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Voyager 1 Has Left the Solar System

Voyager 1 appears to have at long last left our solar system and entered interstellar space, says a University of Maryland-led team of researchers

Voyager 1 appears to have at long last left our solar system and entered interstellar space, says a University of Maryland-led team of researchers. (Credit: NASA)

 

Carrying Earthly greetings on a gold plated phonograph record and still-operational scientific instruments — including the Low Energy Charged Particle detector designed, built and overseen, in part, by UMD’s Space Physics Group — NASA’s Voyager 1 has traveled farther from Earth than any other human-made object. And now, these researchers say, it has begun the first exploration of our galaxy beyond the Sun’s influence.

“It’s a somewhat controversial view, but we think Voyager has finally left the Solar System, and is truly beginning its travels through the Milky Way,” says UMD research scientist Marc Swisdak, lead author of a new paper published online this week in The Astrophysical Journal Letters. Swisdak and fellow plasma physicists James F. Drake, also of the University of Maryland, and Merav Opher of Boston University have constructed a model of the outer edge of the Solar System that fits recent observations, both expected and unexpected.

Read more:  http://www.sciencedaily.com/releases/2013/08/130815133726.htm

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