so it could blow onto the solar panels and scour them clean. NASA determined in May 2022 that there was too much dust on the panels to continue the mission. InSight was generating only one-tenth of the power from the sunlight than it did upon arrival. They put the lander in a low-power mode in July 2022 to continue monitoring for seismic events. NASA continued to monitor InSight until the end of 2022, when the spacecraft missed two consecutive communication attempts Science background Seismic vibrations Both Viking spacecraft carried seismometers mounted on their landers, and in 1976 it picked up vibrations from various operations of the lander and from the wind. However, the Viking 1 lander's seismometer did not deploy properly and did not unlock; the locked seismometer could not operate. The Viking 2 seismometer unlocked; it operated and returned data to Earth. One problem was accounting for other data. On Sol 80, the Viking 2 seismometer detected an event. No wind data were recorded at the same time, so it was not possible to determine whether the data indicated a seismic event or wind gust. Other lacking data would have been useful to rule out other sources of vibrations. Two other problems were the location of the lander and that a certain level of wind on Mars caused a loss of sensitivity for the Viking 2 seismometer. To overcome these and other issues, InSight had many other sensors, was placed directly on the surface, and also had a windshield. Despite the difficulties, the Viking 2 seismometer readings were used to estimate a Martian geological crust thickness between at the Viking 2 lander site. The Viking 2 seismometer did detect vibrations from Mars winds complementing the meteorology results. There was the aforementioned candidate for a possible marsquake, but it was not particularly definitive. The wind data did prove useful in its own right, and despite the limitations of the data, widespread and large marsquakes were not detected. Seismometers were also left on the Moon, starting with Apollo 11 in 1969, and also by Apollo 12, 14, 15 and 16 missions and provided many insights into lunar seismology, including the discovery of moonquakes. The Apollo seismic network, which was operated until 1977, detected at least 28 moonquakes up to 5.5 on the Richter scale. One of the aspects of the InSight mission was to compare the Earth, Moon, and Mars seismic