Watch the Falcon 9 launch from pad 39A

Mike Suffredini, manager of NASA’s International Space Station program, is stepping down after 10 years overseeing the lab’s final assembly and transition to post-shuttle operations, the agency said Wednesday. Kirk Shireman, deputy director of the Johnson Space Center, will take over as program manager.

Stymied by Russian government dithering that has indefinitely grounded a launch on a modified Soviet-era missile, Iridium officials say that SpaceX agreed to move up to July the first of seven Falcon 9 launches from California with the company’s next-generation mobile communications satellites.

The NROL-149 mission was the sixth and final mission of the year supporting the agency’s proliferated architecture. Liftoff from pad 4 East at Vandenberg Space Force Base happened at 5:19 a.m. PST (8:19 a.m. EST, 1319 UTC).