Giant crater explains strange shape of Mars - Reuters

Giant crater explains strange shape of MarsReuters - 3 hours agoWASHINGTON (Reuters) - A giant crater made by an asteroid or comet explains why Mars is so lopsided, with a basin on one hemisphere and  high terrain on the other, three separate teams of scientists said on Wednesday.New theory on the two faces of Mars: gigantic solar collision San Francisco ChronicleMassive Asteroid Caused Mars to Appear Deformed Forever dBTechnoNational Geographic - Vancouver Sun - San Diego Union Tribune - AOL Canadaall 230 news articles

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