More About These Missions
NASA JPL, which is managed for the agency by Caltech in Pasadena, California, built Mariner 4, the Viking 1 and 2 orbiters, Pathfinder, Sojourner, Spirit and Opportunity, Curiosity, Perseverance, and Ingenuity. It continues to operate Curiosity and Perseverance.
Lockheed Martin Space in Denver built MRO and supports its operations, while JPL manages the mission. The University of Arizona, in Tucson, operates HiRISE, which was built by BAE Systems, in Boulder, Colorado.
The Viking 1 and 2 landers were built by Martin Marietta; the Viking program was managed by NASA’s Langley Research Center in Hampton, Virginia. JPL led operations for the Viking landers and orbiters.