The Artemis II mission is set to launch four astronauts atop NASA’s SLS (Space Launch System) rocket later today – and while this specific rocket is only flying on its second mission, its core stage ...

Historic engine test: SpaceX fired all 33 Raptor engines on the Super Heavy V3 booster at full thrust and duration for the first time, a major program milestone. Launch window set: Federal airspace ...

When Artemis II blasts off for its lunar flyby, its powerful SLS rocket will include some "heritage hardware." The core engines are mostly recycled space shuttle engines, along with some reused ...

A prototype ion engine that uses lithium vapor as a propellant has aced its first tests, achieving 25 times more power than previous ion engines.

NASA is getting ready to launch its massive, fully expendable rocket for the first crewed flight to the Moon since Apollo. The agency’s new era of spaceflight comes with a few parts from its past, ...

Three of the four RS-25 engines powering the Artemis II mission previously flew on NASA’s Space Shuttle fleet. The engines are cooled by liquid hydrogen to prevent the nozzle from melting from the ...