NASA has confirmed it is turning off key instruments on Voyager 1 and Voyager 2, leaving just three science instruments in operation on each spacelab. The reason: to prolong the lives of the spacecraft,

The twin probes should operate for about a year before the team is forced to shut off yet more instruments. The Voyager spacecraft have been cruising through interstellar space for more than 47 years,

NASA’s twin Voyager probes, which launched in 1977, are the longest-running missions to send data home. But as their power supplies wane, scientists are saying goodbye to one instrument on each spacec