Moon Smasher/Secrets in the Salt/Bird Brains/Lonnie Thompson - S4.E5
Follow a NASA satellite looking for water on the moon, see what ancient salt deposits reveal about life 250 million years ago, learn how bird brains are remarkably similar to our own, and meet a climatologist who digs for clues to climate change in the world's highest glaciers.
Moon Smasher/Secrets in the Salt/Bird Brains/Lonnie Thompson - S4.E5
July 28, 2009
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