Live coverage: Kennedy Space Center to reopen Friday

Rocket Lab announced this week it has added two more nanosatellites to the first operational launch of the company’s Electron rocket, which is now scheduled to take off from New Zealand no earlier than Nov. 10, U.S. time, after a multi-month delay to resolve a technical problem.

On its third flight Monday night, SpaceX’s Falcon Heavy rocket will fly to three different orbits with two dozen spacecraft on a mission set to last more than six hours, prompting SpaceX founder Elon Musk to declare it the company’s “most difficult launch ever.”

Equipped with a robot arm, sample collector and return capsule, NASA’s asteroid-bound OSIRIS-REx probe emerged from its pristine factory and flew to the launch site in Florida on Friday.