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    ESA-Roscosmos ExoMars Trace Gas Orbiter tagged posts

    Sun: Scientists detect Water Vapour Emanating from Mars

    February 12, 2021, Categories  Astronomy/Space

    Scientists detect water vapour emanating from Mars
    The ESA-Roscosmos ExoMars Trace Gas Orbiter studies water vapour and its components as it rises through the atmosphere and out into space. By looking specifically at the ratio of hydrogen to its heavier counterpart deuterium, the evolution of water loss over time can be traced. Credit: (C) ESA

    Researchers said Wednesday they had observed water vapour escaping high up in the thin atmosphere of Mars, offering tantalising new clues as to whether the Red Planet could have once hosted life.

    The traces of ancient valleys and river channels suggest liquid water once flowed across the surface of Mars. Today, the water is mostly locked up in the planet’s icecaps or buried underground.

    But some of it is vaporising, in the form of hydrogen leaking from the atmosphere, according to the new r...

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