Last time a stray planetoid the size of Mars smashed into Earth, it scattered our planet's young crust into space, where gravity glued those particles into what we now call the Moon.
This time, it would be all hellfire and brimstone with no survivors left. And here's a timeline of how things break down...
Transcript and sources: https://insh.world/science/what-if-the-earth-collided-with-another-planet/
Watch more what-if scenarios:
Planet Earth: https://www.youtube.com/watch?v=_-HhCwYD7rc&list=PLZdXRHYAVxTJCzxwmCq0NNpYq9N9wyb2l
The Cosmos: https://www.youtube.com/watch?v=gfuJyVkMH_g&list=PLZdXRHYAVxTJno6oFF9nLGuwXNGYHmE8U
Your Body: https://www.youtube.com/watch?v=QmXR46TrbA8&list=PLZdXRHYAVxTJNsV9FFeNAKl2ySsHj8GZO
Follow what-if on Instagram for bonus material: https://www.instagram.com/what.if.show/
Suggest an episode: http://bit.ly/suggest-whatif
T-shirts and merch: http://bit.ly/whatifshop
Facebook Watch: https://www.facebook.com/What.If.science
Watch on Tubi: http://bit.ly/what-if-tubi
"Imagination will often carry us to worlds that never were. But without it, we go nowhere." Carl Sagan
If you enjoy What If, make sure to check out our other channel "Underknown": https://www.youtube.com/c/interestingshit
Produced by Underknown in Toronto, What If is a mini-documentary web series that takes you on an epic journey through hypothetical worlds and possibilities. Join us on an imaginary adventure grounded in scientific theory through time, space and chance, as we ask what if some of the most fundamental aspects of our existence were different.