NASA's Nancy Grace Roman Space Telescope pictured on Friday, August 7, 2026, after engineers and technicians working inside the Payload Hazardous Servicing Facility at NASA’s Kennedy Space Center in Florida had carefully mated the observatory to its payload adapter and a strut payload attach fitting, a specialized piece of hardware designed for large, heavy loads. This allows the team to secure the payload to the second stage on SpaceX’s Falcon Heavy rocket. Image: Kennedy Space Center / NASA.图:popsci.com