What If on MSN
Imagine if Halley’s comet crashed into the moon
There’s a giant, peanut-shaped object orbiting the Sun, and it’s name is Halley’s comet. Like all comets, it’s a cosmic ...
Our Moon was formed from a violent collision that occurred around 4.5 billion years ago. And the giant body that smashed into the Earth, birthing the planet’s natural satellite, was named Theia. A new ...
New research suggests that Theia, the object whose collision with Earth is theorized to have caused the formation of the moon, came from closer to the sun. Artist’s impression of the collision between ...
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