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Facts of the Matter

Richard Brill is a retired professor of science at Honolulu Community College. His column runs on the first and third Fridays of the month.

 

Facts of the Matter: Snowball Earth hypothesis: A planet frozen in time

Imagine the entire Earth locked in a deep freeze, covered in ice from the poles to the equator. This is the essence of the Snowball Earth hypothesis, a theory that suggests our planet may have been entirely or nearly entirely frozen over multiple times in its ancient past. It’s an idea that sounds like science fiction, but there is strong evidence to back it up. Read more

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