Miles O’Brien:
Origins, as in the origins of life on Earth. Asteroids are rocks left over from the formation of the solar system 4.5 billion years ago orbiting in the deep freeze of space ever since.
Anything mixed in, like water or organic chemicals, likely remains pristine. Earth, on the other hand is a geologically active place. In its early days, it was made up almost entirely of magma, not a cushy berth for life. But what if vast swarms of asteroids like Bennu bombarded Earth just as it was cooling down, say, about four billion years ago?
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