Lucianne Answers Your Questions - Ask The Experts #20

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Leave your questions in the comment section or ask it in a video response. An expert will be back to answer 3 more of your questions. Thanks for watching!-----------Lucianne Walkowicz is the Henry Norris Russell Fellow in the Department of Astrophysical Sciences at Princeton, and a 2012 TED Senior Fellow. Lucianne's profile on TED: 's blog: answered in this episode:1. If we were to add a lot of mass to the moon, for its gravity to get stronger, what would that mean to the rotation of the earth? Barrows0re2. If smaller objects are being pulled by larger objects, then why does the moon get further and further away from earth? Draftgon3. Why are celestial bodies always spherical in shape? stars, planets, moons. Az A------------SUBSCRIBE, future astronauts! more episodes:

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