In a mission update, NASA said the control team at the Jet Propulsion Laboratory failed to contact the lander in two consecutive attempts — which had previously been set as the criterion for ending the mission. Dust had been building up on the probe’s solar panels, and mission planners concluded that the batteries finally ran out of power. The last time NASA heard from Mars InSight was on Dec. 15.
JPL’s Deep Space Network will continue to listen for signals from the spacecraft, but further contact is considered unlikely.
Those involved in the mission chose to concentrate on InSight’s achievements rather than its setbacks. InSight’s primary purpose was to record seismic readings emanating from the Red Planet’s interior. The mission detected 1,319 Marsquakes in all, including quakes caused by meteor impacts. In May, the spacecraft’s seismometer recorded the largest quake ever detected on a planet other than Earth.