NASA launches moon rocket Artemis 1

The Space Launch System rocket and Orion crew spacecraft exited Pad 39B at NASA's Kennedy Space Center in Florida at 4:12 a.m. EDT (812 GMT) on Saturday (July 2).

The two arrived at KSC's Vehicle Assembly Building (VAB) at 2:30 p.m. EDT (1830 GMT), completing the 4-mile (6.4-kilometer) excursion in a little over 10 hours.

Artemis 1 has completed its "wet dress rehearsal," a set of tests and simulations to establish flight readiness.

The Artemis 1 crew originally sought to hit the milestone in April but was hindered by a blocked valve. 

NASA officials considered the last attempt good enough to start prepping Artemis 1 for launch despite a hydrogen leak.

The mission team is aiming late August or early September for liftoff, but a formal date won't be confirmed until SLS and Orion are examined at the VAB.