• Random Space Fact
How does Neptune scale up to Jupiter? Find out from Dr. Bruce Betts on this week's Random Space Fact.
New videos every Friday! Subscribe to The Planetary Society: http://bit.ly/1t9KJvY
RSF 8 - Planet Ping Pong Starring Dr. Bruce Betts | Video by Merc Boyan | Music by Jim McKeever
Follow Bruce on Twitter: http://twitter.com/randomspacefactFollow The Planetary Society: http://twitter.com/exploreplanets
Become a member of The Planetary Society and together we will create the future of space exploration.
Help advance robotic and human space exploration, defend our planet, and search for life.