Live coverage: Dragon cargo capsule returns to Earth

Expertise, input and advice from seasoned NASA engineers will improve SpaceX’s chances of nailing the first commercial landing on Mars as soon as late 2018, a senior space agency official said Wednesday, but Elon Musk’s space transport company will likely seek more independence from U.S. government support on later expeditions to the red planet.

A United Launch Alliance Delta 4-Heavy rocket lifted off from Vandenberg Air Force Base in California at 1:47 p.m. PDT (4:47 p.m. EDT; 2047 GMT) Monday with a classified satellite for the National Reconnaissance Office, the U.S. government’s spy satellite agency.

Rocket Lab’s Electron commercial satellite launcher lifted off from New Zealand on its debut test flight Thursday and soared into space on its maiden mission.