NASA`s Voyager 1 probe has crossed this important border, making history as the first human-made object to leave the heliosphere, the magnetic boundary separating the solar system`s sun, planets and ... more 
NASA`s Voyager 1 probe has crossed this important border, making history as the first human-made object to leave the heliosphere, the magnetic boundary separating the solar system`s sun, planets and solar wind from the rest of the galaxy. less 
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KSWB - San Diego
Fri, Sep 13, 2013 1:56 AM EDT