Astronomy Unit 1: The Universe

Tuesday, January 19, 2016

How do we know dark energy exists? http://safeYouTube.net/w/BXs

Dark energy - Crash course Astronomy #43

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Mr. Gluckin: I teach high school Astronomy at the Ohio Virtual Academy. Before becoming a teacher in 2007, I spent many years in the TV and video industry. I helped start a production company, shot news, created commercials and documentaries. I also directed and produced live talk shows, quiz shows, and concerts.

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