Why Is It Taking So Long For NASA To Launch Artemis I?

Watch VideoNASA has spent weeks preparing to launch its Artemis I rocket. It will be a key first step in U.S. efforts to embark on a manned mission to the moon in 2025.

This mission has two big new things: one is that it's committed to putting the first woman and first person of color on the moon, and the other is that NASA...