What if the earth were physically split in half?

This question asks what if the world was divided into two regions? I'm asking what if the world were split into two planets.

Let's say some aliens come to Earth and prank us (apparently they never heard of the prime directive) by taking the earth, and magically moving the two halves (you can pick which two make it most interesting) apart from each other such that the distance between them is the same as the old diameter of the earth. Also, to be nice, they moved the moon into orbit around the sun so we wouldn't get a three body problem. Other satellites are placed into miscellaneous orbits around each part. Also, the two halves are set into rotation around each other so they maintain roughly the same distance. After they have done this, the magic stops, and the aliens leave.

What happens now? I am looking for both short term and long term answers.

posted almost 9 years ago

PyRulez‭

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