On Pluto's doorstep, NASA's New Horizons spacecraft awakens for encounter
Monday, December 8, 2014 - 12:00
in Astronomy & Space
After a voyage of nearly nine years and three billion miles—the farthest any space mission has ever traveled to reach its primary target—NASA's New Horizons spacecraft came out of hibernation on Dec. 6 for its long-awaited 2015 encounter with the Pluto system.