">scientists believing in miracles is</font> usually<font color="#E5E5E5"> not a</font><font color="#CCCCCC"> good strategy</font><font color="#E5E5E5"> when we</font> <font color="#E5E5E5">think</font><font color="#CCCCCC"> about how vast the universe</font><font color="#E5E5E5"> is it</font> would<font color="#E5E5E5"> be incredible</font><font color="#CCCCCC"> if</font><font color="#E5E5E5"> there's no other</font> <font color="#E5E5E5">life out</font><font color="#CCCCCC"> there there are hundreds of</font> billions<font color="#CCCCCC"> of</font><font color="#E5E5E5"> stars in our galaxy alone</font> and there are<font color="#CCCCCC"> billions of galaxies in</font> <font color="#CCCCCC">the universe</font> if life appears on<font color="#E5E5E5"> only a</font><font color="#CCCCCC"> miniscule</font> fraction of those<font color="#CCCCCC"> planets then life is</font> prevalent throughout<font color="#CCCCCC"> the universe</font><font color="#E5E5E5"> that's</font> why human beings<font color="#CCCCCC"> and</font><font color="#E5E5E5"> their</font><font color="#CCCCCC"> enthusiasm</font> <font color="#E5E5E5">for knowledge and exploration have</font> started the search for<font color="#CCCCCC"> intelligent life</font> with the hope of<font color="#E5E5E5"> sooner or later</font><font color="#CCCCCC"> finding</font> <font color="#CCCCCC">it</font> <font color="#E5E5E5">are being found by it</font> [Music] Alton is<font color="#E5E5E5"> Podesta hi Rita</font><font color="#CCCCCC"> Aaron echoes</font> <font color="#CCCCCC">Prospero's</font><font color="#E5E5E5"> Eloisa manfully</font><font color="#CCCCCC"> posse</font> felicidade<font color="#E5E5E5"> todos</font><font color="#CCCCCC"> de hecho nada</font> <font color="#CCCCCC">hasta carcinogen Yeah right oh</font><font color="#E5E5E5"> yes -</font><font color="#CCCCCC"> a</font> <font color="#CCCCCC">man hollering old Caldecott Naveen</font> <font color="#E5E5E5">evasion accommodation Aaron</font><font color="#CCCCCC"> aunty</font> fortunate<font color="#CCCCCC"> receiver was na x ma no karate</font> <font color="#CCCCCC">ramana a</font><font color="#E5E5E5"> neo Kozma was Narayana</font> Harvick<font color="#E5E5E5"> of Ananda awesome</font><font color="#CCCCCC"> mission way</font> <font color="#E5E5E5">what person they show more</font><font color="#CCCCCC"> closer</font><font color="#E5E5E5"> this</font> search can<font color="#CCCCCC"> be done in two ways</font><font color="#E5E5E5"> tracking</font> signals that may come from<font color="#CCCCCC"> any</font> extraterrestrial civilization or sending our own messages into space<font color="#E5E5E5"> which may be</font> received by one<font color="#CCCCCC"> of those civilizations</font> <font color="#E5E5E5">someday active SETI also sometimes</font> called Betty<font color="#E5E5E5"> messaging extraterrestrial</font> intelligence<font color="#E5E5E5"> reverses the roles instead</font> of passively listening for a signal from <font color="#E5E5E5">another civilization we send intentional</font> powerful signals to<font color="#CCCCCC"> nearby stars in the</font> hope of getting a reply back [Music] with<font color="#E5E5E5"> this goal</font><font color="#CCCCCC"> in</font><font color="#E5E5E5"> 1977 the most</font> elaborate<font color="#E5E5E5"> and comprehensive message to</font> date<font color="#E5E5E5"> the sounds of the earth was</font> launched into<font color="#CCCCCC"> space a</font><font color="#E5E5E5"> moving</font> introductory message<font color="#E5E5E5"> including</font> everything<font color="#E5E5E5"> that human beings considered</font> that<font color="#CCCCCC"> our and extraterrestrial</font> civilization should know about<font color="#CCCCCC"> our</font> <font color="#E5E5E5">species it was included on a golden</font> record<font color="#CCCCCC"> on each of the Voyager</font> interstellar space probes launched that same year from Cape Canaveral<font color="#E5E5E5"> as a</font> golden record<font color="#E5E5E5"> on one side</font><font color="#CCCCCC"> there were</font> encoded music from<font color="#E5E5E5"> around the world</font> greetings<font color="#E5E5E5"> and 55 languages a 12-minute</font> <font color="#CCCCCC">solemn montage</font><font color="#E5E5E5"> of the evolution of life</font> on<font color="#CCCCCC"> Earth</font><font color="#E5E5E5"> and on the other side there</font> were<font color="#E5E5E5"> pictures over a hundred pictures</font> <font color="#E5E5E5">describing some basic</font><font color="#CCCCCC"> mathematical</font> principles in the diversity of<font color="#E5E5E5"> life</font><font color="#CCCCCC"> and</font> culture<font color="#E5E5E5"> on earth the content of the</font> recording was carefully chosen<font color="#CCCCCC"> by NASA</font> <font color="#E5E5E5">and a committee chaired by astronomer</font> and author<font color="#E5E5E5"> Carl Sagan</font> the audio section has a salutation<font color="#E5E5E5"> in</font> English from<font color="#CCCCCC"> the UN</font><font color="#E5E5E5"> general secretary</font> <font color="#E5E5E5">and short messages in 55 languages</font> welcoming and wishing peace to all forms of life<font color="#E5E5E5"> we thank you he thought is</font> <font color="#E5E5E5">actually really</font> but that one was<font color="#E5E5E5"> not the only message</font> sent there have been<font color="#CCCCCC"> a few</font><font color="#E5E5E5"> symbolic</font> transmissions<font color="#E5E5E5"> to other</font><font color="#CCCCCC"> worlds the most</font> famous transmission to another civilization<font color="#CCCCCC"> happened in</font><font color="#E5E5E5"> 1974 from the</font> world's<font color="#E5E5E5"> most powerful radio telescope in</font> Arecibo Puerto Rico<font color="#E5E5E5"> it was a very simple</font> <font color="#CCCCCC">message it took</font><font color="#E5E5E5"> three minutes to</font><font color="#CCCCCC"> send</font> and it provides a mathematical<font color="#CCCCCC"> and</font> scientific overview of life on<font color="#E5E5E5"> Earth</font> nevertheless<font color="#E5E5E5"> the search for</font> extraterrestrial<font color="#E5E5E5"> life is not founded</font> just<font color="#E5E5E5"> on the sending of messages in the</font> hope of a response<font color="#CCCCCC"> someday</font><font color="#E5E5E5"> but on the</font> development<font color="#CCCCCC"> of a search</font><font color="#E5E5E5"> for signals that</font> may indicate<font color="#E5E5E5"> the</font><font color="#CCCCCC"> existence of that</font> <font color="#E5E5E5">intelligent life</font> SETI<font color="#E5E5E5"> as a scientific exploration</font> actually got its start<font color="#E5E5E5"> within NASA in</font> the life sciences portion of NASA<font color="#E5E5E5"> people</font> were<font color="#E5E5E5"> interested in the</font><font color="#CCCCCC"> question</font><font color="#E5E5E5"> of life</font> beyond the earth<font color="#CCCCCC"> and</font><font color="#E5E5E5"> this program</font> <font color="#E5E5E5">developed within</font><font color="#CCCCCC"> NASA</font><font color="#E5E5E5"> it launched</font> actually<font color="#CCCCCC"> in 1992 it was called the high</font> resolution microwave survey<font color="#E5E5E5"> in 1993</font> <font color="#E5E5E5">senator</font><font color="#CCCCCC"> bryan from</font><font color="#E5E5E5"> nevada terminated</font> nasa's funding for SETI<font color="#CCCCCC"> and he</font> <font color="#CCCCCC">terminated with a vengeance</font> so that<font color="#E5E5E5"> NASA was unable to recover and</font> come back the next<font color="#E5E5E5"> year with another</font> <font color="#CCCCCC">City program</font><font color="#E5E5E5"> so at that point because we</font> had already formed a<font color="#CCCCCC"> non-profit</font> <font color="#CCCCCC">Institute called the SETI Institute to</font> <font color="#CCCCCC">help NASA stretch its funds as it did</font> this SETI work<font color="#E5E5E5"> in 1993 we said okay</font> <font color="#E5E5E5">we've got a non-profit we're just</font><font color="#CCCCCC"> gonna</font> <font color="#E5E5E5">go</font><font color="#CCCCCC"> out and</font><font color="#E5E5E5"> raise</font><font color="#CCCCCC"> money to</font><font color="#E5E5E5"> do this</font> privately<font color="#CCCCCC"> the SETI Institute</font><font color="#E5E5E5"> is</font><font color="#CCCCCC"> nowadays</font> the main world institution devoted to the search for extraterrestrial <font color="#CCCCCC">intelligence</font> it's a<font color="#E5E5E5"> project called SETI the search</font> for extraterrestrial<font color="#E5E5E5"> intelligence</font> this search is<font color="#CCCCCC"> based on the</font><font color="#E5E5E5"> use of radio</font> <font color="#E5E5E5">telescopes radio telescopes receive</font> radio waves as we can't go to<font color="#CCCCCC"> space</font> aboard spacecrafts<font color="#E5E5E5"> to find that</font> intelligent life<font color="#CCCCCC"> what we look</font><font color="#E5E5E5"> for our</font> <font color="#CCCCCC">radio</font><font color="#E5E5E5"> signals what we're looking for</font><font color="#CCCCCC"> is</font> a signal<font color="#E5E5E5"> that's at one spot on the</font><font color="#CCCCCC"> radio</font> dial just like when you're<font color="#E5E5E5"> listening to</font><font color="#CCCCCC"> the</font> the radio in<font color="#CCCCCC"> your car you know you</font><font color="#E5E5E5"> tune</font> across the dial you<font color="#E5E5E5"> hear static</font> everywhere<font color="#E5E5E5"> and then at one spot you're</font> near and there's a<font color="#E5E5E5"> station okay that's</font> the signal that's produced by<font color="#CCCCCC"> a</font> transmitter<font color="#CCCCCC"> somewhere</font><font color="#E5E5E5"> it's not natural</font> static<font color="#E5E5E5"> it's not like a quasar</font><font color="#CCCCCC"> a pulsar</font> <font color="#E5E5E5">galaxies or hot gas coal gas all those</font> things in space<font color="#E5E5E5"> make radio noise but</font> it's all<font color="#E5E5E5"> over the dial so we look for</font> <font color="#CCCCCC">signals that are at one</font><font color="#E5E5E5"> spot on</font><font color="#CCCCCC"> the dial</font> <font color="#CCCCCC">and of course the source of the signal</font> has to<font color="#CCCCCC"> be up in</font><font color="#E5E5E5"> the sky</font><font color="#CCCCCC"> those are the</font> kinds of<font color="#CCCCCC"> criteria we use to know</font><font color="#E5E5E5"> that</font> <font color="#E5E5E5">even if we don't</font><font color="#CCCCCC"> know what it means we</font> at least know they're there they're <font color="#CCCCCC">there on</font><font color="#E5E5E5"> the</font><font color="#CCCCCC"> air</font> one of the biggest SETI projects started in<font color="#E5E5E5"> 2007 is the</font><font color="#CCCCCC"> Fallon telescope array</font> <font color="#E5E5E5">which seeks to install 350 antennas to</font> receive possible messages from outer space we designed this we went<font color="#E5E5E5"> to Paul Allen</font> <font color="#E5E5E5">and asked him to fund it and he was</font> generous<font color="#E5E5E5"> to fund the first phase of</font> <font color="#CCCCCC">construction of</font><font color="#E5E5E5"> what we now call the</font> Allen telescope<font color="#E5E5E5"> array it's in Northern</font> <font color="#CCCCCC">California near</font><font color="#E5E5E5"> Mount lassen the Allen</font> <font color="#CCCCCC">telescope array has 42 telescopes</font> <font color="#E5E5E5">someday we hope to grow it to 350 the</font> Allen project will become<font color="#CCCCCC"> the most</font> <font color="#CCCCCC">powerful instrument</font><font color="#E5E5E5"> in the search for</font> signals<font color="#CCCCCC"> from</font><font color="#E5E5E5"> other civilizations in our</font> galaxy<font color="#E5E5E5"> since it was launched</font><font color="#CCCCCC"> after just</font> a<font color="#CCCCCC"> few months in operation</font><font color="#E5E5E5"> it has been</font> <font color="#CCCCCC">able to analyze the same amount</font><font color="#E5E5E5"> of area</font> <font color="#E5E5E5">of the universe as in the last 45</font><font color="#CCCCCC"> years</font> of<font color="#E5E5E5"> SETI's existence another of SETI's</font> most famous innovative projects is SETI at home it was started in 1999<font color="#E5E5E5"> by</font> astronomers at the<font color="#E5E5E5"> University</font><font color="#CCCCCC"> of</font> California in Berkeley<font color="#CCCCCC"> and it uses</font><font color="#E5E5E5"> an</font> army of millions of amateur<font color="#E5E5E5"> Internet</font> users from<font color="#E5E5E5"> home anyone can be part of</font> <font color="#E5E5E5">this enthralling pursuit the screensaver</font> <font color="#E5E5E5">analyzes some of the data</font><font color="#CCCCCC"> that</font><font color="#E5E5E5"> comes</font> from<font color="#E5E5E5"> the Arecibo radio telescope in</font> Puerto<font color="#E5E5E5"> Rico up to now more than</font><font color="#CCCCCC"> five</font> million people<font color="#E5E5E5"> from all over the world</font> <font color="#E5E5E5">have participated and are processing all</font> of<font color="#E5E5E5"> the info captured by the Arecibo</font> radio telescope the SETI at home project has<font color="#E5E5E5"> grown so</font><font color="#CCCCCC"> quickly that</font><font color="#E5E5E5"> it is the</font> <font color="#E5E5E5">biggest ever of its kind both projects</font> <font color="#E5E5E5">Allen telescope array and SETI at home</font> <font color="#E5E5E5">have been a huge advance in the search</font> for intelligent<font color="#E5E5E5"> life giving hope for</font> discoveries<font color="#E5E5E5"> in the near future</font> but undoubtedly<font color="#CCCCCC"> what has radically</font> revolutionized<font color="#E5E5E5"> and pushed the search for</font> extraterrestrial intelligent life is the <font color="#E5E5E5">Kepler mission which</font><font color="#CCCCCC"> is focused on the</font> <font color="#E5E5E5">search for potentially inhabitable</font> planets it was launched by NASA<font color="#E5E5E5"> on March</font> 6th 2009 and<font color="#CCCCCC"> orbited the</font><font color="#E5E5E5"> Sun looking for</font> extrasolar earth-like planets where life may be possible Kepler which is a <font color="#E5E5E5">space-based telescope that was launched</font> <font color="#E5E5E5">about five years ago</font><font color="#CCCCCC"> is on the hunt for</font> planets<font color="#CCCCCC"> Kepler has found literally</font> thousands of planets<font color="#CCCCCC"> or planetary</font> candidates it's it's a planet<font color="#E5E5E5"> finding</font> machine<font color="#E5E5E5"> the Kepler spacecraft has</font><font color="#CCCCCC"> been a</font> <font color="#CCCCCC">game-changer in the search for other</font> intelligence Kepler now can tell us which stars have planets around<font color="#E5E5E5"> them and</font> which<font color="#CCCCCC"> of</font><font color="#E5E5E5"> those stars are earth-like that</font> means we now know where we can point<font color="#E5E5E5"> our</font> telescopes<font color="#E5E5E5"> to</font><font color="#CCCCCC"> look for a twin of Earth</font> in 2011 for the<font color="#E5E5E5"> first time ever</font> Kepler provided scientists with a census <font color="#CCCCCC">of the Milky Way for</font><font color="#E5E5E5"> the first time ever</font> we can calculate<font color="#E5E5E5"> how</font><font color="#CCCCCC"> many stars in the</font> <font color="#E5E5E5">Milky</font><font color="#CCCCCC"> Way</font><font color="#E5E5E5"> could have a planet like ours</font> around a<font color="#E5E5E5"> billion so one of the big</font> triumphs of astronomy in<font color="#CCCCCC"> the last two</font> decades<font color="#E5E5E5"> is to show the</font><font color="#CCCCCC"> majority of stars</font> have planets<font color="#E5E5E5"> planets all over the place</font> <font color="#CCCCCC">there are more planets</font><font color="#E5E5E5"> than stars</font> <font color="#E5E5E5">according</font><font color="#CCCCCC"> to the data in the near future</font> millions of inhabitable planets may be found<font color="#CCCCCC"> just in our</font><font color="#E5E5E5"> galaxy</font><font color="#CCCCCC"> what Kepler is</font> shown is that<font color="#E5E5E5"> maybe one in five stars</font> <font color="#E5E5E5">has a planet which could have liquid</font> oceans<font color="#E5E5E5"> a bit of an atmosphere in other</font> words the<font color="#E5E5E5"> kind</font><font color="#CCCCCC"> of place where</font><font color="#E5E5E5"> you might</font> <font color="#CCCCCC">want to</font><font color="#E5E5E5"> build you</font><font color="#CCCCCC"> know</font><font color="#E5E5E5"> build yourself a</font> house right so one in five means that just in our<font color="#CCCCCC"> galaxy</font><font color="#E5E5E5"> there are tens of</font> thousands of millions<font color="#CCCCCC"> of cousins</font><font color="#E5E5E5"> of the</font> <font color="#E5E5E5">earth that's a lot of real estate this</font> data<font color="#E5E5E5"> is crucial to answering the</font> question of whether<font color="#CCCCCC"> we are alone in the</font> <font color="#CCCCCC">universe</font><font color="#E5E5E5"> and helping us</font><font color="#CCCCCC"> to resolve some</font> unknowns<font color="#CCCCCC"> of</font><font color="#E5E5E5"> one</font><font color="#CCCCCC"> of the most famous</font> equations in astrophysics<font color="#CCCCCC"> the Drake</font> Equation<font color="#CCCCCC"> which is now of major interest</font> <font color="#E5E5E5">the Drake Equation is a way to grapple</font> with all of the<font color="#E5E5E5"> issues most central</font><font color="#CCCCCC"> to</font> determining<font color="#CCCCCC"> how many</font><font color="#E5E5E5"> civilizations are</font> there out there<font color="#CCCCCC"> in our galaxy</font><font color="#E5E5E5"> trying to</font> make contact<font color="#E5E5E5"> the Drake Equation looks at</font> seven<font color="#CCCCCC"> independent factors and tries to</font> put a number<font color="#CCCCCC"> on each of them so you</font> multiply<font color="#CCCCCC"> all those</font><font color="#E5E5E5"> up and you come</font><font color="#CCCCCC"> up</font> <font color="#CCCCCC">with a number</font><font color="#E5E5E5"> that</font><font color="#CCCCCC"> we call</font><font color="#E5E5E5"> in the number</font> of<font color="#CCCCCC"> potentially communicative</font> civilizations in the Milky Way<font color="#CCCCCC"> our star</font> is the rate at which stars<font color="#E5E5E5"> have been</font> born in the<font color="#CCCCCC"> Milky Way galaxy</font><font color="#E5E5E5"> over the</font> last few billion<font color="#CCCCCC"> years</font><font color="#E5E5E5"> so it's a</font><font color="#CCCCCC"> number</font> that<font color="#E5E5E5"> is stars per year our galaxy is</font><font color="#CCCCCC"> ten</font> <font color="#E5E5E5">billion years</font><font color="#CCCCCC"> old and</font><font color="#E5E5E5"> early in its</font> history<font color="#CCCCCC"> stars formed at a different rate</font> <font color="#E5E5E5">all of the F factors are fractions each</font> one<font color="#E5E5E5"> must be less than</font><font color="#CCCCCC"> or equal</font><font color="#E5E5E5"> to</font><font color="#CCCCCC"> one F</font> <font color="#E5E5E5">sub P is the fraction</font><font color="#CCCCCC"> of stars that have</font> planets<font color="#CCCCCC"> n sub E is the average number of</font> habitable<font color="#E5E5E5"> planets in any planetary</font> <font color="#E5E5E5">system</font><font color="#CCCCCC"> F sub</font><font color="#E5E5E5"> L is the fresh</font> <font color="#E5E5E5">planets on which life actually begins</font> and<font color="#E5E5E5"> f sub</font><font color="#CCCCCC"> I is the</font><font color="#E5E5E5"> fraction of all those</font> <font color="#CCCCCC">life-forms</font><font color="#E5E5E5"> that develop intelligence</font><font color="#CCCCCC"> F</font> sub C is the fraction of intelligent <font color="#CCCCCC">life</font><font color="#E5E5E5"> that develops a civilization that</font> <font color="#E5E5E5">decides to</font><font color="#CCCCCC"> use some sort</font><font color="#E5E5E5"> of transmitting</font> technology<font color="#E5E5E5"> and finally L the longevity</font> factor on average how many<font color="#E5E5E5"> years do</font> those transmitters<font color="#E5E5E5"> continue to operate</font> that<font color="#E5E5E5"> is perhaps the most elusive term of</font> the Drake Equation<font color="#CCCCCC"> as we look into our</font> <font color="#CCCCCC">own future</font><font color="#E5E5E5"> we wonder will we survive as</font> a technologically adolescent civilization will we last long<font color="#E5E5E5"> enough</font><font color="#CCCCCC"> to</font> make contact<font color="#E5E5E5"> that is the big unknown the</font> Drake Equation includes a series<font color="#CCCCCC"> of</font> terms whose value we can't know<font color="#CCCCCC"> exactly</font> it's just<font color="#CCCCCC"> a fantastic</font><font color="#E5E5E5"> framework with</font> <font color="#CCCCCC">which we can organize our ignorance</font> <font color="#E5E5E5">because you can't solve the equation</font> there are<font color="#E5E5E5"> no right</font><font color="#CCCCCC"> answers to that</font> equation<font color="#CCCCCC"> not yet as we shift into the</font> more<font color="#CCCCCC"> biological and cultural terms of</font> the Drake Equation<font color="#E5E5E5"> we move into areas</font> where<font color="#CCCCCC"> we're</font><font color="#E5E5E5"> uncertain but during the</font> last<font color="#E5E5E5"> few</font><font color="#CCCCCC"> years we've seen how exoplanets</font> <font color="#E5E5E5">have arisen in front of our eyes thanks</font> mainly to the Kepler space satellite when Frank Drake first wrote down the Drake Equation<font color="#E5E5E5"> back in 1961 he</font><font color="#CCCCCC"> put his</font> <font color="#E5E5E5">own personal estimates into each of</font> those factors<font color="#CCCCCC"> and came up with a number</font> his estimate<font color="#E5E5E5"> which was</font><font color="#CCCCCC"> ten thousand so</font> within<font color="#E5E5E5"> the</font><font color="#CCCCCC"> Milky Way galaxy</font><font color="#E5E5E5"> of a hundred</font> billion<font color="#E5E5E5"> stars</font> he thought<font color="#E5E5E5"> ten thousand of those stars</font> might host technological civilizations <font color="#E5E5E5">what do we know</font><font color="#CCCCCC"> now that we didn't know</font> in 1961<font color="#E5E5E5"> well we know one or two</font><font color="#CCCCCC"> of those</font> terms a<font color="#E5E5E5"> little bit better and they kind</font> of agree with<font color="#CCCCCC"> the</font><font color="#E5E5E5"> optimistic estimates</font> that<font color="#E5E5E5"> were made 50 60 years ago</font><font color="#CCCCCC"> there are</font> other estimates<font color="#CCCCCC"> that</font><font color="#E5E5E5"> are extremely</font> <font color="#E5E5E5">pessimistic there's only one and it's us</font> Carl<font color="#E5E5E5"> Sagan had a number that was</font> more optimistic<font color="#E5E5E5"> he said probably a</font> million was his<font color="#CCCCCC"> guess we think we</font><font color="#E5E5E5"> know</font> that<font color="#CCCCCC"> our star and NCB are both numbers</font> that are closer<font color="#E5E5E5"> to 10 then say to one</font> and all the<font color="#CCCCCC"> F factors are less than 1</font> <font color="#E5E5E5">some of them may be much</font><font color="#CCCCCC"> less than 1 but</font> of all these unknowns the biggest <font color="#CCCCCC">unknown is Kell</font><font color="#E5E5E5"> so perhaps the</font><font color="#CCCCCC"> most</font> useful version of the Drake Equation<font color="#E5E5E5"> is</font> simply to say<font color="#CCCCCC"> that n is approximately</font> <font color="#E5E5E5">equal</font><font color="#CCCCCC"> to</font><font color="#E5E5E5"> L the information in this</font> equation is very<font color="#E5E5E5"> clear unless L is large</font> <font color="#CCCCCC">n will be small</font><font color="#E5E5E5"> and these are estimates</font> <font color="#CCCCCC">just for our galaxy but we don't</font><font color="#E5E5E5"> have</font> estimates just for our galaxy<font color="#E5E5E5"> but for</font> the<font color="#E5E5E5"> visible universe</font> this fact multiplies the chances for<font color="#CCCCCC"> the</font> <font color="#E5E5E5">existence of extraterrestrial</font> intelligence<font color="#E5E5E5"> the Hubble Space Telescope</font> <font color="#CCCCCC">has given us an approximate calculation</font> <font color="#CCCCCC">of the total number of</font><font color="#E5E5E5"> galaxies in the</font> <font color="#CCCCCC">Bible universe</font><font color="#E5E5E5"> 100 billion so we can</font> <font color="#E5E5E5">calculate the number</font><font color="#CCCCCC"> of</font><font color="#E5E5E5"> earth-like</font> planets in<font color="#E5E5E5"> the visible</font><font color="#CCCCCC"> universe a</font> trillion<font color="#E5E5E5"> earth-like planets the universe</font> is 14 billion<font color="#E5E5E5"> years old so there has</font> <font color="#CCCCCC">been time enough for intelligent</font><font color="#E5E5E5"> empires</font> to<font color="#CCCCCC"> arise and possibly fall</font> it would be miraculous<font color="#CCCCCC"> if no</font><font color="#E5E5E5"> other</font> advanced civilization anywhere<font color="#E5E5E5"> had ever</font> existed<font color="#E5E5E5"> it's just a matter of time until</font> <font color="#CCCCCC">we find them</font> <font color="#E5E5E5">radio telescope technology</font><font color="#CCCCCC"> is becoming</font> more<font color="#E5E5E5"> and</font><font color="#CCCCCC"> more advanced and some</font> scientists believe<font color="#E5E5E5"> that the first</font> <font color="#CCCCCC">evidence will be found in the</font><font color="#E5E5E5"> next</font> decades<font color="#E5E5E5"> so far we've looked at little</font> over<font color="#CCCCCC"> ten thousand stars very carefully</font> with the<font color="#E5E5E5"> Allen telescope array in the</font> next<font color="#E5E5E5"> couple of decades</font><font color="#CCCCCC"> that'll be a</font> million stars<font color="#E5E5E5"> and by the time you've</font> looked at a<font color="#CCCCCC"> million stars</font><font color="#E5E5E5"> that's a</font> reasonable number<font color="#CCCCCC"> to find intelligent</font> <font color="#E5E5E5">life if it's really out there in</font><font color="#CCCCCC"> fact</font> people like<font color="#E5E5E5"> craig Venter and Daniel</font> Cohen<font color="#E5E5E5"> have said 20th century was the</font> century of physics<font color="#E5E5E5"> 21st</font><font color="#CCCCCC"> century is going</font> <font color="#E5E5E5">to be the century of biology but my</font> colleagues and astrobiologists<font color="#E5E5E5"> and young</font> <font color="#E5E5E5">scientists are saying yes the century of</font> biology<font color="#E5E5E5"> on earth and beyond this coming</font> <font color="#CCCCCC">century this 21st century could well</font> provide<font color="#E5E5E5"> us with evidence of life beyond</font> Earth and a biochemistry<font color="#E5E5E5"> that's</font> <font color="#E5E5E5">different from the</font><font color="#CCCCCC"> only</font><font color="#E5E5E5"> one we know</font> the chance of an imminent discovery <font color="#E5E5E5">brings with it a controversial question</font> what will the first contact be like what could you minh being say to another <font color="#CCCCCC">intelligence</font><font color="#E5E5E5"> species what introductory</font> message<font color="#E5E5E5"> can we compose about human</font> <font color="#CCCCCC">beings</font><font color="#E5E5E5"> that species that it habits</font><font color="#CCCCCC"> one</font> of the edges of<font color="#CCCCCC"> the universe and who</font> have developed enough to<font color="#CCCCCC"> wonder if there</font> is anyone<font color="#CCCCCC"> else out there</font><font color="#E5E5E5"> or to try to</font> find them there should<font color="#E5E5E5"> be a deliberative</font> process<font color="#E5E5E5"> to think about how we want</font><font color="#CCCCCC"> to</font> <font color="#E5E5E5">present ourselves to other worlds and</font> that<font color="#E5E5E5"> is a dynamic conversation that</font> we're having<font color="#CCCCCC"> now</font><font color="#E5E5E5"> in the</font><font color="#CCCCCC"> south</font><font color="#E5E5E5"> and in the</font> science community<font color="#E5E5E5"> should we transmit if</font> we do who<font color="#E5E5E5"> should speak for Earth what</font> should they<font color="#CCCCCC"> say in what language how</font> it's not<font color="#E5E5E5"> a simple task</font><font color="#CCCCCC"> to ponder a</font><font color="#E5E5E5"> first</font> <font color="#E5E5E5">introduction to an extraterrestrial</font> <font color="#CCCCCC">intelligence</font><font color="#E5E5E5"> and the even more</font> complicated<font color="#CCCCCC"> question of how to compose</font> that message to make it<font color="#E5E5E5"> understood how</font> we would say<font color="#CCCCCC"> something meaningful</font><font color="#E5E5E5"> to</font> another civilization<font color="#CCCCCC"> it is going</font><font color="#E5E5E5"> to be</font> one<font color="#E5E5E5"> of the most tremendous intellectual</font> challenges humankind has<font color="#E5E5E5"> ever faced</font> <font color="#E5E5E5">composing a message that</font><font color="#CCCCCC"> can</font><font color="#E5E5E5"> be</font> <font color="#CCCCCC">understood by</font><font color="#E5E5E5"> aliens</font><font color="#CCCCCC"> will be extremely</font> <font color="#CCCCCC">difficult and conversation may be</font> impossible<font color="#CCCCCC"> in order</font><font color="#E5E5E5"> to make contact with</font> another<font color="#CCCCCC"> civilization and truly</font> understand them we have to<font color="#E5E5E5"> find a</font> language<font color="#E5E5E5"> that any scientist who is</font> engaged in SETI<font color="#E5E5E5"> anywhere in the galaxy</font> <font color="#E5E5E5">will understand</font><font color="#CCCCCC"> this is what's called</font> active SETI<font color="#E5E5E5"> or Metis messaging to</font> extraterrestrial<font color="#E5E5E5"> intelligence</font><font color="#CCCCCC"> if you can</font> build a radio<font color="#E5E5E5"> transmitter anywhere in</font> the galaxy<font color="#CCCCCC"> you have to know that two</font> plus<font color="#E5E5E5"> two</font><font color="#CCCCCC"> equals four and so it's basic</font> mathematical principles like<font color="#E5E5E5"> that that</font> we use as<font color="#CCCCCC"> the foundation for</font><font color="#E5E5E5"> a language</font> <font color="#E5E5E5">to communicate with extraterrestrials in</font> terms of the message<font color="#E5E5E5"> content how it</font> <font color="#CCCCCC">should be sent and what it should say</font> <font color="#E5E5E5">what would we say about</font> ourselves and what<font color="#CCCCCC"> are efficient</font> <font color="#CCCCCC">encoding schemes and how do</font><font color="#E5E5E5"> we provide a</font> tutorial so that they can figure out what the scheme is my<font color="#E5E5E5"> suggestion is to</font> send the<font color="#E5E5E5"> internet right send so much</font> <font color="#CCCCCC">information that they</font><font color="#E5E5E5"> can look through</font> <font color="#E5E5E5">it</font><font color="#CCCCCC"> and</font><font color="#E5E5E5"> find</font><font color="#CCCCCC"> pictures videos sounds text</font> <font color="#CCCCCC">of course and they'll be able</font><font color="#E5E5E5"> to</font> understand<font color="#CCCCCC"> its are</font><font color="#E5E5E5"> like the</font> hieroglyphics several<font color="#E5E5E5"> messages have</font> already been sent to space<font color="#E5E5E5"> and we hope</font> <font color="#CCCCCC">to receive</font><font color="#E5E5E5"> an answer someday the first</font> sent message was attached to the Pioneer 10 space probe launched by NASA<font color="#E5E5E5"> from</font> Cape Canaveral<font color="#CCCCCC"> on March 2nd 1972 a</font> golden anodized<font color="#E5E5E5"> aluminum plate designed</font> by astronomers Carl Sagan<font color="#E5E5E5"> and Francis</font> Drake was affixed to the probe it was a kind of an interstellar message<font color="#E5E5E5"> in a</font> bottle on it drawings<font color="#E5E5E5"> of two human figures</font> appear one feminine<font color="#E5E5E5"> and one masculine</font> <font color="#E5E5E5">with the image of the spacecraft behind</font> them to show the proportion of the human silhouettes<font color="#E5E5E5"> our address</font><font color="#CCCCCC"> in the universe</font> <font color="#E5E5E5">was also included</font><font color="#CCCCCC"> as</font><font color="#E5E5E5"> well as a scheme of</font> <font color="#CCCCCC">our solar</font><font color="#E5E5E5"> system another similar plate</font> was affixed to the<font color="#E5E5E5"> Pioneer</font><font color="#CCCCCC"> 11</font> [Music] the next message<font color="#E5E5E5"> sent in 1974</font><font color="#CCCCCC"> was</font> designed by the<font color="#CCCCCC"> dr. Frank Drake and</font> transmitted by<font color="#E5E5E5"> the Arecibo radio</font> telescope in<font color="#CCCCCC"> Puerto Rico</font><font color="#E5E5E5"> this message is</font> generally known as<font color="#E5E5E5"> the Arecibo message</font> <font color="#E5E5E5">there's a very simple</font><font color="#CCCCCC"> message</font><font color="#E5E5E5"> took three</font> <font color="#CCCCCC">minutes to</font><font color="#E5E5E5"> send and it provides a</font> <font color="#CCCCCC">mathematical and scientific</font><font color="#E5E5E5"> overview of</font> life on<font color="#CCCCCC"> earth</font><font color="#E5E5E5"> it starts with a</font> description<font color="#E5E5E5"> of our numbering system in a</font> binary code numbers from 1<font color="#CCCCCC"> to 10 and</font> then using those<font color="#E5E5E5"> numbers a description</font> of chemical elements<font color="#CCCCCC"> that are</font><font color="#E5E5E5"> essential</font> to<font color="#CCCCCC"> life</font><font color="#E5E5E5"> on</font><font color="#CCCCCC"> earth and once we can talk</font> about those chemicals we can talk about the way they combine into<font color="#E5E5E5"> molecules</font> <font color="#E5E5E5">including DNA</font><font color="#CCCCCC"> the core of</font><font color="#E5E5E5"> our genetic</font> <font color="#CCCCCC">material here on</font><font color="#E5E5E5"> earth the arecibo</font> message also<font color="#E5E5E5"> gave a description of our</font> <font color="#E5E5E5">solar system</font><font color="#CCCCCC"> the population</font><font color="#E5E5E5"> of our earth</font> even a diagram of<font color="#E5E5E5"> the telescope that was</font> used to<font color="#E5E5E5"> transmit the message</font> 1977<font color="#E5E5E5"> saw the launch of the sounds of the</font> <font color="#CCCCCC">earth the</font><font color="#E5E5E5"> most elaborate and</font> comprehensive message to date<font color="#E5E5E5"> recorded</font> <font color="#CCCCCC">on golden records they were affixed to</font> each other on the<font color="#CCCCCC"> Voyager spacecrafts</font> <font color="#E5E5E5">besides salutations in 55 languages they</font> included an audio<font color="#E5E5E5"> section devoted to the</font> <font color="#E5E5E5">sounds of the earth volcanoes</font> lightning<font color="#CCCCCC"> wind laughter</font> and the message in<font color="#E5E5E5"> Latin per aspera ad</font> astra<font color="#E5E5E5"> through hardship to</font><font color="#CCCCCC"> the stars</font><font color="#E5E5E5"> in</font> Morse code also included were eclectic selections of music from different<font color="#E5E5E5"> cultures the</font> <font color="#CCCCCC">Brandenburg Concerto number 2 by Bach</font> <font color="#CCCCCC">the</font><font color="#E5E5E5"> Magic Flute by Mozart the melancholy</font> blues by Louis Armstrong Beethoven's <font color="#E5E5E5">fifth symphony</font> [Music] as well as traditional<font color="#E5E5E5"> music from</font> <font color="#CCCCCC">different cultures in addition to the</font> audio 116 photographs were sent showing different forms of<font color="#E5E5E5"> life on the earth and</font> human<font color="#CCCCCC"> society</font><font color="#E5E5E5"> mathematics definitions</font> <font color="#E5E5E5">the structure of</font><font color="#CCCCCC"> DNA a diagram of</font><font color="#E5E5E5"> the</font> fertilization<font color="#E5E5E5"> and birth a violin with</font> musical notes and<font color="#E5E5E5"> so on well anyone</font> receive these messages<font color="#E5E5E5"> will we have an</font> answer<font color="#CCCCCC"> but</font><font color="#E5E5E5"> above all what will those who</font> receive this message<font color="#E5E5E5"> be like I think</font> <font color="#CCCCCC">that one of the best things about</font> finding life<font color="#E5E5E5"> a second Genesis life that</font> <font color="#CCCCCC">isn't related to us some else somewhere</font> <font color="#E5E5E5">else will be will</font><font color="#CCCCCC"> be</font><font color="#E5E5E5"> to begin to</font> understand<font color="#CCCCCC"> how biology can</font><font color="#E5E5E5"> be different</font> <font color="#E5E5E5">I mean we don't even</font><font color="#CCCCCC"> know if they'd have</font> <font color="#E5E5E5">the similar biochemistry but on the</font> <font color="#E5E5E5">other</font><font color="#CCCCCC"> hand you know we're carbon-based</font> life-forms<font color="#E5E5E5"> and carbon which</font><font color="#CCCCCC"> is all over</font> the universe of<font color="#E5E5E5"> course is great at</font> hooking up with other atoms<font color="#E5E5E5"> to make</font> <font color="#E5E5E5">complex chemistry and since that's what</font> we<font color="#CCCCCC"> are you know they might be</font> carbon-based<font color="#E5E5E5"> that's not crazy</font><font color="#CCCCCC"> we're</font> having a<font color="#E5E5E5"> hard time figuring out</font><font color="#CCCCCC"> what</font> other ways there might<font color="#CCCCCC"> be we're working</font> on it <font color="#E5E5E5">from the bottom up with synthetic</font> <font color="#CCCCCC">biology</font><font color="#E5E5E5"> trying to build life in other</font> ways but I<font color="#CCCCCC"> think life elsewhere will</font> have evolved to<font color="#E5E5E5"> be perfectly suited to</font> <font color="#E5E5E5">its environment</font> if the environments<font color="#E5E5E5"> are similar to ours</font> <font color="#E5E5E5">then there could in fact be a lot of</font> similarities if the environments are extremely <font color="#E5E5E5">different</font><font color="#CCCCCC"> from those that we enjoy here</font> on this planet<font color="#CCCCCC"> then I</font><font color="#E5E5E5"> think it's</font> <font color="#CCCCCC">unimaginable</font><font color="#E5E5E5"> I'd love to find out what</font> we can't<font color="#CCCCCC"> imagine in fact as we imagine</font> the kind of<font color="#E5E5E5"> beings we make contact</font><font color="#CCCCCC"> what</font> they may not be biological beings at all <font color="#E5E5E5">on earth we are anticipating computers</font> becoming advanced enough that they may <font color="#E5E5E5">even deserve the term intelligence in</font> the next century<font color="#CCCCCC"> or so</font><font color="#E5E5E5"> so if we make</font> <font color="#CCCCCC">contact with</font><font color="#E5E5E5"> a civilization that's</font> thousands or millions of<font color="#E5E5E5"> years</font><font color="#CCCCCC"> more</font> advanced than<font color="#CCCCCC"> we are</font><font color="#E5E5E5"> the intelligence on</font> the other end<font color="#E5E5E5"> of the line may be an</font> artificial<font color="#E5E5E5"> intelligence these</font> hypothetical forms of life may<font color="#E5E5E5"> have</font> abandoned their biological bodies a long time ago to create<font color="#E5E5E5"> a computer body they</font> may have the ability<font color="#CCCCCC"> to build a quantum</font> <font color="#CCCCCC">computer</font><font color="#E5E5E5"> with an extraordinary computing</font> power<font color="#E5E5E5"> a super intelligent device with</font> the<font color="#E5E5E5"> same</font><font color="#CCCCCC"> capacity as a conventional</font> computer<font color="#E5E5E5"> that occupies a whole planet</font> then they may have lost<font color="#E5E5E5"> their</font> consciousness<font color="#E5E5E5"> of the self to be absorbed</font> by a<font color="#E5E5E5"> global digital network of minds a</font> great collective consciousness but in terms of what<font color="#E5E5E5"> they'd be like what they'd</font> look<font color="#CCCCCC"> like nobody can release say</font><font color="#E5E5E5"> except</font> <font color="#E5E5E5">this probably within a hundred years</font> we're going to develop<font color="#CCCCCC"> Thinking Machines</font> <font color="#CCCCCC">here on earth so I think it's very</font> <font color="#CCCCCC">likely that</font><font color="#E5E5E5"> if you actually pick</font><font color="#CCCCCC"> up a</font> <font color="#E5E5E5">signal coming from elsewhere it's not</font> <font color="#CCCCCC">coming from some sort of biological</font><font color="#E5E5E5"> beam</font> <font color="#E5E5E5">it's coming from a machine the search</font> for extraterrestrial<font color="#CCCCCC"> intelligence is</font><font color="#E5E5E5"> not</font> really<font color="#CCCCCC"> different from</font><font color="#E5E5E5"> the search for</font><font color="#CCCCCC"> our</font> <font color="#CCCCCC">own</font><font color="#E5E5E5"> future</font> the absolute ignorance<font color="#CCCCCC"> about the</font> possible aims of an<font color="#CCCCCC"> extraterrestrial</font> intelligence<font color="#CCCCCC"> is what has led</font><font color="#E5E5E5"> some</font> scientists<font color="#CCCCCC"> to voice their misgivings</font> <font color="#E5E5E5">about announcing our existence to</font> <font color="#E5E5E5">extraterrestrials</font><font color="#CCCCCC"> at least</font><font color="#E5E5E5"> until we</font><font color="#CCCCCC"> know</font> their<font color="#E5E5E5"> intentions toward us</font> active SETI is a controversial topic<font color="#CCCCCC"> no</font> less<font color="#E5E5E5"> than the cosmologists Tevan Hawking</font> warned<font color="#E5E5E5"> do not transmit to</font><font color="#CCCCCC"> et you know</font> when he said that<font color="#E5E5E5"> in 2010 his concern</font> was<font color="#CCCCCC"> that aliens may invade earth to</font> strip-mine our planet<font color="#E5E5E5"> taking our rare</font> <font color="#E5E5E5">resources</font> well<font color="#E5E5E5"> Hawking is a genius but he can't</font> predict the future<font color="#CCCCCC"> and so there's no way</font> he<font color="#CCCCCC"> could have</font><font color="#E5E5E5"> told</font><font color="#CCCCCC"> that earth-like</font> planets are distributed everywhere<font color="#E5E5E5"> but</font> even if there is a danger even<font color="#E5E5E5"> if</font> another civilization can come to earth it's too late<font color="#CCCCCC"> to conceal</font><font color="#E5E5E5"> our existence</font> any<font color="#E5E5E5"> civilization with the ability to</font> <font color="#CCCCCC">travel between the stars can already</font> pick up<font color="#CCCCCC"> our radio</font><font color="#E5E5E5"> and TV signals that</font> are leaking<font color="#E5E5E5"> off into space</font><font color="#CCCCCC"> there is no</font> added danger<font color="#E5E5E5"> of transmitting signals</font> through active<font color="#E5E5E5"> SETI</font> in any case considering the data we now know a first<font color="#E5E5E5"> contact may be possible in</font> a short<font color="#E5E5E5"> time</font> it's also<font color="#CCCCCC"> possible that</font><font color="#E5E5E5"> some</font> <font color="#E5E5E5">civilization has already listened to our</font> messages<font color="#E5E5E5"> nevertheless how is it possible</font> that<font color="#E5E5E5"> if there are</font><font color="#CCCCCC"> other civilizations we</font> haven't yet<font color="#CCCCCC"> received any evidence of</font> their existence<font color="#CCCCCC"> this</font><font color="#E5E5E5"> is what is known as</font> <font color="#E5E5E5">the Fermi paradox the physicist Enrico</font> Fermi<font color="#CCCCCC"> famously asked</font><font color="#E5E5E5"> where are they</font><font color="#CCCCCC"> the</font> idea<font color="#CCCCCC"> was if in</font><font color="#E5E5E5"> fact the universe is</font> <font color="#CCCCCC">populated with life why haven't</font><font color="#E5E5E5"> they</font> come here<font color="#E5E5E5"> the formulation of that</font> paradox arose when<font color="#CCCCCC"> the physicist Enrico</font> Fermi<font color="#E5E5E5"> was working on the</font><font color="#CCCCCC"> Manhattan</font> Project<font color="#CCCCCC"> whose aim was the development</font><font color="#E5E5E5"> of</font> <font color="#E5E5E5">the u.s. atomic bomb</font> Fermi's answer to his paradox<font color="#E5E5E5"> was that</font> every advanced civilization develops along<font color="#CCCCCC"> with its technology</font><font color="#E5E5E5"> the potential</font> to exterminate itself<font color="#E5E5E5"> as was thought</font><font color="#CCCCCC"> to</font> be happening at that<font color="#E5E5E5"> time the fact</font><font color="#CCCCCC"> that</font> other extraterrestrial civilizations had not been found<font color="#CCCCCC"> implied for him a tragic</font> end<font color="#CCCCCC"> for Humanity</font> however there<font color="#E5E5E5"> are several possible</font> solutions<font color="#CCCCCC"> to</font><font color="#E5E5E5"> the Fermi paradox</font><font color="#CCCCCC"> they do</font> exist<font color="#CCCCCC"> but they are not communicating</font> <font color="#CCCCCC">with us they do exist and communicate</font> but<font color="#E5E5E5"> we can't hear them they do exist and</font> have been here but we weren't they do exist<font color="#CCCCCC"> but most people don't know it yet</font> <font color="#E5E5E5">they have disappeared</font> maybe these civilizations<font color="#E5E5E5"> have already</font> destroyed<font color="#CCCCCC"> themselves as a consequence of</font> a nuclear war<font color="#CCCCCC"> or some other cause</font><font color="#E5E5E5"> but we</font> find even<font color="#E5E5E5"> more solutions to the paradox</font> <font color="#CCCCCC">well there are a lot of</font><font color="#E5E5E5"> answers</font><font color="#CCCCCC"> to the</font> Fermi paradox<font color="#E5E5E5"> you</font><font color="#CCCCCC"> know</font><font color="#E5E5E5"> one is that it's</font> <font color="#CCCCCC">actually very</font><font color="#E5E5E5"> difficult</font><font color="#CCCCCC"> to</font><font color="#E5E5E5"> travel</font> between the<font color="#CCCCCC"> stars you know</font><font color="#E5E5E5"> even over the</font> course<font color="#E5E5E5"> of long periods of time it takes</font> a<font color="#CCCCCC"> lot of</font><font color="#E5E5E5"> energy it takes</font><font color="#CCCCCC"> a lot of</font> commitment<font color="#CCCCCC"> and</font><font color="#E5E5E5"> anything that</font><font color="#CCCCCC"> you</font><font color="#E5E5E5"> can</font> gain in terms<font color="#E5E5E5"> of information you could</font> <font color="#E5E5E5">get a lot cheaper simply by sending</font> <font color="#E5E5E5">radio signals another possible</font><font color="#CCCCCC"> solution</font> <font color="#E5E5E5">is that we aren't interesting to them if</font> some<font color="#E5E5E5"> civilization were able to come to</font> the<font color="#E5E5E5"> earth from</font><font color="#CCCCCC"> the</font><font color="#E5E5E5"> stars it would have</font> to be thousands<font color="#E5E5E5"> or millions times more</font> advanced than ours<font color="#CCCCCC"> and we may not have</font> anything<font color="#E5E5E5"> interesting to offer them such</font> a civilization<font color="#E5E5E5"> might consider us as</font> primitive as we consider a<font color="#E5E5E5"> simple</font> <font color="#E5E5E5">beehive would it make any sense for us</font> <font color="#CCCCCC">to interact</font><font color="#E5E5E5"> with bees and try to make</font> them understand our advances in spacecraft<font color="#E5E5E5"> missions nuclear</font><font color="#CCCCCC"> energy or</font> quantum mechanics<font color="#E5E5E5"> or maybe there is</font> colonization<font color="#CCCCCC"> and we just don't</font><font color="#E5E5E5"> happen to</font> <font color="#CCCCCC">see it because it's not nearby</font> or it<font color="#E5E5E5"> isn't very obvious</font> paradoxically<font color="#E5E5E5"> the</font><font color="#CCCCCC"> galaxy could be filled</font> with intelligent forms of<font color="#CCCCCC"> life</font><font color="#E5E5E5"> but we</font> are so primitive<font color="#CCCCCC"> that we have not</font><font color="#E5E5E5"> even</font> realized it another<font color="#E5E5E5"> explanation for the</font> <font color="#E5E5E5">Fermi paradox is that</font><font color="#CCCCCC"> we may</font><font color="#E5E5E5"> have</font> <font color="#CCCCCC">already received those signals</font><font color="#E5E5E5"> but we</font> haven't<font color="#CCCCCC"> realised it</font> we haven't perceived the signals or we <font color="#E5E5E5">haven't been able</font><font color="#CCCCCC"> to understand or</font> decode them in this case some strange signals from outer space<font color="#CCCCCC"> have been received</font><font color="#E5E5E5"> their</font> origins are now being investigated<font color="#CCCCCC"> and</font> they have posed serious<font color="#E5E5E5"> questions for</font> <font color="#E5E5E5">scientists the most famous signal has</font> been detected<font color="#CCCCCC"> came in 1977 it was</font><font color="#E5E5E5"> at</font> <font color="#CCCCCC">Ohio State University's Big Ear</font><font color="#E5E5E5"> radio</font> telescope<font color="#CCCCCC"> and in the course of listening</font> for signals<font color="#E5E5E5"> from another civilization</font> <font color="#CCCCCC">there was this message</font><font color="#E5E5E5"> that was strong</font> <font color="#CCCCCC">that was spread out over frequency it</font> looked exactly like<font color="#E5E5E5"> the kind of signal</font> <font color="#CCCCCC">we would want to</font><font color="#E5E5E5"> get from et</font><font color="#CCCCCC"> during his</font> work on the night<font color="#E5E5E5"> shift on July</font><font color="#CCCCCC"> 15 1977</font> <font color="#CCCCCC">Jerry R Eamonn professor</font><font color="#E5E5E5"> of the</font><font color="#CCCCCC"> state</font> <font color="#CCCCCC">university</font><font color="#E5E5E5"> of</font><font color="#CCCCCC"> Ohio and SETI project</font> volunteer observed the weird transcription of the radio signal made by a computer<font color="#E5E5E5"> in a section of paper feed</font> <font color="#E5E5E5">to confirm later that it was the most</font> intense<font color="#E5E5E5"> anomalous signal detected up to</font> that point<font color="#E5E5E5"> by a radio telescope the</font> signal of unknown origin<font color="#E5E5E5"> had a duration</font> <font color="#E5E5E5">of 72 seconds and reached an intensity</font> 30 times<font color="#E5E5E5"> higher than conventional</font> signals<font color="#E5E5E5"> and had come from the</font> <font color="#E5E5E5">constellation of Sagittarius</font><font color="#CCCCCC"> in fact it</font> was so astounding that<font color="#E5E5E5"> when the</font> technician<font color="#E5E5E5"> was looking at the printout</font> the<font color="#E5E5E5"> next morning he wrote while in the</font> margin<font color="#CCCCCC"> and that's become known as the</font> WoW<font color="#E5E5E5"> signal the computer processed the</font> signals<font color="#E5E5E5"> received into a series</font><font color="#CCCCCC"> of</font> alphanumeric characters it wrote the sequence<font color="#E5E5E5"> 6eq uj5 which has kept the</font> international<font color="#E5E5E5"> scientific community on</font> edge<font color="#CCCCCC"> until today</font> <font color="#E5E5E5">'man and his team studied the signal in</font> detail<font color="#E5E5E5"> in the end they were able to rule</font> <font color="#CCCCCC">out that</font><font color="#E5E5E5"> it had been part of any</font> interference coming<font color="#E5E5E5"> from the earth so</font> <font color="#E5E5E5">during the following month</font><font color="#CCCCCC"> the</font><font color="#E5E5E5"> operators</font> of<font color="#E5E5E5"> the radio telescope tried to</font> <font color="#E5E5E5">reposition the signal but they didn't</font> succeed<font color="#E5E5E5"> well many times in the decades</font> <font color="#CCCCCC">since then</font><font color="#E5E5E5"> astronomers have looked at</font> the same part of<font color="#E5E5E5"> the sky to see whether</font> they<font color="#E5E5E5"> can find the WoW signal again</font> but we've never been<font color="#E5E5E5"> able</font><font color="#CCCCCC"> to replicate</font> it<font color="#CCCCCC"> so the key</font><font color="#E5E5E5"> to progress in SETI is to</font> be<font color="#CCCCCC"> able</font><font color="#E5E5E5"> to find a signal</font><font color="#CCCCCC"> that looks</font><font color="#E5E5E5"> as</font> <font color="#E5E5E5">good</font><font color="#CCCCCC"> as</font><font color="#E5E5E5"> the</font><font color="#CCCCCC"> vowel signal but now to</font><font color="#E5E5E5"> be</font> able<font color="#E5E5E5"> to find it not just once</font><font color="#CCCCCC"> but over</font> <font color="#CCCCCC">and</font><font color="#E5E5E5"> over and over</font><font color="#CCCCCC"> again today the origin</font> of<font color="#E5E5E5"> that signal is still under</font> investigation another signal<font color="#CCCCCC"> which provoked important</font> debates<font color="#E5E5E5"> was the radio source</font><font color="#CCCCCC"> shg be 0</font><font color="#E5E5E5"> to</font> <font color="#CCCCCC">+1 for a</font><font color="#E5E5E5"> discovered in March 2003 by</font> SETI at home and announced a<font color="#CCCCCC"> new</font> <font color="#E5E5E5">scientists on September 1st 2004 since</font> SETI at home started<font color="#E5E5E5"> more</font><font color="#CCCCCC"> than 5 billion</font> signals have<font color="#CCCCCC"> been detected</font><font color="#E5E5E5"> that because</font> of their mathematical profile or their lack of repetition<font color="#E5E5E5"> in time have been</font> ruled out among all<font color="#E5E5E5"> of them the</font> candidate<font color="#CCCCCC"> shg be 0</font><font color="#E5E5E5"> to plus 1 for a was</font> one of the very few<font color="#E5E5E5"> that was confirmed</font> again<font color="#CCCCCC"> and the only one to</font><font color="#E5E5E5"> maintain</font><font color="#CCCCCC"> a</font> high statistical<font color="#E5E5E5"> chance of being</font> intelligent<font color="#E5E5E5"> and of extraterrestrial</font> origin another relevant signal was the one observed by the Australian astronomer <font color="#CCCCCC">Greg Burt</font><font color="#E5E5E5"> bottle a SETI collaborator who</font> found a strange signal close to what years later would be confirmed by NASA <font color="#E5E5E5">as the</font><font color="#CCCCCC"> first habitable planet</font><font color="#E5E5E5"> the</font><font color="#CCCCCC"> glycin</font> 581 just 20 light-years away on the NASA website<font color="#CCCCCC"> in the section</font> <font color="#CCCCCC">astrology picture of the day we</font><font color="#E5E5E5"> found an</font> explanation for the signal<font color="#E5E5E5"> no one knows</font> for<font color="#E5E5E5"> sure what caused this signal there</font> <font color="#CCCCCC">is a slight possibility that it just</font> might originate from an<font color="#CCCCCC"> extraterrestrial</font> intelligence<font color="#E5E5E5"> many unusual signals from</font> space remain unidentified the study of signals possibly emitted by an<font color="#CCCCCC"> extraterrestrial intelligence as a</font> delicate matter<font color="#CCCCCC"> that requires a great</font> <font color="#CCCCCC">deal of confirmation first</font><font color="#E5E5E5"> if you</font><font color="#CCCCCC"> think</font> you have<font color="#CCCCCC"> a signal from an</font> extraterrestrial<font color="#CCCCCC"> make sure check check</font> with colleagues double-check<font color="#E5E5E5"> your data</font> and then secondly if you're really <font color="#E5E5E5">pretty sure you found it tell the whole</font> world despite countless conjectures about<font color="#CCCCCC"> a</font> possible contact<font color="#E5E5E5"> or some</font><font color="#CCCCCC"> evidence that</font> is<font color="#E5E5E5"> being hidden</font><font color="#CCCCCC"> SETI</font><font color="#E5E5E5"> states that we</font> haven't yet<font color="#CCCCCC"> received a confirmed signal</font> <font color="#E5E5E5">and makes it clear that</font><font color="#CCCCCC"> as far as SETI</font> is concerned<font color="#E5E5E5"> it wouldn't be a piece of</font> <font color="#E5E5E5">information to hide a lot of people in</font> this country figured that the federal government<font color="#E5E5E5"> would cover</font><font color="#CCCCCC"> it all up because</font> the public couldn't handle the news well we know that<font color="#E5E5E5"> isn't</font><font color="#CCCCCC"> true because</font><font color="#E5E5E5"> we had</font> false alarms<font color="#E5E5E5"> and what actually happens</font> is the media are very<font color="#E5E5E5"> interested the</font> newspapers the<font color="#CCCCCC"> radio shows TV</font><font color="#E5E5E5"> shows they</font> call you<font color="#CCCCCC"> up right away</font><font color="#E5E5E5"> if you get any</font> kind of interesting signal so according <font color="#CCCCCC">to the SETI</font><font color="#E5E5E5"> protocol the day they</font> confirm the<font color="#CCCCCC"> first signal indicative of</font> extraterrestrial intelligence<font color="#CCCCCC"> they will</font> make the news known worldwide<font color="#CCCCCC"> a fact</font> that considering technological advances may occur in a short time<font color="#E5E5E5"> seth shostack</font> <font color="#E5E5E5">declared before the House Science</font> Committee of the American<font color="#CCCCCC"> Congress</font><font color="#E5E5E5"> that</font> in a<font color="#E5E5E5"> couple of decades</font><font color="#CCCCCC"> we will have</font> <font color="#E5E5E5">found evidence of its</font><font color="#CCCCCC"> existence the</font> <font color="#E5E5E5">chances</font><font color="#CCCCCC"> of finding it I think are good</font> and if that happens it will happen<font color="#E5E5E5"> in</font> the next<font color="#E5E5E5"> 20 years depending on the</font> financing there are sort of guesses as to how many societies might be out there broadcasting and those guesses run from maybe<font color="#E5E5E5"> 10,000 to a</font><font color="#CCCCCC"> million</font> well if then the correct number is<font color="#E5E5E5"> any</font> where in that<font color="#E5E5E5"> range then we</font><font color="#CCCCCC"> should find</font> <font color="#CCCCCC">something</font><font color="#E5E5E5"> within a few decades so you</font> know this is not<font color="#E5E5E5"> like building</font> cathedrals in<font color="#E5E5E5"> the Middle Ages this is</font> something that's<font color="#CCCCCC"> gonna work</font><font color="#E5E5E5"> within one</font> generation<font color="#E5E5E5"> if it's going to</font><font color="#CCCCCC"> work at all</font> <font color="#E5E5E5">if I had to bet when we will find</font> intelligence beyond<font color="#CCCCCC"> earth I'd say in the</font> <font color="#E5E5E5">next 20 years</font><font color="#CCCCCC"> and it's simply</font><font color="#E5E5E5"> because</font> technology is<font color="#E5E5E5"> advancing all the time</font> SETI success depends<font color="#E5E5E5"> on computing power</font> what will happen<font color="#CCCCCC"> from then on</font><font color="#E5E5E5"> what will</font> occur when<font color="#E5E5E5"> we receive a</font><font color="#CCCCCC"> signal and it</font><font color="#E5E5E5"> is</font> confirmed as<font color="#E5E5E5"> extraterrestrial</font><font color="#CCCCCC"> how would</font> <font color="#E5E5E5">that affect our lives</font><font color="#CCCCCC"> our priorities our</font> conception of<font color="#E5E5E5"> the world and our own</font> identity as humankind<font color="#CCCCCC"> prepared</font><font color="#E5E5E5"> so what</font> happens if<font color="#E5E5E5"> we</font><font color="#CCCCCC"> find a signal if we find</font> evidence<font color="#CCCCCC"> that they're out there you know</font> <font color="#E5E5E5">people will still go to</font><font color="#CCCCCC"> work the</font><font color="#E5E5E5"> next</font> day or they're in school they'll still go to school<font color="#CCCCCC"> they won't divorce their</font> spouses there won't be civil unrest they won't be rioting in the streets<font color="#CCCCCC"> it's</font> just<font color="#E5E5E5"> that we will know something really</font> important that<font color="#CCCCCC"> as wonderful as</font><font color="#E5E5E5"> Earth is</font> as wonderful<font color="#CCCCCC"> as our species is we're not</font> <font color="#E5E5E5">the only kids on the block</font><font color="#CCCCCC"> and I think</font> it's good to<font color="#E5E5E5"> know that if it's true in</font> January 2010<font color="#CCCCCC"> the Royal Society held a</font> conference<font color="#E5E5E5"> entitled the detection of</font> extraterrestrial life<font color="#E5E5E5"> and the</font> consequences<font color="#E5E5E5"> for science and</font><font color="#CCCCCC"> society the</font> <font color="#CCCCCC">introduction of the conference was as</font> <font color="#E5E5E5">follows astronomers are able now to</font> detect planets<font color="#E5E5E5"> where life may exist</font><font color="#CCCCCC"> and</font> the<font color="#E5E5E5"> living generation could see the</font> signature of extraterrestrial life<font color="#CCCCCC"> being</font> detected<font color="#E5E5E5"> should it turn</font><font color="#CCCCCC"> out that</font><font color="#E5E5E5"> we are</font> <font color="#E5E5E5">not alone in the universe</font><font color="#CCCCCC"> people</font> <font color="#CCCCCC">fundamentally</font><font color="#E5E5E5"> affect how humanity</font> understands<font color="#E5E5E5"> itself and we need to be</font> prepared<font color="#CCCCCC"> for the consequences</font> [Music] over the long term if you<font color="#E5E5E5"> actually did</font> get a message<font color="#CCCCCC"> and could understand it of</font> <font color="#E5E5E5">course that could</font><font color="#CCCCCC"> be</font><font color="#E5E5E5"> very transformative</font> <font color="#E5E5E5">imagine you know giving I don't know</font> Neanderthals<font color="#E5E5E5"> to keep the keys to your</font> <font color="#E5E5E5">local library</font><font color="#CCCCCC"> say hey you</font><font color="#E5E5E5"> might want</font><font color="#CCCCCC"> to</font> read some<font color="#CCCCCC"> of this stuff I mean that</font> would<font color="#E5E5E5"> change everything for them so</font> there is that potential<font color="#CCCCCC"> although I think</font> <font color="#E5E5E5">it's a fairly far-fetched idea concern</font> that a discovery could<font color="#E5E5E5"> be</font><font color="#CCCCCC"> closed</font> <font color="#CCCCCC">humankind</font><font color="#E5E5E5"> has slowly</font><font color="#CCCCCC"> started to</font><font color="#E5E5E5"> prepare</font> <font color="#E5E5E5">itself to establish a protocol procedure</font> neither a country nor a collective of <font color="#CCCCCC">people would</font><font color="#E5E5E5"> be represented but all of</font> humankind<font color="#E5E5E5"> there's a protocol called the</font> declaration<font color="#E5E5E5"> of principles concerning</font> activities following<font color="#E5E5E5"> the detection of</font> extraterrestrial intelligence<font color="#CCCCCC"> and this</font> provides guidelines<font color="#E5E5E5"> about what</font><font color="#CCCCCC"> do we</font><font color="#E5E5E5"> do</font> next the most fundamental issue raised in this protocol<font color="#E5E5E5"> is before there is</font><font color="#CCCCCC"> a reply</font> there should be<font color="#E5E5E5"> broad-based global</font> discussion that if we are to speak<font color="#E5E5E5"> to</font> <font color="#CCCCCC">another civilization</font><font color="#E5E5E5"> if we are to send a</font> response<font color="#CCCCCC"> it should be a response that</font> <font color="#E5E5E5">has gathered global input this wasn't</font> transmitted to<font color="#E5E5E5"> the SETI Institute or to</font> any other<font color="#E5E5E5"> organization the message was</font> transmitted to<font color="#E5E5E5"> earth it belongs to the</font> <font color="#E5E5E5">whole earth it should be shared</font><font color="#CCCCCC"> widely</font> most scientists<font color="#CCCCCC"> agree that a finding</font> <font color="#CCCCCC">like this would alter and transform the</font> status quo in many ways<font color="#E5E5E5"> what would be</font> its<font color="#CCCCCC"> effect on our society our</font><font color="#E5E5E5"> science</font> <font color="#CCCCCC">our technology or our religion</font><font color="#E5E5E5"> so for me</font> detecting<font color="#E5E5E5"> another civilization is a way</font> of coming<font color="#E5E5E5"> to a better understanding</font><font color="#CCCCCC"> of</font> who<font color="#CCCCCC"> we are as human beings it would mean</font> a chance<font color="#E5E5E5"> to</font><font color="#CCCCCC"> see whether the ways of</font> <font color="#CCCCCC">knowing that</font><font color="#E5E5E5"> we've</font><font color="#CCCCCC"> developed here on</font> <font color="#E5E5E5">earth our math our science our ways of</font> expressing ourselves our music our art <font color="#CCCCCC">are they somehow</font><font color="#E5E5E5"> tapping into something</font> <font color="#CCCCCC">that</font><font color="#E5E5E5"> goes beyond</font><font color="#CCCCCC"> earth or are they</font> uniquely ours<font color="#CCCCCC"> the discovery would</font><font color="#E5E5E5"> be on</font> the same level<font color="#E5E5E5"> as those of Copernicus</font> and Darwin and as of the transforming events in<font color="#E5E5E5"> human history</font><font color="#CCCCCC"> however it will</font> <font color="#E5E5E5">be</font><font color="#CCCCCC"> decades before people get</font><font color="#E5E5E5"> used to the</font> idea that<font color="#E5E5E5"> we are not alone in the</font> <font color="#CCCCCC">universe</font><font color="#E5E5E5"> and it's real meaning becomes</font> deeply<font color="#E5E5E5"> ingrained has occurred with the</font> <font color="#CCCCCC">hel eccentric cosmology and biological</font> evolution it's likely that<font color="#CCCCCC"> our first</font> contact<font color="#E5E5E5"> with an extraterrestrial</font> <font color="#E5E5E5">civilization will happen when the Allen</font> <font color="#CCCCCC">telescope array detects a message that</font> confirms at last<font color="#CCCCCC"> the existence of</font> extraterrestrial intelligent life or when one of the people<font color="#CCCCCC"> connected to</font><font color="#E5E5E5"> the</font> SETI at home project announces that his computer has<font color="#E5E5E5"> decoded some of the signals</font> of<font color="#E5E5E5"> the Arecibo telescope then our first</font> contact will be<font color="#CCCCCC"> a uni-directional</font> conversation we might capture<font color="#E5E5E5"> some</font> intelligent message by chance<font color="#E5E5E5"> but it</font> could<font color="#E5E5E5"> take decades or centuries before</font> <font color="#E5E5E5">our answer gets to them given the huge</font> distances<font color="#CCCCCC"> of the universe</font><font color="#E5E5E5"> let me tell</font> you what my my hope for the impact<font color="#E5E5E5"> of the detection of a distant</font> technology would<font color="#CCCCCC"> be what I hope is that</font> <font color="#E5E5E5">we</font><font color="#CCCCCC"> can make it understood to the people</font> on this planet that the only<font color="#E5E5E5"> way that</font> <font color="#E5E5E5">contact happened was because on average</font> <font color="#E5E5E5">technological civilizations have a long</font> lifetime<font color="#E5E5E5"> we're sitting</font><font color="#CCCCCC"> here is a very</font> young technology<font color="#E5E5E5"> and we literally do not</font> <font color="#E5E5E5">know whether it's possible</font><font color="#CCCCCC"> to</font><font color="#E5E5E5"> grow old</font> to be<font color="#CCCCCC"> able to be wise</font><font color="#E5E5E5"> enough to</font><font color="#CCCCCC"> manage</font> our population to<font color="#E5E5E5"> Shepherd our planet to</font> go forward into<font color="#CCCCCC"> a long future long in</font> cosmic times but if we find<font color="#E5E5E5"> someone else</font> <font color="#E5E5E5">we know the answer to that question we</font> get a proof of<font color="#E5E5E5"> existence</font><font color="#CCCCCC"> it's possible</font> <font color="#E5E5E5">to grow</font> somebody else figured out how to do it and I would<font color="#CCCCCC"> hope that that</font><font color="#E5E5E5"> would</font> motivate us<font color="#CCCCCC"> to find solutions to</font><font color="#E5E5E5"> the</font> problems that<font color="#E5E5E5"> we face</font><font color="#CCCCCC"> today</font><font color="#E5E5E5"> we know that</font> <font color="#CCCCCC">somebody</font><font color="#E5E5E5"> else made it through this</font> <font color="#E5E5E5">bottleneck</font> technological adolescence<font color="#E5E5E5"> I'd hope it</font> would<font color="#CCCCCC"> motivate us to find answers for</font> ourselves<font color="#E5E5E5"> today we know that</font><font color="#CCCCCC"> the first</font> contact<font color="#CCCCCC"> may occur in not too a long</font><font color="#E5E5E5"> time</font> <font color="#E5E5E5">it's not easy to figure</font><font color="#CCCCCC"> out what will</font> happen in this first communication<font color="#CCCCCC"> if it</font> will<font color="#CCCCCC"> be</font><font color="#E5E5E5"> something positive</font><font color="#CCCCCC"> or</font><font color="#E5E5E5"> harmful</font><font color="#CCCCCC"> to</font> human beings what is clear<font color="#CCCCCC"> is that it will be a</font> turning point<font color="#E5E5E5"> in the</font><font color="#CCCCCC"> life of</font><font color="#E5E5E5"> the human</font> <font color="#E5E5E5">species</font> [Music]
Info
Channel: Spark
Views: 929,897
Rating: 4.4221907 out of 5
Keywords: alien life documentary 2019, aliens 2019, alien conspiracy, conspiracy aliens, are aliens real, do aliens exist, Spark, Science, Technology, Learning, How To, documentary, factual, mind blown, construction, building, full documentary, space documentary, Science documentary, aliens, extraterrestrial life, alien life, extra terrestrial, extraterrestrial life (film genre), aliens caught on tape, aliens caught on camera, aliens caught on tape 2018 real footage, is there anybody out there
Id: EVBCLAaflaw
Channel Id: undefined
Length: 50min 47sec (3047 seconds)
Published: Mon Mar 11 2019
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