After 42 years, the Voyager 1 & 2 spacecraft are still flying! To keep them going, engineers must manage these vintage robots carefully as less power is available over time. Recently, our team turned off a heater for Voyager 2’s instrument that detects fast-moving cosmic ray particles. Despite dropping to a chilly -74°F, Voyager 2’s cosmic ray instrument is still returning data. Learn more about how we keep our oldest explorers going: https://go.nasa.gov/2NW576P | NASA - National Aeronautics and