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Rover Success on Mars!

  1. Mar 2, 2004 #1

    Phobos

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    http://www.cnn.com/2004/TECH/space/03/02/mars.findings/index.html



    p.s. Thanks to Evo for the heads-up on this.
     
    Last edited: Mar 2, 2004
  2. jcsd
  3. Mar 2, 2004 #2

    Njorl

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    It will be interesting to see speculation about what happened to the water. Underground lakes? Absorbed into rocks? Evaporated, hydrolyzed and lost to space?

    Njorl
     
  4. Mar 2, 2004 #3

    LURCH

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    I watched the webcast, they said they've also found sulfates that could be examined by a later mission to finding fairly definite proof of past life.
     
  5. Mar 2, 2004 #4
    Woohoo!!
     
  6. Mar 2, 2004 #5
    Perhaps the environment became unstable due to catastraphic activities, (E.G. volcanoes, asteriod bombardment, Texan-equivalant of Mars elected to presidential office, et cetera.) and the iron core melded with the water. Maybe Valles Marineris might have been a bridge between the core and the oceanic crust. A crust-core link would cool down the planet, leave carbon-based gas emissions, and cause iron oxide to form throughout the planet's soil.

    I suppose this will encourage both robotic and crewed missions to our mysterious neighbour.
     
  7. Mar 5, 2004 #6

    Nereid

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    The most likely is permafrost, which is at, or close to, the surface pole-ward of ~60o to ~80o, and is increasingly deep at lower latitudes. How deep is the permafrost? The top ~200m is dry ('ice free'), with permafront at ~450m at equatorial latitudes. How do we know this? Rampart craters - their distribution by depth and latitude [Hartmann*, p100].

    A lot of water was lost to space, and some is certainly hydrolysed.


    *William K. Hartmann "A Traveler's Guide to Mars"

    [Edit: checked Hartmann re permafrost, edited appropriately]
     
    Last edited: Mar 8, 2004
  8. Mar 8, 2004 #7

    Ivan Seeking

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    Please update your estimates for Drake's variables.
     
  9. Mar 8, 2004 #8

    Nereid

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    Ward and Brownlee

    Anyone read Peter Ward and Donald Brownlee's "Rare Earth"?

    Very interesting, especially as a discussion starter.

    Oh, and it takes a somewhat different look at the Drake equation ...
     
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