Live coverage: Soyuz crew lands in Kazakhstan

Running several days late after a series of technical and weather delays, a Falcon 9 rocket lifted off from Vandenberg Air Force Base in California at 6:17 a.m. PST (9:17 a.m. EST; 1417 GMT) with the Spanish-owned Paz radar observation satellite and two prototype payloads for SpaceX’s planned Starlink broadband satellite network.

SpaceX is on schedule to fly two NASA astronauts on a test flight to the International Space Station by the end of 2017, but there is a lot of work to do to ensure the company’s new Crew Dragon spaceship is up to the task and ready in time, a SpaceX manager said Tuesday.

A United Launch Alliance Atlas 5 rocket blasted off at 6:18 a.m. EDT (1018 GMT).to deploy the Navy’s fourth MUOS satellite that will expand coverage to encompass the globe with mobile communications.