Meteorite from Mars

    Published: 06-16-2009
    Views: 8,893
    Curiosity’s SAM instrument has proven that some meteorites from on Earth did indeed come from the Red Planet based on argon isotopic readings taken by the rover.

    The Curiosity rover has proven that some of the meteorites discovered here on Earth made their way from our neighbor--The Red Planet.  That means their Martian Meteorites right?  Based on info from the rover’s Sample Analysis at Mars instrument, scientists were able to match the argonisotopic ratio found in some meteorites with that seen on Mars, which is slightly different from the rest of the Solar System. On Mars the ratio of light to heavy argon is skewed because most of the planet’s original atmosphere was lost to space, losing much of the lighter form of argon. The match has scientists feeling quite confident, boasting that, “this direct reading from Mars settles the case with all Martian meteorites.”