Teams from NASA’s Exploration Ground Systems transport the engine section of the agency’s Artemis IV SLS (Space Launch System) core stage from the Vehicle Assembly Building at NASA’s Kennedy Space Center in Florida to the spaceport’s Space Systems Processing Facility (SSPF) on Tuesday, Oct. 15, 2024. NASA’s Pegasus barge delivered the core stage engine section housing the four RS-25 engines from NASA’s Michoud Assembly Facility in New Orleans, Louisiana to NASA Kennedy on Thursday, Sept. 5, 2024. The engine section is one the most complex and intricate parts of the rocket stage that will help power the Artemis missions to the Moon.

Teams from NASA’s Exploration Ground Systems transport the engine section of the agency’s Artemis IV SLS (Space Launch System) core stage from the Vehicle Assembly Building at NASA’s Kennedy Space Center in Florida to the spaceport’s Space Systems Processing Facility (SSPF) on Tuesday, Oct. 15, 2024. NASA’s Pegasus barge delivered the core stage engine section housing the four RS-25 engines from NASA’s Michoud Assembly Facility in New Orleans, Louisiana to NASA Kennedy on Thursday, Sept. 5, 2024. The engine section is one the most complex and intricate parts of the rocket stage that will help power the Artemis missions to the Moon.

Teams from NASA’s Exploration Ground Systems transport the engine section of the agency’s Artemis IV SLS (Space Launch System) core stage from the Vehicle Assembly Building at NASA’s Kennedy Space Center in Florida to the spaceport’s Space Systems Processing Facility (SSPF) on Tuesday, Oct. 15, 2024. NASA’s Pegasus barge delivered the core stage engine section housing the four RS-25 engines from NASA’s Michoud Assembly Facility in New Orleans, Louisiana to NASA Kennedy on Thursday, Sept. 5, 2024. The engine section is one the most complex and intricate parts of the rocket stage that will help power the Artemis missions to the Moon.

The engine section of NASA’s Artemis IV SLS (Space Launch System) core stage arrives at the Space Systems Processing Facility (SSPF) at NASA’s Kennedy Space Center in Florida on Tuesday, Oct. 15, 2024, after being transported from the spaceport’s Vehicle Assembly Building. NASA’s Pegasus barge delivered the core stage engine section housing the four RS-25 engines from NASA’s Michoud Assembly Facility in New Orleans, Louisiana to NASA Kennedy on Thursday, Sept. 5, 2024. The engine section is one the most complex and intricate parts of the rocket stage that will help power the Artemis missions to the Moon.

Technicians lift the engine section for NASA’s Artemis IV SLS (Space Launch System) rocket ahead of further processing inside the high bay of the Space Systems Processing Facility at the agency's Kennedy Space Center in Florida on Monday, Oct. 21, 2024. The engine section is one of five major elements that makes up the SLS rocket’s 212-foot-tall core stage, which house the rocket’s four RS-25 engines and vital systems for mounting, controlling, and delivering fuel from the stage’s two massive liquid propellant tanks to the engines.

Technicians lift the engine section for NASA’s Artemis IV SLS (Space Launch System) rocket ahead of further processing inside the high bay of the Space Systems Processing Facility at the agency's Kennedy Space Center in Florida on Monday, Oct. 21, 2024. The engine section is one of five major elements that makes up the SLS rocket’s 212-foot-tall core stage, which house the rocket’s four RS-25 engines and vital systems for mounting, controlling, and delivering fuel from the stage’s two massive liquid propellant tanks to the engines.