NASA delivered a treat with a full-duration RS-25 engine test Oct. 31, and the shake, rattle and roar of the hot fire kept away any eerie creaks and frightful sounds the Halloween day might have had to offer. A team of NASA, Aerojet Rocketdyne and Syncom Space Services operators conducted the 500-second RS-25 test on the A-1 Test Stand at Stennis Space Center near Bay St. Louis, Miss., the fifth hot fire in an engine test series that began in mid-August. The test marked an acceptance hot fire of another RS-25 engine controller for use on a future flight of NASA’s new Space Launch System (SLS) rocket, which is being built now to carry humans deeper into space than ever before. As always, learn more about this sophisticated system at: nasa.gov/sls Credit: NASA #nasa #spacelaunchsystem #sls #engines #rs25 #stennis #rockets #baystlouis #mississippi #slsfiredup #exploremore #rocketscience