Neil deGrasse Tyson on Measuring Dark Energy
July 25, 2012
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3:28Now PlayingNeil deGrasse Tyson on Measuring Dark Energy
YouTube Description
as posted by the channelCan we use a spectrometer to measure Dark Energy? Neil deGrasse Tyson, astrophysicist, host of StarTalk Radio and director of the Hayden Planetarium, answers a fan's Cosmic Query in this Behind the Scenes video. With co-host Chuck Nice.
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