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Q&A What did the night sky look like 63 million years ago?

I'm working on a comic which is essentially alternate-history fiction, and a big upcoming part of it involves the formation of the Chicxulub crater 63 million years ago. As I am a stickler for acc...

3 answers  ·  posted 9y ago by fluffy‭  ·  last activity 5y ago by fluffy‭

Question astronomy orbital-mechanics natural-disasters alternate-history history