From spy satellite to space telescope: The unlikely origins of NASA's Roman Space Telescope

The Nancy Grace Roman Space Telescope, an upcoming NASA mission, began its life as a repurposed spy satellite. The telescope's Optical Telescope Assembly, which houses its primary mirror and other crucial components, originally came from the Optical Telescope Assembly of two donated space telescopes from the National Reconnaissance Office (NRO).

The NRO built these telescopes as part of the Future Imagery Architecture program in the late 1990s and early 2000s, but the project ultimately failed due to high costs. In 2012, the NRO donated the unused telescopes to NASA, providing the Roman Space Telescope project with a significant cost-saving opportunity. While the donated hardware did require some modifications, including the replacement of electronics, it ultimately proved to be a valuable resource.

Despite the unexpected origin of its technology, the Roman Space Telescope has remained on schedule and on budget, positioning itself to uncover mysterious aspects of the universe as it launches this upcoming Sunday, August 30, aboard a SpaceX Falcon Heavy rocket.