One-Minute Physics: What is dark matter?

Sandrine Ceurstemont, editor, New Scientist TV

Nobody has ever seen dark matter, yet it makes up 80% of the universe. So how do we know it's there? In this latest One-Minute Physics animation by Henry Reich, find out what dark matter is and how we know it exists. It's part of a series of animations that explains a physics concept in just one minute. In previous episodes, you can find out how far away tomorrow is or check out how we know our world is 3D.

Source: http://feeds.newscientist.com/c/749/f/10897/s/18942922/l/0L0Snewscientist0N0Cblogs0Cnstv0C20A110C0A90Cone0Eminute0Ephysics0Ewhat0Eis0Edark0Ematter0Bhtml0DDCMP0FOTC0Erss0Gnsref0Fonline0Enews/story01.htm

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