With the backshell that will help protect the Mars 2020 rover during its descent into the Martian atmosphere visible in the foreground, a technician on the project monitors the progress of Systems Test 1. Over two weeks in January 2019, 72 engineers and technicians assigned to the 2020 mission took over the High Bay 1 cleanroom in JPL's Spacecraft Assembly Facility to put the software and electrical systems aboard the mission's cruise, entry capsule, descent stage and rover through their paces. https://photojournal.jpl.nasa.gov/catalog/PIA22966
Album Mars_2020_Perseverance