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Engineers Marleen Sundgaard (left) and Pranay Mishra measure their test lander's "workspace" -- the terrain where scientists want to set InSight's instruments -- at NASA's Jet Propulsion Laboratory in Pasadena, California. Making sure each feature of the workspace on Mars is mimicked here on Earth allows for more reliable tests to be performed before actually setting down InSight's instruments.

JPL, a division of Caltech in Pasadena, California, manages InSight for NASA's Science Mission Directorate in Washington. InSight is part of NASA's Discovery Program, managed by the agency's Marshall Space Flight Center in Huntsville, Alabama. The InSight spacecraft was built and tested by Lockheed Martin Space in Denver, Colorado.