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Martian Meteorite Gets NASA Mars Rover's Attention

Posted by samzenpus on from the would-you-look-at-that dept.

coondoggie writes "NASA's Mars rover Opportunity will take a small detour on its current journey to check out what could be a toaster-sized iron-based meteorite that crashed into the Red Planet. NASA scientists called the rock 'Oileán Ruaidh,' which is the Gaelic name for an island off the coast of northwestern Ireland. The rock is about 45 centimeters (18 inches) wide from the angle at which it was first seen on September 16."

3 of 94 comments (clear)

  1. Something is missing by Stumbles · · Score: 3, Interesting

    If that is a meteorite, then where is the crater?

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    My karma is not a Chameleon.
    1. Re:Something is missing by Lumpy · · Score: 4, Interesting

      You seem know nothing about trig and astrophysics so your assertions are completey bollocks. I can come up with at last 50 scenarios where that rock can simply plop there from space slow enough to make a smallish crater, bounce out and lay on the surface. And I only took classes up to the 101 level.

      Are you assuming that everything in space has millions of miles per hour relative velocities? You know the soil composition of that location?
      Are you telling me that if it came in a very shallow angle it could not get any aerobraking? Strange.... as NASA thinks it can, and I am absolutely certain they know a WHOLE LOT MORE than you do on the subject.

      Also given the gravity well strength of Mars, if that rock was simply captured because it was lazily floating about at only a couple hundred miles an hour, it's impact would be a low energy impact due to relative velocities calculated by any acceleration from mars's gravity well. These are only off the cuff in the head calculations. I'll leave it to you to crack out the calculator or mathlab and give us exact numbers. please calculate out at least 10 reentry angles and show us how you are right and NASA is wrong.

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      Do not look at laser with remaining good eye.
  2. Re:Why? by MichaelSmith · · Score: 4, Interesting

    A rock which has been somewhere else can tell you about conditions at its source, and along the path it took to its present location. It makes sense to investigate rocks like this now because Opportunity may not live much longer. Best to take the opportunities (yeah) as they come.

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    http://michaelsmith.id.au