Teams continue launch preparations on the SpaceX Falcon Heavy that will launch NASA's Nancy Grace Roman Space Telescope, inside the SpaceX hangar at Launch Complex 39A at Kennedy Space Center in Florida on Wednesday, Aug. 26, 2026. The rocket has 27 Merlin engines on its first stage and can generate more than five million pounds of thrust at liftoff. NASA and SpaceX are targeting launch no earlier than 7:26 a.m. EDT Sunday, Aug. 30, from Kennedy.

Teams continue launch preparations on the SpaceX Falcon Heavy that will launch NASA's Nancy Grace Roman Space Telescope, inside the SpaceX hangar at Launch Complex 39A at Kennedy Space Center in Florida on Wednesday, Aug. 26, 2026. The rocket has 27 Merlin engines on its first stage and can generate more than five million pounds of thrust at liftoff. NASA and SpaceX are targeting launch no earlier than 7:26 a.m. EDT Sunday, Aug. 30, from Kennedy.

Teams continue launch preparations on the SpaceX Falcon Heavy that will launch NASA's Nancy Grace Roman Space Telescope, inside the SpaceX hangar at Launch Complex 39A at Kennedy Space Center in Florida on Wednesday, Aug. 26, 2026. The rocket has 27 Merlin engines on its first stage and can generate more than five million pounds of thrust at liftoff. NASA and SpaceX are targeting launch no earlier than 7:26 a.m. EDT Sunday, Aug. 30, from Kennedy.