24 Planets Even Better for Life Than Earth

okay quick space riddle why is the search for life in the universe like a tree because you're always looking for a place to plant it you know plant it plant it okay settle down anyway water is the basis of life in any part of the universe so potentially inhabited planets must have liquid water on them to support life an incredible number of circumstances must come together for this the planet must be in the habitable zone of the star then the temperature and atmospheric pressure on the planet's surface will be suitable for simple life forms to begin to evolve a little closer to the star and the water will evaporate leaving no chance for oceans and seas to form this is what happened on venus it has a size and mass similar to the earth but it's too close to the sun and no life can exist on its surface too far from the star and the planet becomes too cold water can only exist in the form of ice on the surface and there just might be liquid water deep below neptune is one example of this in addition the planet must be solid and have an atmosphere that protects it from solar radiation and allows living organisms to breathe in our galaxy alone there are countless stars really you can't count on them near each one of them may be a planet they're called exoplanets and some of them may be in the habitable zone and have everything for life to form on them from a list of 4 500 known exoplanets scientists have identified 24 that can be super habitable this is the type of planet that is suitable for the existence and evolution of life even more than the earth such planets must be twice as massive as the earth and 1.3 times larger a bigger size means stronger gravity and a denser and warmer atmosphere this will ensure a greater diversity of all living organisms on the planet in addition we should pay attention to the host star around which the super habitable planets will orbit and there should be a mcdonald's nearby ideally it should be smaller than the sun and have a lifespan of at least 15 to 30 billion years for comparison the lifespan of the sun is under 10 billion years and it took about 4 billion for complex life forms to appear here stars such as the sun can't simply run out of fuel before life can develop on its exoplanet scientists suggest focusing on dwarf stars they're smaller and less luminous than the sun but their lifespan can be between 20 and 70 billion years this will give living organisms enough time to develop and evolve climactic conditions on super habitable planets will also be different the average temperature should be eight degrees fahrenheit higher than on earth and there should be more water in the form of clouds liquid and humidity these conditions are the most favorable for biodiversity so the whole planet would be looking like tropical forests on earth all 24 candidates for the title of better than earth are more than 100 light years away from us and with the advent of the new generation of telescopes we'll probably be able to find out exactly if there is life there and if the conditions there are suitable for humans now let's take a look at the potentially inhabited exoplanets tea garden b it's an exoplanet that orbits a red dwarf star about 12 light years away from the solar system typically red dwarfs can emit flares that blow away the atmosphere of the planets in its orbit but this host star is calm and relatively passive tea garden b has almost the same mass as the earth it makes a complete circle around its star in about five days yep you got it right a year on t garden b is less than a week on earth hold on your hats the furthest potential inhabited planet is kepler 1638b it's in the constellation cygnus about 3 000 light years away from us it belongs to the super earth class is twice as wide and four times as heavy as our home planet the gravity on it will feel much stronger even a normal jump will be much harder for you than on earth although if this planet is really inhabited local life is used to such conditions lhs 1140b this planet is very rocky and solid although its size is only 40 percent larger than the earth it's seven times as massive it has a strong gravity of 3.25 gs for comparison when you take off on an airplane you experience an overload of about one and a half g's so on this planet you'd barely be able to stand on your feet because of its large mass this planet has a thicker atmosphere and because of the greenhouse effect its temperature can be above 19 degrees fahrenheit and it rotates around its star quite quickly it makes a full circle in just 24 days and now let's look at the constellation aquarius here's an ultra cold dwarf trappist-1 a small planet orbits in its habitable zone it's three times lighter than the earth its temperature is similar to ours but the gravity is half as weak but we would still feel comfortable there remember the people that went to the moon there the gravity is only 16 of the earth's that's what makes the astronauts move so funny kepler-452b is in a system that resembles the older sister of ours the host star is only 11 percent older than our sun and is almost 2 billion years older the exoplanet itself is six and a half billion years old compared to four and a half billion of earth's but these sisters are very far from each other if you travel at the speed of the new horizon spacecraft it will take about 26 million years to get there so bring a big lunch this is the closest exoplanet to us proxima centauri b it orbits the red dwarf proxima centauri which is the closest star to the sun this planet is just 4.2 light years away from us its size and mass are very similar to those of the earth it probably has an icy structure like neptune although proxima centauri is the closest star after the sun we can't see it with a naked eye because it's too dim so all these planets including the 24 that scientists have recently found are in the habitable zone of their host stars and in theory we can colonize them and make them suitable for human life in the future but here we'll have to solve one big problem even the nearest exoplanet is too far away for us today our modern rockets can fly at five times the speed of sound and even at such speeds it will take us more than one hundred thousand years to get to proxima centauri on one of them well we need to come up with something a bit faster to travel to a new home on one of these exoplanets and perhaps scientists already have the answer warp drive this is a piece of technology that will allow us to manipulate space and time it creates a kind of a bubble in which the normal laws of motion don't work so the spacecraft will be able to significantly exceed the speed of light and this isn't science fiction humanity already has such technology although just in theory yet it's alcubierre warp drive and no i didn't make that up since no object that has mass can travel at the speed of light we need to do one trick the spacecraft has to move by compressing the space in front of it and expanding it behind it thus not only the ship is moving but also the space time inside this warp drive bubble and the maximum speed can be 10 times that of light but to warp the space time the ship must be incredibly large and to power it will need the amount of energy close to what the whole planet of jupiter generates still recent calculations of nasa's jet propulsion lab showed that the ring around the ship which should create the so-called warp field shouldn't be perfectly round as it was thought before it can be more donut shaped ah donuts this will greatly simplify the design and construction and will make it possible to test this technology on a spacecraft the size of a voyager 1 pro even though it still seems impossible scientists are already saying that there is hope and while we don't know what technology will be used in 2069 nasa plans to launch its first interstellar mission to explore potentially habitable planets outside of our solar system various rumors say that the speed of light can be achieved with laser technology if the probe is very small it can be launched to the alpha centauri star at almost the speed of light there are also two other alternatives to power spaceships these are nuclear energy and energy from matter and anti-matter collisions these technologies are still a mystery to humanity though well for the time being stay tuned

Channel: BRIGHT SIDE

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Keywords: bright side, brightside, habitable planets 2020, habitable planets in our solar system, habitable planets in the universe, habitable planets in the milky way, habitable planets like earth, colonization of outer space, faster than light, facts about space, colonization of mars, facts about space and stars, international space station, speed of light, future of earth, nasa, colonization of other planets, facts about space in english, mind blowing facts about space

Id: phpV_0Oi7lk

Length: 10min 2sec (602 seconds)

Published: Mon Nov 23 2020