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Big Stars | How the Universe Works

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Published on Apr 18, 2014

The sun has been lighting our planet for 4.6 billion years and dominates all life on Earth -- but it's a speck in comparison to the other stars in the universe. | For more How the Universe Works, visit http://science.discovery.com/tv-shows...

Subscribe to Science Channel! | http://www.youtube.com/subscription_c...

Check out SCI2 for infinitely awesome science videos. Every day. | http://bit.ly/SCI2YT

Download the TestTube app! | http://testu.be/1ndmmMq

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