Mars’ north pole

  • Mystery at Mars pole explained
    Mystery at Mars pole explained

    In 1966, two Caltech scientists were ruminating on the implications of the thin carbon dioxide (CO2) Martian atmosphere first revealed by Mariner IV, a NASA fly-by spacecraft built and flown by JPL. They theorized that Mars, with such an atmosphere, could have a long-term stable polar deposit of CO2 ice that, in turn, would control global atmospheric pressure.

  • Dust storms swirl at Mars’ north pole
    Dust storms swirl at Mars’ north pole

    Over the last month, ESA’s Mars Express has been watching dust storms brew at the planet’s north pole and disperse toward the equator.

  • Evidence of ice age at Martian north pole
    Evidence of ice age at Martian north pole

    Using radar data collected by NASA’s Mars Reconnaissance Orbiter, a Southwest Research Institute-led team found evidence of an ice age recorded in the polar deposits of Mars. Ice ages on Mars are driven by processes similar to those responsible for ice ages on Earth, that is, long-term cyclical changes in the planet’s orbit and tilt, which affect the amount of solar radiation it receives at each latitude.

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