Rocket delivered to launch site for first human flight to the Moon since 1972

The core is the backbone of SLS, and it's the backbone of the Artemis mission. We've been waiting for the core to get here because all the integrated tests and checkouts that we do have to have the core stage. It has the flight avionics that drive the whole system.

The boosters are also important, but the core is really the backbone for Artemis. So it's a big day.

Read at Ars Technica