NASA confirmed this week that the Nancy Grace Roman Space Telescope will launch on August 30, nine months ahead of schedule, from Kennedy Space Center. The telescope carries a roughly 300-megapixel wide-field camera that captures images 100 times larger than the Hubble Space Telescope's widest exposures. The mission's headline instrument — a first-of-its-kind active coronagraph with shape-shifting mirrors — will attempt to erase starlight in space with...