- Geologists have discovered in Greenland evidence for ancient life in rocks that are 3.7 billion years old. The find, if confirmed, would make these fossils the oldest on Earth and may change scientific understanding of the origins of life.
- Evidence of these ancient craters has vanished from Earth but is still evident in the pockmarked face of the moon. And for every crater on the moon, 20 would be expected to have been made on Earth.
The moon has two craters more than 600 miles across that were created during the Late Heavy Bombardment. Some 40 craters this size may have been gouged out of our planet in the same interval, said William F. Bottke, an asteroid expert at the Southwest Research Institute in Boulder, Colo.
By comparison, the asteroid that wiped out the dinosaurs 66 million years ago left a crater only 110 miles in diameter.
Anyway, again, my general question is how this fits in with the normal evolutionary scheme. It seems to me not so much to paint a picture of the mechanisms for the origin of life as much as it does about the nature of life itself, that it is a thing that is very readily produced. I don't think that's picture is consistent with what we've seen elsewhere in the universe so far--granted we have only studied a tiny, tiny, tiny, tiny (x a few more hundred tinies) portion of it--but, still, that just seems a difficult position to defend.
So thoughts/clarifications?