The InSight spacecraft approaches Mars in this artist's concept.

Interior Exploration using Seismic Investigations, Geodesy and Heat Transport, or InSight, is a Mars lander that probes the planet's deep interior to shed light on the evolution of Mars and the rocky planets of the solar system.

There are six phases in the InSight mission: Pre-Launch, Launch, Cruise, Approach, Landing and Surface Operations. The approach phase begins about 60 days before the spacecraft enters the Martian atmosphere and prepares the spacecraft for landing.

NASA's Jet Propulsion Laboratory, a division of Caltech in Pasadena, California, manages the InSight Project for NASA's Science Mission Directorate, Washington. Lockheed Martin Space, Denver, Colorado built the spacecraft. InSight is part of NASA's Discovery Program, which is managed by NASA's Marshall Space Flight Center in Huntsville, Alabama.

For more information about the mission, go to https://mars.nasa.gov/insight.