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Vote Now! Best Space Stories of the Week - March 24, 2013

Why Voyager 1's Solar System Exit Is So Hard to Predict

NASA/JPL-Caltech/The Johns Hopkins University Applied Physics Laboratory

NASA's Voyager 1 probe is tantalizingly close to the edge of the solar system, but predicting when it will finally pop free into interstellar space is a challenging proposition, mission team members say. [Full Story]

NEXT: Slumbering Sun Wakes Up This Year

Slumbering Sun Should Wake Up This Year


The sun should roar back to life sometime in 2013, producing its second activity peak in the last two years, scientists say. [Full Story]

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