NASA's Space Launch System rocket is scheduled to launch on August 29, taking the Orion capsule on its mission to the moon.
The SLS rocket and Orion have undergone critical tests to ensure they're ready for liftoff.
The mission, Artemis 1, is an uncrewed flight test before flying astronauts in future missions.
Eventually, NASA plans to use the new rocket, called the Space Launch System (SLS), to set up a permanent base on the moon.
"This is now the Artemis generation," Bill Nelson, NASA's administrator, said at a press briefing on August 3.