September 10, 2011

Interactive on Asteroids

http://www.msnbc.msn.com/id/33216017/ns/technology_and_science-space/from/toolbar

1 comment:

  1. Lila C. p7
    I never knew there were so few asteroids. I cant believe the mass of all the asteroids put together is less than the moon!! I always imagined there to be a lot more of them.
    i dont get how asteroids can change their orbit, but planets can't. that seems strange to me.

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