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Re: Martian Lake Country?

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  • uwrk
    ... building ... Thanks very much for the information, but there are some unanswered questions. When did the lakes exist and when was that vallis formed by
    Message 1 of 3 , Jul 2, 2002
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      --- In wannabeastronomers@y..., "jefftibb" <jefftibb@y...> wrote:
      > Today's Astronomy Picture Of the Day (APOD) shows a region on Mars
      > with strong indications of long ago water erosion and canyon
      building
      > like the Grand Canyon.
      >
      >
      > http://antwrp.gsfc.nasa.gov/apod/astropix.html
      >
      > They show areas that were probably a chain of Martian lakes.
      >
      > Evidence is presented here:
      > http://www.nasm.edu/nasm/pa/nasmnews/pr/research/062002.htm
      >
      > And more here:
      > http://www.nasm.si.edu/ceps/research/mars/irwin_lakes.htm
      >
      > This data all comes from Mars Global Surveyor.
      >
      > http://mars.jpl.nasa.gov/mgs/

      Thanks very much for the information, but there are some
      unanswered questions. When did the lakes exist and when was that
      vallis formed by overflow? Hesperian period? Or even earlier?
    • jefftibb
      Good questions all of them. I hope we ll be able to get some of the answers soon. ... Mars
      Message 2 of 3 , Jul 6, 2002
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        Good questions all of them.

        I hope we'll be able to get some of the answers soon.


        --- In wannabeastronomers@y..., uwrk <no_reply@y...> wrote:
        > --- In wannabeastronomers@y..., "jefftibb" <jefftibb@y...> wrote:
        > > Today's Astronomy Picture Of the Day (APOD) shows a region on
        Mars
        > > with strong indications of long ago water erosion and canyon
        > building
        > > like the Grand Canyon.
        > >
        > >
        > > http://antwrp.gsfc.nasa.gov/apod/astropix.html
        > >
        > > They show areas that were probably a chain of Martian lakes.
        > >
        > > Evidence is presented here:
        > > http://www.nasm.edu/nasm/pa/nasmnews/pr/research/062002.htm
        > >
        > > And more here:
        > > http://www.nasm.si.edu/ceps/research/mars/irwin_lakes.htm
        > >
        > > This data all comes from Mars Global Surveyor.
        > >
        > > http://mars.jpl.nasa.gov/mgs/
        >
        > Thanks very much for the information, but there are some
        > unanswered questions. When did the lakes exist and when was that
        > vallis formed by overflow? Hesperian period? Or even earlier?
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