Live coverage: Three Chinese astronauts return to Earth

A United Launch Alliance Atlas 5 rocket lifted off Friday from Vandenberg Air Force Base in California with a classified payload for the National Reconnaissance Office. Launch occurred at 7:19 p.m. PST (10:19 p.m. EST; 0319 GMT).

NASA is taking steps to rein in costs, emphasizing bonds with private sector companies, and signaling it might be open to a future where the agency’s flagship Orion deep space capsule and Space Launch System are no longer necessary to explore deep space, at least in their current forms.

Rocket Lab’s first launch of the year lifted off Thursday at 7:27 p.m. EDT (2327 GMT) after a four-day delay to replace a video transmitter and wait for improved weather. The company’s Electron rocket launched from Mahia Peninsula on New Zealand’s North Island with a technology demonstration satellite for DARPA, the U.S. military research and development agency.