Join us Thursday, March 18, for the second “hot fire” of the Space Launch System (SLS) rocket’s core stage at our Stennis Space Center near Bay St. Louis, Mississippi.  

This hot fire is the last in our series of Green Run tests. During the hot fire test, engineers will power up all the core stage systems, loaded with more than 700,000 gallons of cryogenic propellant, and all four engines will fire, just as they will during the Artemis I launch.  

Following the test, the core stage will be shipped to the Kennedy Space Center, where engineers will assemble it with the other parts of the Artemis I rocket and the Orion spacecraft. Just this week, engineers finished stacking the segments of the SLS’s twin solid-fueled booster rockets

-NASA also photo