Video: Falcon 9 stands at the launch pad

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.

SpaceX scrubbed the launch of its next Starship test rocket Friday afternoon, and the the next opportunity for the atmospheric test flight is now expected Tuesday. SpaceX plans to launch and land the rocket at company’s South Texas development complex after losing three previous prototypes in explosions.

SpaceX test-fired nine Merlin engines Saturday before the company’s next launch from Cape Canaveral, clearing a key readiness test before liftoff as soon as Sunday night with 60 more Starlink internet satellites.