Dark matter . . . What is it? Nobody knows for sure, but it’s definitely there. Or maybe it’s not there, and we just need some redefinition of gravity at vast scales. Join Fraser and Pamela as we discuss the discovery, detection, and possible explanations of dark matter. Download Episode 4: In Search of Dark Matter [...]

Published: Oct. 2, 2006 Download (13MB audio/mpeg)

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Astronomy Cast

Episode: Episode 4: The Search for Dark Matter

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