SLS Green Run Team Powers Up Core Stage for Wet Dress Rehearsal

NASA and Boeing engineers have powered up the Space Launch System rocket core stage to continue with the seventh test, wet dress rehearsal at the agency’s Stennis Space Center near Bay St. Louis, Mississippi. The NASA and Boeing team plan to fully load the stage’s liquid hydrogen and liquid oxygen tanks this week. This test demonstrates the ability to load the core stage with cryogenic propellant.

Following a partial loading of the tanks earlier this month, the team is now resuming the seventh of the eight tests in the Green Run series being completed with the Artemis I core stage. Upon completion of the wet dress rehearsal, the team will spend a few days analyzing data to determine if NASA is ready to proceed with the final Green Run test: the hot fire when all four engines will ignite simulating the countdown and launch of the Artemis I mission.

NASA will set a date for the hot fire after the wet dress rehearsal is complete. For an update at the conclusion of wet dress rehearsal, check back at this blog or visit the Green Run web site: https://www.nasa.gov/artemisprogram/greenrun