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View Diary: Dawn@Vesta - Science Report (15 comments)

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  •  That is the way I understood the grooves... (1+ / 0-)
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    as formed by the impacts. Remember, this is not a huge massive body like Earth. Gravity is weaker. It seems the grooves could be an artifact of those shock waves.

    I look forward to reading about that in a more detailed geology report. Maybe some Kos readers with expertise can offer some opinions.

    There is a large crater with concentric rings on the Moon called Mare Orientale. This great Astronomy Picture of the Day is worth viewing. But, I don't think it is the same kind of feature as on Vesta.

    Denial ain't just a river in Egypt - Mark Twain

    by jim in IA on Wed Oct 12, 2011 at 03:05:21 PM PDT

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    •  Huh! (0+ / 0-)

      good but nowhere near as dramatic as the ones on Vesta.

      In either case you'd think subsequent shocks from other impacts and from other directions would have caused those rings to crumble...and maybe..well...surely they did to some degree, but what is left is amazing.

      Thanks Jim, good stuff.

      Some food needs to put on the family, will look in tonite...

      ..squinting all the while in the glare of a culture that radiates ultraviolet consumerism and infrared celebrity...Russell Brand

      by KenBee on Wed Oct 12, 2011 at 03:20:26 PM PDT

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