ESA said in a statement that the Artemis 4 Orion service module would begin its journey across the Atlantic Ocean "in a few days" to head to NASA's Kennedy Space Center for further integration. In 2021, ESA paid a consortium of European companies 650 million euros ($791 million) to produce Orion service modules for Artemis missions 4, 5 and 6.

American space agency NASA and space company L3Harris announced they've conducted a test firing of the second new RS-25 engine meant for Artemis V

HANCOCK COUNTY, Miss. (WLOX) - NASA and L3Harris Technologies successfully conducted a full-duration hot fire test of a second RS-25 engine at Stennis Space Center in Hancock County. The engine will support the Space Launch System (SLS) rocket for NASA’s Artemis V mission. The SLS has four RS-25 engines.

Artemis 2's Space Launch System rocket core stage was fitted with 4 RS-25 engines at NASA’s Michoud Assembly Facility in New Orleans. Footage courtesy: NASA/Evan Deroche/Steven Seipel/Eric Bordelon Time-lapsed by Space.

For the second time in five days, NASA on Saturday halted a countdown in progress and postponed a planned attempt to launch the debut test flight of its giant, next-generation rocket, the first mission of the agency's moon-to-Mars Artemis program.

L3Harris' RS-25 engine, which will support the core stage of the Space Launch System rocket for the Artemis V mission, was fired for 500 seconds.

NASA nominee Jared Isaacman suggests a mission shift. He believes NASA should pioneer advanced technologies like nuclear propulsion. Private companies can then take over these proven systems. This approach avoids duplicating commercial efforts.