NASA to try Artemis I launch on Saturday

Artemis is going for try number two. NASA will try again Saturday to launch the inaugural flight in the Artemis mission.

It was first planned for Monday morning but had to be scrubbed when the team had trouble cooling one of the rocket's four engines. Engineers have now made some changes to the propellant loading procedure and are ready to try again.

This first flight is an unmanned mission to test NASA's newest space system, which is slated to land another astronaut on the moon for the first time in more than 50 years. It will be the first time the agency has used its "Space Launch System" heavy rocket. That rocket has been in development for more than a decade.

It's intended to replace the space shuttle as NASA's primary space exploration craft, though it can go much further into space.