NASA shuts down NEOWISE asteroid hunter after almost 15 years in space NASA's NEOWISE spacecraft turned off its transmitter for good on Aug. 8, wrapping up its prolific asteroid-hunting career. https://cdn.mos.cms.futurecdn.net/8hkRUv8Q5tospge6vKJrP3.jpg https://www.space.com/nasa-shuts-down-neowise-asteroid-hunting-spacecraft