An asteroid can literally destroy 80 or 90 percent of the species that are alive on Earth. These are big events. I mean, this is called extinction. (Rusty Schweickart)

An asteroid can literally destroy 80 or 90 percent of the species that are alive on Earth. These are big events. I mean, this is called extinction.

Rusty Schweickart

Related topics

asteroid big earth extinction mean

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