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Sep 9 / Dave Schumaker

Mars – Icier / More Active Than Thought

Two separate studies that were picked up via Physorg. Scientists believe that an ice belt may have encompassed Mars’ equator at one point in history. A NASA scientist says patterns of glacial activity on the planet may be a relic of an ancient belt of ice that formed about five million years ago due to a change in the tilt of Mars. That shift caused moisture from the poles to be deposited as snow at the equator. The second study questions the age of some volcanic features on Mars, implying that they may be much younger than previously thought, or possibly even active today. The cones, seen in images from Europe’s Mars Express space probe, have no blemishes from impact craters, suggesting the volcanoes erupted very recently and the site could have ongoing volcanism, the BBC reported Tuesday.

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