The Artemis II rocket on its launch pad at NASA's Kennedy Space Center, the day before the first launch window.

The nearly 100-metre tall Space Launch System rocket will propel the Orion spacecraft and its crew of four astronauts into space. Once in space, ESA's European Service Module will take over, providing air and water for the astronauts, as well as electricity, and propelling the spacecraft in deep space with its 33 engines.

The first launch window opens on 1 April 18:24 local time (2 April 00:24 CEST).