Watch a live view of SpaceX’s Cape Canaveral launch pad (members only)

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.

Watch a time-lapse video of the 229-foot-tall (70-meter) Falcon 9 rocket being lifted into place on pad 39A in readiness for the launch of the SES 10 communications satellite. This will be a major milestone for SpaceX as it will mark the first time a flown Falcon 9 first stage has been reused.

NASA has released new target dates for test flights of commercial crew capsules in development by SpaceX and Boeing, with unpiloted demo missions by SpaceX’s Crew Dragon and Boeing’s CST-100 Starliner spaceships now scheduled for January and March, followed by crewed orbital missions in mid-2019.