Voyager 1 becomes 1st craft to leave solar system
Voyager 1 has crossed a new frontier, becoming the first spacecraft ever to leave the solar system, NASA said Thursday.


Thirty-six years after it was launched from Earth on a tour of the outer planets, the plutonium-powered spacecraft is more than 11 1/2 billion miles from the sun, cruising through what scientists call interstellar space -- the vast, cold emptiness between the stars, the US space agency said. (AP)