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There isn’t that much of a difference in the number of comets in space across just 5 billion years.
by kulahan 1y ago
There isn’t that much of a difference in the number of comets in space across just 5 billion years.
- mkl 1y agoThere's not much difference between now and 3.5-3.8 billion years ago, but before that there were a lot more: https://en.wikipedia.org/wiki/Late_Heavy_Bombardment https://en.wikipedia.org/wiki/Late_Heavy_Bombardment