After Artemis 1, it will take NASA 2 years to send astronauts to the moon. Why so long?

With Artemis 1 now in the books, the focus is quickly shifting to the Artemis program's next phase: crewed flight. But that can't happen until several pieces fall into place.

After Artemis 1, it will take NASA 2 years to send astronauts to the moon. Why so long?
With Artemis 1 now in the books, the focus is quickly shifting to the Artemis program's next phase: crewed flight. But that can't happen until several pieces fall into place.