Time lapse of the stacking of the Orion spacecraft on top of the fully assembled Space Launch System (SLS) rocket at NASA’s Kennedy Space Center in Florida, on 21 October 2021, in preparation for the uncrewed Artemis I launch.

For Artemis I, the European Service Module will take the spacecraft more than 64 000 km beyond the Moon in a test flight to demonstrate its capabilities.

The European Service Module is ESA’s contribution to NASA’s Orion spacecraft that will send astronauts to the Moon and beyond. It provides electricity, water, oxygen and nitrogen as well as keeping the spacecraft at the right temperature and on course.