• Random Space Fact
Is our solar system really that small? Dr. Bruce Betts has this week's Random Space Fact.New videos every Friday! Subscribe to The Planetary Society: http://bit.ly/1t9KJvYRSF 11 - How big is our Milky Way?Starring Dr. Bruce Betts | Video by Merc Boyan | Music by Jim McKeeverFollow Bruce on Twitter: http://twitter.com/randomspacefactFollow The Planetary Society: http://twitter.com/exploreplanets
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