JPL on the Red Planet
Jet Propulsion Laboratory https://www.jpl.nasa.gov/ July 8, 2025
WATSON, part of an instrument called SHERLOC (Scanning Habitable Environments with Raman & Luminescence for Organics & Chemicals), was built by Malin Space Science Systems (MSSS) in San Diego and is operated jointly by MSSS and JPL in Southern California.
JPL, which is managed for the agency by Caltech, built and manages operations of the Perseverance rover.
For more about Perseverance: mars.nasa.gov/mars2020/