What-If-Uranus-Collided-With-Earth #facts #Uranus #earth
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00:00It's been 30 days since Uranus first appeared in the sky.
00:06At first, it looked like our Moon had found itself a stellar partner.
00:12But then we understood something much, much bigger was headed our way.
00:30A collision changed the ice giant.
00:33And what's this horrific stink?
00:36Ugh!
00:38This is WHAT IF, and here's what would happen if Uranus collided with Earth.
00:47Let's roll back 30 days, when things were still normal.
00:51Uranus lived a quiet life on the outskirts of our Solar System,
00:56about 3 billion km away from us.
01:00And then suddenly, it began to move closer.
01:06Astronomers would be the first to push the panic button.
01:09By their calculations, it would take Uranus 13 years to reach the collision point.
01:16We'd be short on time, but at least we'd have a slight chance to evacuate the Earth.
01:22But the cold blue giant had other plans in mind.
01:30This would be no standard planetary drill.
01:34Planets don't just take off from their orbits for no reason at all,
01:39but somehow Uranus did.
01:42Now it would be hurtling through the Solar System,
01:45ramping up to a speed of around 1,000 km per second.
01:51Because of this unexpectedly fast speed,
01:54we'd only have about 30 days left on this planet.
01:59Uranus would shine like a bright blue star in the sky,
02:03and every day it would appear bigger and brighter.
02:08Our sky would look gorgeous,
02:10not only because of the ice giant shining down on us,
02:14but also thanks to many shooting stars.
02:17Only those wouldn't be stars at all.
02:21To get to the Earth's orbit,
02:24Uranus would have to pass an asteroid belt between Jupiter and Mars.
02:29This would disrupt the stable orbits of many asteroids and throw some of them our way.
02:36These asteroids can be as big as 240 km in diameter.
02:43That's a few times larger than the one responsible
02:46for wiping dinosaurs off the face of the Earth about 65 million years ago.
02:53We would have nowhere to go.
02:55We'd just be left here,
02:57watching the end of times unfold in front of our eyes.
03:01Might as well enjoy the view.
03:06By the time the first asteroids appeared as shooting stars,
03:10Uranus would look about the same size as the Moon,
03:14but it would be growing rapidly as it moved ever closer.
03:18While you'd be here awaiting humanity's doom,
03:22Uranus would start shaking things up.
03:26Because Uranus is about 15 times more massive than the Earth,
03:32its gravitational pull would start massively affecting our planet.
03:37Volcanoes would begin erupting uncontrollably,
03:41and tremendous earthquakes would get in on the act,
03:44destroying the Earth from the inside.
03:48And the stink.
03:50You'd drop unconscious from even one whiff of it because,
03:55well, I mean, Uranus smells like farts.
04:00The ice giant's upper atmosphere is mostly composed of hydrogen sulfide.
04:05It's the same stuff that makes rotten eggs reek so bad.
04:09Imagine an entire planet of rotten eggs engulfing the Earth.
04:16The thought of it makes me nauseous.
04:20But Uranus wouldn't come alone.
04:24It would bring all of its 27 moons along for the ride.
04:28And those moons would be hitting the Earth from all sides.
04:34As a fart-filled finale,
04:37Uranus would compress what was left of our atmosphere.
04:41And the rapidly rising temperatures would ignite it.
04:46Just like that, our beautiful blue planet
04:49would fall in line and start circling the ice giant,
04:53eventually becoming one of its many moons.
04:58Uranus wouldn't get away with this assault so easily, however.
05:03Last time it collided with another planetary object twice the size of Earth,
05:08it tipped over.
05:09Yeah, Uranus is the only planet in our neighborhood that spins on its side.
05:18This impact, featuring our Earthly home,
05:21could help tilt it back to how it once was.
05:25But for the Earth, we know that would be it.
05:29If by some unexplained mystery,
05:32life on Earth's stinking leftovers emerged once again,
05:37we would see the blue of Uranus on the horizon.
05:41It would look just as cool as if the Earth was one of Jupiter's moons.
05:46But that's a story for another WHAT IF.