从间谍卫星到宇宙之眼：罗曼太空望远镜的传奇

A former surveillance telescope is NASA's new powerhouse for solving the mysteries of dark energy and dark matter BY JONATHAN O'CALLAGHAN The Nancy Grace Roman Space Telescope is prepared for launch in a clean room at the NASA Goddard Space Flight Center in Greenbelt, Md. ALAN DRESSLER STARED IN AWE at the line of Hubble telescopes stretching out in front of him. It took NASA two decades to design and build its own Hubble Space Telescope, which transformed our understanding of the galaxies and stars after its 1990 launch. Now, standing inside a New York defense contractor's clean room in 2012, Dressler faced an assembly line of Hubble clones. They weren't astronomy telescopes. They were spy satellites of equal capability. …