In this illustration, NASA's Perseverance Mars rover uses the Planetary Instrument for X-ray Lithochemistry (PIXL). Located on the turret at the end of the rover's robotic arm, the X-ray spectrometer will help search for signs of ancient microbial life in rocks.
Both PIXL and Perseverance were built and are operated by NASA's Jet Propulsion Laboratory in Southern California.
For more information about the mission, go to https://mars.nasa.gov/mars2020/.