NASA received the upper stage for the agency’s Artemis II Space Launch System rocket on March 9 at NASA’s Kennedy Space Center.

Existing Aerojet Rocketdyne hydrogen-oxygen engine designs and hardware will be used for the SLS core and upper stages, but both the space agency and the prime contractor for the RS-25 and RL10 ...

NASA received the upper stage for the agency's Artemis II SLS (Space Launch System) rocket on Mar. 4 supplied by Boeing and ...

The four RL10 engines used during the exploration upper stage green run test series at Stennis are complete, and work on the Artemis IV core stage is in progress at nearby Michoud. The evolved ...