This behind-the-scenes look at what goes into building and preparing a rover for Mars, including extensive tests in simulated space environments, was captured from March to July 2019.

A newly installed webcam offers the public a live, bird's-eye view of NASA's Mars 2020 rover as it takes shape at NASA's Jet Propulsion Laboratory in Pasadena, California. You can watch as JPL engineers and technicians assemble and test the rover before it embarks next year on one of the most technologically challenging interplanetary missions ever designed. NASA's Mars 2020 Perseverance rover will look for signs of past microbial life, cache rock and soil samples, and prepare for future human exploration. August 28, 2019 See NASA’s next Mars rover quite literally coming together inside a clean room at the Jet Propulsion Laboratory.