NASA's New Horizons probe has woken up in good health nearly 6 billion miles away beyond Pluto after spending nearly a year in hibernation.
Traveling such vast distances between our solar system's most remote objects means New Horizons often cruises for months at a time with little to do other than passively collect data. During these periods, the probe goes into a hibernation mode in which its instruments still collect data, but most other systems power down.
