Show Details


May 8, 2009

An artist's depiction of what a young planet on the brink of harboring life might look like. (NASA/JPL-Caltech)

COSMIC LIFE: Life on the ancient earth and beyond. The comet theory of the origins of life, how oxygen became abundant enough to support an explosion of life, a new method for locating life on other planets, and refuting the asteroid theory of dinosaur extinction.


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