NASA has finished stacking the twin Space Launch System solid rocket boosters for Artemis III inside High Bay 3 of the Vehicle Assembly Building at Kennedy Space Center, and all four RS-25 engines are now installed on the core stage. The agency posted the status update on 13 October, pointing to a coming "short stack" tanking test at Launch Pad 39B and more crew rehearsals.

Photo: NASA/Ben Smegelsky (public domain)