Colossal Impact 3 Billion Years Ago May Have Boosted Life on Earth : ScienceAlert

Meteorites have a pretty bad reputation. The most recent major impact with our planet was – to be fair – pretty devastating, wiping out a good three-quarters of all animal species on the planet.

But a much, much larger impactor, much longer ago, may have had the opposite effect.

Some 3.26…

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