00:00What if I told you? The Moon was born from a cosmic catastrophe.
00:04Around 4p5 billion years ago, Earth had a violent run-in with a Mars-sized planet called Theia.
00:09The crash was so massive, it shattered both worlds and launched molten rock into space.
00:15That fiery debris eventually came together, forming the Moon we see today.
00:20But here's the twist. Scientists now believe Theia wasn't some distant drifter.
00:24It may have been Earth's next-door neighbor.
00:27A new study shows that Earth and the Moon share nearly identical metal isotopes, like iron,
00:32while nearby meteorites are completely different.
00:35That means Theia and Earth were likely made from the same stuff.
00:39So instead of a stranger, Theia was more like Earth's twin, a sibling world that never made it.
00:44Now, fragments of that lost planet may still be hiding beneath our feet.
00:48One epic crash. Two worlds become one.
00:52And the Moon? It's the lasting scar of that ancient collision.
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