NASA timelapse video of the core stage stacking for the Artemis I Mission released 15 June 2021.
Artemis I is the first in a series of increasingly complex missions that will enable human exploration to the Moon and Mars.
https://youtu.be/5n8AY-k-Su4
The Artemis I mission map :-
https://www.nasa.gov/sites/default/f...20210315_1.jpg