• Random Space Fact
How big is the Sun compared to Mars? Dr. Bruce Betts has this week's Random Space Fact!RSF 24 - If Mars Were the Size of a Gladius Sword...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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