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What is Dark Matter? (Video)

Scientific American launches a new regular video feature

Dark Matter is weird stuff -- "non-baryonic matter," as Scientific American editor George Musser puts it in this minute and a half take on the nature of the mystery substance that makes up the majority of the mass in our universe. This is episode 1 of our new video podcast, which you can subscribe to via iTunes, or via RSS, or check out at our new site, 60 Second Science.

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