25 SNEAKY Lies You Were Told About Space

what would you do if I told you that you could be a victim of sneaky space lies but don't worry that you could be a victim of most of us have been victims to wrong information when it comes to space our knowledge of the universe is changing so fast that even the smartest astronomers have to constantly keep up with the new information it's not easy so how many of these space lies do you believe well I'm Mike with lists 25 and let's find out with these 25 sneaky lies you were told about space 25 astronauts are weightless in orbit well sort of the only reason you see them floating around in the Space Shuttle is because the shuttle is actually in freefall with the astronauts inside it so why don't they smash into the earth simplistically they're moving too fast laterally and so they keep missing the ground that's right they just keep falling over the horizon 24 the Sun is yellow it's actually white the reason it looks yellow most of the time is because of the distortion from our atmosphere 23 your mobile phone uses satellites usually no 99% of communication travels via undersea cables only a small portion is bounced off of satellites 22 it would be dangerous to fly through an asteroid belt if you've seen Star Wars then you know what I'm talking about the truth however is that if you actually did fly through an asteroid belt you probably wouldn't even notice the density of asteroids is significantly lower than Hollywood leads us to believe 21 the Great Wall of China is the only man-made structure visible from space nope the great wall isn't actually all that visible from the ISS at about 250 miles up you can see the Great Wall along with numerous other man-made structures but it's definitely not the most visible imprint of man on our planet 20 earth is a perfect sphere due to its spin the earth actually bulges at the equator 19 mercury is the hottest planet you may be tempted to think that because it's so close to the Sun Mercury must be the hottest planet in the solar system you'd be wrong though Venus's atmosphere ensures that its surface is on average 480 degrees Celsius while Mercury's surface averages a hundred and sixty-seven degrees Celsius 18 the Sun is a big ball of fire nope there isn't any fire in the Sun fire requires oxygen and the Sun is composed mostly of helium and hydrogen in fact the heat of the Sun comes from something called a nuclear fusion the pressure and temperature the Sun's core calls the hydrogen atoms to fuse together into helium atoms this process gives off the intense heat and light of the Sun 17 the moon has a dark side the dark side of the moon isn't doused in perpetual blackness but rather it's simply always facing away from us due to the rotation of both the moon and the earth a better name is the far side of the Moon and the only way to see this far side is by actually flying around the moon 16 Pluto is a planet as we all know by now Pluto used to be a planet sadly that's not the case anymore it's now considered a dwarf planet thanks International Astronomical Union but why beyond Neptune is something called the Kuiper belt this belt is basically a massive asteroid belt while Pluto is one of the biggest objects in this belt it's not the most massive 15 planet 9 although it hasn't been found yet observations regarding the orbits of several outer planets have led to the high probability of there being an actual ninth planet in all likelihood it would be quite far away and a good bit bigger than Earth 14 black holes are funnels in movies they're often portrayed as 2d suckers in reality black holes can be thought of as spheres they're basically really dense stars with insanely strong gravity 13 in the Middle Ages people thought the earth was flat almost every scholar of the Middle Ages knew that the earth was round this is the reason that people set off sailing west to go east in fact the Greeks already knew the earth was round by as early as 300 BC twelve space is cold not really it's borderline impossible to measure a proper temperature in space because well there isn't much to measure a high temperature essentially means that the atoms of the substance are excited the vacuum of space however is significantly lacking in the atom department so yes space is basically temperature less 11 you would freeze in space as we just saw it's not that simple in fact it's more likely that you'd overheat why because the heat your body generates won't have anywhere to go on earth you can get rid of the heat transfer it by convection conduction etc in space there isn't much of anything to give your heat to ten your blood would boil in space once again this is quite wrong while it is true that liquids will boil at much lower temperatures with less pressure there's less pressure preventing the liquid from turning into a gas it wouldn't happen to your blood why because your blood is in a closed system and the effect of zero pressure wouldn't affect it immediately of course liquids exposed to the environment would boil right away saliva eyes etc keep in mind this doesn't mean that they would be hot they're simply turning into a gas due to the lower pressure 9 your body would explode in space once again know the human body may bloat a bit but it wouldn't come apart not even close in 1966 a technician in Houston was testing a spacesuit when he decompressed at a hundred and twenty thousand feet almost twenty three miles or 37 kilometers he survived the episode and recalls the saliva boiling off his tongue before losing consciousness aid comet tails trail behind the comment nope a comet's tail is influenced by heat and solar wind not friction or breakup this means that the tail is always facing away from the Sun regardless of the Comets direction of movement 7 you can hear explosions in space you can't hear anything in space because there isn't any medium for the sound to travel through 6 we can't go super fast because our engines aren't strong enough space offers nearly no resistance so even the weakest engine could eventually accelerate a massive object to incredible speeds NASA is experimenting with slow and steady ion thrusters the problem however is fuel to accelerate for so long you need to keep the engine running on something once you hit max speed though you could turn off the engine and cruise to the end of the universe which brings us to the second problem stopping you would need reverse thrust to slow down and that could require just as much fuel in time as it took to speed up 5 there are fiery explosions in space star wars lied to you as with the Sun fire requires oxygen since there is an air in space explosions would look very on Hollywood as for rocket engines they do create fire but that's because they bring along their own source of oxygen in the tank four astronauts fly around with jet packs sort of but nothing like the movies the jet packs are intended to be used as backup moreover they don't have enough fuel to be used hollywood-style 3 nothing can go faster than light while this is essentially true scientists have been showing that quantum mechanics doesn't necessarily follow its own rules all the time quantum entanglement and other such phenomenons may lead to the discovery of faster than light travel this is extremely important not just for spaceships but also other domains like computing to NASA spent millions developing a pen that could write into space this myth is often cited when comparing NASA to the Soviet space agency basically people like to point out that the cosmonauts had enough good sense to simply bring pencils with them the truth however is that NASA used pencils too in fact NASA never even developed the space pen it was a private company the Fisher pen company later on both Americans and Soviets began using the new antigravity pen 1 the Earth orbits the Sun here's your chance to slap your know-it-all friends and face with some knowledge every object exerts force on every other object which means that not only does the Sun's gravity affect the Earth's motion but the Earth's gravity affects the sun's motion technically both objects orbit around something called the Barrow Center for Earth this point is so close to the core of the Sun that it doesn't make much of a difference for Jupiter however the Barrow center is roughly thirty thousand miles away from the surface of the Sun so in some sense were all orbiting around each other enjoying our lists be sure to click that subscribe button in the bottom right so you don't miss out on new ones every Monday to Friday share them with your friends and help us consistently conciliate curiosity and if you want even more lists check out these three videos here or just head to our website at least 25 calm [Music]

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Keywords: List25, sneaky lies about space, lies about space, space lies, space lies you were told in school, 25 SNEAKY Lies You Were Told About Space, space myths, dark side of the moon, list 25, 25 list, science

Id: lkxeqomggF4

Length: 10min 49sec (649 seconds)

Published: Thu Nov 30 2017