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Out there: NASA says its Voyager 1 probe has become first spacecraft to leave the solar system
By Associated Press, Updated: Thursday, September 12, 2:40 PM
LOS ANGELES — 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 probe is more than 11 1/2 billion miles from the sun, cruising through interstellar space — the vast, cold emptiness between the stars, the space agency said.
Voyager 1 actually made its exit more than a year ago, according to NASA. But itÂ’s not as if thereÂ’s a dotted boundary line or a signpost out there, and it was not until recently that scientists with the space agency had enough evidence to say that the probe had finally plowed through the hot plasma bubble surrounding the planets and escaped the sunÂ’s influence.
http://www.washingtonpost.com/busin...a9b094-1bd4-11e3-80ac-96205cacb45a_story.html
By Associated Press, Updated: Thursday, September 12, 2:40 PM
LOS ANGELES — 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 probe is more than 11 1/2 billion miles from the sun, cruising through interstellar space — the vast, cold emptiness between the stars, the space agency said.
Voyager 1 actually made its exit more than a year ago, according to NASA. But itÂ’s not as if thereÂ’s a dotted boundary line or a signpost out there, and it was not until recently that scientists with the space agency had enough evidence to say that the probe had finally plowed through the hot plasma bubble surrounding the planets and escaped the sunÂ’s influence.
http://www.washingtonpost.com/busin...a9b094-1bd4-11e3-80ac-96205cacb45a_story.html