InSight (Interior Exploration using Seismic Investigations, Geodesy and Heat Transport) is a NASA Mars mission consisting of a single lander. It will use sophisticated geophysical instruments to investigate the red planet’s interior. The data collected by InSight may help scientists understand how the terrestrial planets formed.
The artist concept shows the lander with its heat-flow probe and seismometer. The probe, contributed by the German Aerospace Center (DLR), is designed to hammer itself 3 to 5 meters (about 16 feet) deep in order to monitor heat from the planet's interior. The seismometer, contributed by the French space agency Centre National d'Etudes Spatiales (CNES), will measure distant marsquakes while providing detailed information about the planet’s interior structure.
Scheduled for March 2016, the mission launch date was postponed due to issues with the seismometer. It will be at least two years (2018) before the next available launch window because of the relative positions of the planets.