
NASA marked a significant milestone yesterday in its plans for future missions to the Moon and, eventually, Mars with completion of an RS-25 single-engine Retrofit-2 test series at Stennis Space Center near Bay St. Louis.
A full-duration hot fire of RS-25 developmental engine No. 0528 on the A-1 Test Stand at Stennis culminated a seven-test series to support development and production of new engines for the agency’s Space Launch System (SLS) rocket on future missions.
During the hot fire, operators fired RS-25 developmental engine No. 0528, used for each of the seven tests in the series, for more than eight minutes, the same time required during an actual launch.
The Sept. 30 test was delayed from its original date due to impacts from Hurricane Ida, which struck the Gulf Coast region on Aug. 29. The storm initially impacted propellant deliveries to the center, necessitating a delay as suppliers recovered full capabilities.






