Mars 2020 spacecraft being prepared for a thermal vacuum (TVAC) test in the Space Simulator Facility at NASA's Jet Propulsion Laboratory, Pasadena, California, USA. The Mars 2020 mission, part of NASA'S Mars Exploration Program, launched on 30th July 2020. It carried the Perseverance rover and Ingenuity helicopter. The rover will search for habitable conditions in the ancient past and signs of past microbial life on Mars. The helicopter will test the first powered flight on Mars. Photographed on 9th May 2019.