Roman Space Telescope launch window opens Aug. 30 on Falcon Heavy

NASA has announced coverage plans for prelaunch and launch activities of the Nancy Grace Roman Space Telescope. Roman is NASA’s next-generation observatory designed to explore some of the universe’s biggest mysteries, including dark energy. NASA and SpaceX are targeting liftoff for no earlier than 7:26 a.m. EDT Sunday, Aug. 30, aboard a SpaceX Falcon Heavy from Florida.

Roman sits in a line of flagship observatories aimed at questions that require wide, deep surveys rather than single-target instruments. Dark energy is explicitly named among the mission’s science goals, placing the launch in the broader timeline of cosmology and large-scale structure research.

Practical takeaway for observers: confirm NASA’s official coverage schedule for the Aug. 30 no-earlier-than window and watch for weather or range updates that could shift Falcon Heavy’s launch time. The prelaunch broadcast is the checkpoint before Roman leaves the pad on the stated Florida ascent.