A SpaceX Falcon 9 rocket - carrying the NROL-76 payload for the NRO - sits on the launch pad April 29 at Launch Complex 39A. The rocket will have to wait at least 24 hours for liftoff after SpaceX scrubbed the launch planned for April 30 due to an issue with a first-stage sensor. Credit: SpaceX
Behnken Starliner
Stage after landing
Dragon after splashdown
SLS versus Falcon Heavy
Falcon heavy launch
F9 LC-39A launch
LC-39A from press site
Falcon on LC-39A
SpaceX hangar 39A
An unmanned SpaceX Dragon cargo ship is released back into space by a robotic arm on the International Space Station on Aug. 26. The Dragon will return  1,360 kilograms of science gear to Earth. Credit: NASA TV
A SpaceX dragon cargo spacecraft is grappled by the station's robotic arm. Credit: NASA
SpaceX timelapse
Falcon 9 launch
Soyuz MS-01 crew