Episode 51
51: When Mars was the "Pink Planet" with Dr. Smith
Spacepod · Carrie Nugent
June 26, 201614m 51s
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Show Notes
Dr. Issac Smith visits the show to talk about one of Mars' past ice ages; a time when most of the planet was covered in ice. He talks about how he made this discovery by looking at the layers of ice deposited on the planet's North pole.