NASA Tests New Engine Components for Upcoming Moon Missions

• NASA successfully completed a hot fire test of the RS-25 engine No. 10001 at the Stennis Space Center on October 21, 2026.
• The test duration matched the 500-second window required for an actual launch of the Space Launch System (SLS) rocket.
• Operators pushed the engine to 111% power to simulate the thrust necessary for future Artemis missions.

Test Objectives and Significance

• The primary goals included acceptance testing of flight components and validation of a new thermal protection system for the engine nozzle.
• While engine No. 10001 is a developmental unit and will not fly, the data collected is vital for enhancing the performance and reliability of future flight-ready engines.
• Testing is conducted by a collaborative team from NASA, L3Harris Technologies, and Nova Space Solutions.

The Role of the RS-25

• Four RS-25 engines work together to generate up to 2 million pounds of combined thrust during an Artemis launch.
• Every RS-25 engine undergoes rigorous testing at the Stennis facility to ensure it is flightworthy before integration into the SLS rocket.