Scientists are a step closer to solving a 40-year-old mystery about some unusual looking craters on Mars.
via Discovery News http://news.discovery.com/space/astronomy/mars-landslides-spawned-by-craters-130901.htm#mkcpgn=rssnws1
via Discovery News http://news.discovery.com/space/astronomy/mars-landslides-spawned-by-craters-130901.htm#mkcpgn=rssnws1
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