The InSight mission will place a lander on Mars that will deploy a seismometer and a heat-flow probe, along with cameras, a magnetometer,a meteorology experiment, and a radio science experiment.

The lander builds on the proven design of NASA's Mars Phoenix lander. InSight's robotic arm is over 5 feet 9 inches (1.8 meters) long. It lifts a seismometer and heat flow probe from the deck and places them on the surface. The camera on the arm will provide color 3D views of the landing site, instrument placement, and activities. Sensors measure weather and magnetic field variations.