NASA scientists got together Wednesday (July 29) to share a status update on the Nancy Grace Roman Space Telescope — the agency's next great observatory that will soon join the ranks of absolute legends like the Hubble Space Telescope and the James Webb Space Telescope . The $4 billion Roman Space Telescope is scheduled to launch on a SpaceX rocket on Aug. 30 at 7:26 a.m. EDT (1126 GMT). The Roman Space Telescope hangs in the clean room. To compare Roman to the Hubble Space Telescope , consider that scientists expect Roman to produce over 500 terabytes of data per year. While the Roman Space Telescope does have some near-infrared capabilities, thanks to its impressive Wide-Field Instrument (WFI).