This handout image released by NASA on May 11, 2021 shows NASA’s James Webb Space Telescope undergoing tests at Northrop Grumman in Redondo Beach, California. – The world’s largest and most powerful space telescope ever built unfolded its giant golden mirror for the last time on Earth on May 11, a key milestone before the $10 billion observatory is launched later this year. The 21 feet 4 inch (6.5 meter) mirror was commanded to fully expand and lock itself into place, NASA said — a final test to ensure it will survive its million-mile (1.6 million kilometer) journey and is ready for its quest to discover the origins of the Universe. (Photo by Chris GUNN / NASA / AFP) / RESTRICTED TO EDITORIAL USE – MANDATORY CREDIT “AFP PHOTO / NASA / CHRIS GUNN ” – NO MARKETING – NO ADVERTISING CAMPAIGNS – DISTRIBUTED AS A SERVICE TO CLIENTS