Thursday, January 20, 2011

Asteroid Strikes May Have Killed Mars' Magnetic Field

Once upon a time, Mars had a magnetic field, just like Earth. Four billion years ago, it vanished, taking with it the planet's chances of evolving life as we know it. Now scientists have proposed a new explanation for its disappearance.


Source: http://feeds.wired.com/~r/wired/index/~3/0bJKYdJwVvI/

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