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Asteroid Belt Discovered Around Our Sun's "Twin"

loid_void writes "that the National Geographic is reporting evidence of a massive asteroid belt around a "twin" of our own sun has been found. Kim Weaver, a Spitzer Space Telescope scientist, said the finding marks "the first time that scientists have found evidence for a massive asteroid belt around a mature, sunlike star." "This region around the star is the sort of place where rocky planets [like Earth] may form," The star, dubbed HD69830, is some 41 light-years away--which, in space terms, is practically our own backyard. Part of the constellation Puppis, the star is a tad too faint to see with the unaided eye."

3 of 19 comments (clear)

  1. Could this be by perdu · · Score: 4, Funny

    The remnants of Alderaan!

    --
    You only use 2% of your DNA
    1. Re:Could this be by fvbommel · · Score: 5, Funny

      What kind of a geek are you? Alderaan was in a galaxy far far away. (It was blown up a long, long time ago, you know)

  2. Re:The elements have to go somewhere by Stoutlimb · · Score: 4, Insightful

    Why do you think they didn't coalesce into rocky planets? There could certainly be some, but I doubt they would be habitable.

    I think there are some explanations for this. Either the asteroid field is more recent than ours, therefore denser. Either that, or that the configuration of planets in that system are keeping the asteroid field in place.

    Either that, or we are looking at a normal asteroid field for a star of that age and size. Our field could be unusually small, and how would we know it?