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Science Has Voyager 1 left the solar system? Probably not, but it's close.

NASA scientists say that the Voyager 1 spacecraft, launched in 1977, is still inside our solar system. But the probe's radiation sensors indicate that it has entered a new region of space.

By Nancy AtkinsonUniverse Today / March 21, 2013

NASA/JPL/Walt Feimer

A new paper out today reports that the Voyager 1 spacecraft appears to have traveled beyond the influence of the Sun and exited the heliosphere. However, the data they cite is the same as what NASA Voyager scientists claimed in December 2012 was just a new region at the edge of the solar system that scientists previously didn’t know was there. They called it a “highway” of magnetic particles, shepherding Voyager 1 out into interstellar space, whereas the new paper put out by the American Geophysical Union says Voyager 1 has crossed a “heliocliff” and into interstellar space.