The Second SLS Booster Is Bound for Florida on the 55th Anniversary of Apollo 11's Launch...

NASA / Steven Seipel

NASA Ships Moon Rocket Stage Ahead of First Crewed Artemis Flight (News Release)

NASA rolled out the SLS (Space Launch System) rocket’s core stage for the Artemis II test flight from its manufacturing facility in New Orleans on Tuesday for shipment to the agency’s spaceport in Florida. The rollout is key progress on the path to NASA’s first crewed mission to the Moon under the Artemis campaign.

Using highly-specialized transporters, engineers maneuvered the giant core stage from inside NASA’s Michoud Assembly Facility in New Orleans to the agency’s Pegasus barge. The barge will ferry the stage more than 900 miles to NASA’s Kennedy Space Center in Florida, where engineers will prepare it in the Vehicle Assembly Building for attachment to other rocket and Orion spacecraft elements.

“With Artemis, we’ve set our sights on doing something big and incredibly complex that will inspire a new generation, advance our scientific endeavors, and move U.S. competitiveness forward,” said Catherine Koerner, associate administrator for NASA’s Exploration Systems Development Mission Directorate at NASA Headquarters in Washington. “The SLS rocket is a key component of our efforts to develop a long-term presence at the Moon.”

Technicians moved the SLS rocket stage from inside NASA Michoud on the 55th anniversary of the launch of Apollo 11 on July 16, 1969. The move of the rocket stage for Artemis marks the first time since the Apollo Program that a fully-assembled Moon rocket stage for a crewed mission rolled out from NASA Michoud.

The SLS rocket’s core stage is the largest that NASA has ever produced. At 212 feet-tall, it consists of five major elements, including two huge propellant tanks that collectively hold more than 733,000 gallons of super-chilled liquid propellant to feed four RS-25 engines.

During launch and flight, the stage will operate for just over eight minutes, producing more than 2 million pounds of thrust to propel four astronauts inside NASA’s Orion spacecraft toward the Moon.

“The delivery of the SLS core stage for Artemis II to Kennedy Space Center signals a shift from manufacturing to launch readiness as teams continue to make progress on hardware for all major elements for future SLS rockets,” said John Honeycutt, SLS program manager at NASA’s Marshall Space Flight Center in Huntsville, Alabama. “We are motivated by the success of Artemis I and focused on working toward the first crewed flight under Artemis.”

After arrival at NASA Kennedy, the stage will undergo additional outfitting inside the Vehicle Assembly Building. Engineers will then join it with the segments that form the rocket’s twin solid rocket boosters.

Adapters for the Moon rocket that connect it to the Orion spacecraft will be shipped to NASA Kennedy this fall, while the interim cryogenic propulsion stage is already in Florida. Engineers continue to prepare Orion, already at Kennedy, and exploration ground systems for launch and flight.

All major structures for every SLS core stage are fully manufactured at NASA Michoud. Inside the factory, core stages and future Exploration Upper Stages for the next evolution of SLS, called the Block 1B configuration, are currently in various phases of production for Artemis III, IV and V.

Beginning with Artemis III, to better optimize space at Michoud, Boeing, the SLS core stage prime contractor, will use space at NASA Kennedy for final assembly and outfitting activities.

Building, assembling and transporting the SLS core stage is a collaborative effort for NASA, Boeing and lead RS-25 engines contractor Aerojet Rocketdyne, an L3Harris Technologies company. All 10 NASA centers contribute to its development with more than 1,100 companies across the United States contributing to its production.

NASA is working to land the first woman, first person of color and its first international partner astronaut on the Moon under Artemis. SLS is part of NASA’s backbone for deep space exploration, along with the Orion spacecraft, supporting ground systems, advanced spacesuits and rovers, the Gateway in orbit around the Moon, and commercial human landing systems.

SLS is the only rocket that can send Orion, astronauts and supplies to the Moon in a single launch.

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NASA / Sam Lott


NASA / Sam Lott


NASA / Sam Lott


NASA / Sam Lott


NASA / Eric Bordelon & Michael DeMocker


NASA / Eric Bordelon & Michael DeMocker


NASA / Evan Deroche


NASA / Evan Deroche


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