The United States Space Force 51 (USSF-51) mission was the 58th and final time an Atlas 5 rocket launches a national security payload. Liftoff happened at Tuesday, July 30, during a three-hour window that opens at 6:45 a.m. EDT (1045 UTC).
The mission will complete a back-to-back schedule for SpaceX on Sunday morning. Liftoff from SLC-4E happened at 2:22 a.m. PDT (5:22 a.m. EDT, 0922 UTC).
The overnight launch marked the second Falcon 9 flight since the July 11 mishap that grounded the rocket. Liftoff happened at 1:09 a.m. EDT (0509 UTC).
The mission will mark the 100th national security flight for United Launch Alliance and the 101st Atlas 5 rocket launch. Liftoff is targeting Tuesday, July 30, during a three-hour window that opens at 6:45 a.m. EDT (1045 UTC).
The rocket launched more than 340 times successively and successfully before it encountered an issue with its upper stage on July 11. Liftoff of the Starlink 10-9 mission happened at 1:45 a.m. EDT (0545 UTC).
Watch live as NASA holds briefings at the Johnson Space Center in Houston on the upcoming Crew 9 mission and SpaceX rolls out a Falcon 9 as it prepares to return to flight with its workhorse rocket.
Critical tests are on tap this weekend to confirm Boeing’s Starliner capsule can safety carry its two-person crew back to Earth despite unexpected helium leaks and degraded maneuvering thrusters, officials said Thursday.
The update comes after NASA said it and Boeing completed ground hot fire testing of a reaction control system (RCS) to better understand some of the in-flight anomalies seen during the spacecraft’s rendezvous and docking with the International Space Station.
An upper stage anomaly during the Starlink 9-3 mission on July 11 grounded the Falcon 9 rocket. The FAA is evaluating SpaceX’s request for a public safety determination to resume launches.
The massive 212-foot-long core stage of the Space Launch System rocket arrived at NASA’s Kennedy Space Center late Tuesday morning. Rollout to the VAB is set to begin around 9 a.m. EDT on Wednesday.