The Wide-field Infrared Survey Explorer, which surveyed the whole sky in infrared light. After its coolant ran out it was revived as NEOWISE to find and track asteroids and comets near the Earth.
Milestones
Swipe the timeline to see it all, and tap an event to open it.
Launch14 Dec 2009Sky survey begins14 Jan 2010Woken up as NEOWISE19 Dec 2013Switched off8 Aug 2024
.jpg){kind=link}