00:00What rammed into Uranus? I mean Uranus.
00:03Around 4 billion years ago, a massive cosmic hit-and-run changed Uranus forever.
00:09While every other planet spins like a top, Uranus rolls like a ball.
00:13Why? Scientists believe a renegade, icy superplanet, more than double the mass of Earth, slammed into it.
00:20This colossal impact was so powerful, it knocked the planet completely on its side.
00:26It didn't just tip the planet, it tilted its entire system.
00:30Today, Uranus' moons, rings, and magnetic field all propagate vertically.
00:36It's a permanent scar from a chaotic early solar system where giant worlds played a violent game of billiards.
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