RS-25 Engines Installed for Artemis III Rocket
Technicians at NASA’s Kennedy Space Center in Florida began installing four RS-25 engines into the core stage of the Space Launch System rocket on Aug. 24. NASA said the rocket is scheduled to carry the Artemis III crew into low Earth orbit in 2027, with each engine identified by a unique serial number documenting its flight history.

Technicians at NASA’s Kennedy Space Center in Florida began installing four RS-25 engines in the core stage of the Space Launch System rocket on Aug. 24, according to NASA.
NASA said the SLS rocket will carry the Artemis III crew into low Earth orbit in 2027. Each RS-25 engine has a unique serial number that records its detailed flight history.
THE QUESTIONS THIS EVENT LEAVES BEHIND
What conditions must be met before the rocket can carry the Artemis III crew into low Earth orbit?
How will the engines’ recorded flight histories affect decisions about their use?
What could change the planned 2027 schedule?
Who is responsible for verifying the engines and core stage before launch?
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