Comment on We Can Thank Deep-Space Asteroids for Helping Start Life on Earth

We Can Thank Deep-Space Asteroids for Helping Start Life on Earth

There are a lot of reasons the early Earth was a biologically barren place. For one thing, its surface was molten; for another thing, it had no survivable atmosphere, with very little of the molecular oxygen that is essential for biology. Then too, Earth simply lacked the chemistry to produce biology.

 

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