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Meteor Impacts on the Moon

  1. May 19, 2013 #1

    Astronuc

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    A meteorite crashed into the moon on March 17,
    http://news.yahoo.com/huge-rock-crashes-moon-sparks-giant-explosion-152049489.html

    Apparently, NASA astronomers have been monitoring the moon for lunar meteor impacts for the past eight years.
     
  2. jcsd
  3. May 20, 2013 #2
    What is mind boggling are how many impacts they've recorded, (pic below is 2005 - 2008 only)between perseides and all of the other junk out there:

    Our poor Moon with nary an Atmosphere to protect it
    I still have to dissappoint the Mayan Calender doomsday folks though by telling them as far as the view from Earth is concerned, it's business as usual. We've been hanging out in the denser part of the spiral arm for millions of years. :biggrin:
     
  4. May 20, 2013 #3

    berkeman

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    Why does it look like there are more craters at the poles? Or is it just because of better shadows from the grazing sunlight?
     
  5. May 20, 2013 #4

    D H

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    It's partly because of better shadows, but also partly because there are fewer craters in the lunar maria. The lunar highlands are about the same age as the Moon itself. The lunar maria are a billion or so years younger. There were far more meteor collisions during the Moon's first billion years compared to the 3.5 billion years that followed. Whatever caused the maria to form erased the evidence of that first billion years of continued bombardment.
     
  6. May 20, 2013 #5

    berkeman

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    Very interesting. Thanks DH!
     
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