Aaron Celestian Talks Life on Mars
"On Earth we look for things that are moving or growing to identify life. On Mars, it's not that easy." 
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There's Climate History at the Bottom of the Ocean
Looking at ocean sediments reveals how Earth has changed over time.
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Gems of the Americas
Travel back in time with one of NHM's most beloved gems, this video from our vaults. 
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Hot Rocks and Natural Beauties
Dr. Anthony Kampf, the museum’s Curator Emeritus of Mineral Sciences, says his work with minerals like Benitoite can sometimes seem like an episode of the TV show CSI.
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Minerals on Mars
Scientists have long wondered if Mars could support life. But what exactly should we look for?
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