Solar particle dip hints at Voyager's exit from solar system
Monday, August 13, 2012 - 3:00 AM

Scientists who have for years been closely following Voyager 1's slow drift into the interstellar region of the Milky Way had a false alarm last month when the 35-year-old spacecraft measured a drop in solar particles that they were sure was a sign it had finally exited our solar system.
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