
ENGINEERS USING A STATE-OF-THE-ART VERTICAL WELDING TOOL AT THE MARSHALL SPACE FLIGHT CENTER IN HUNTSVILLE, ALA., MOVE A "PATHFINDER" VERSION OF THE ADAPTER DESIGN THAT WILL BE USED ON TEST FLIGHTS OF THE ORION SPACECRAFT AND NASA'S SPACE LAUNCH SYSTEM

ENGINEERS USING A STATE-OF-THE-ART VERTICAL WELDING TOOL AT THE MARSHALL SPACE FLIGHT CENTER IN HUNTSVILLE, ALA., MOVE A "PATHFINDER" VERSION OF THE ADAPTER DESIGN THAT WILL BE USED ON TEST FLIGHTS OF THE ORION SPACECRAFT AND NASA'S SPACE LAUNCH SYSTEM

Workers are shown assembling the vertical weld tool in support of the Ares/Constellation upperstage project. This image extracted from high definition video and is the highest resolution available.

LAUNCH VEHICLE STAGE ADAPTER (LVSA) AFT CONE MOVE FROM THE VERTICAL WELD TOOL TO THE FLOOR OF BLDG 4755

FIVE SEGMENTS LOADED ONTO THE VERTICAL WELD TOOL FOR SHELL BUCKLING TEST IN BUILDING 4755

LAUNCH VEHICLE STAGE ADAPTER (LVSA) AFT CONE MOVE FROM THE VERTICAL WELD TOOL TO THE FLOOR OF BLDG 4755

FIVE SEGMENTS LOADED ONTO THE VERTICAL WELD TOOL FOR SHELL BUCKLING TEST IN BUILDING 4755

LAUNCH VEHICLE STAGE ADAPTER (LVSA) AFT CONE MOVE FROM THE VERTICAL WELD TOOL TO THE FLOOR OF BLDG 4755

FIVE SEGMENTS LOADED ONTO THE VERTICAL WELD TOOL FOR SHELL BUCKLING TEST IN BUILDING 4755

LAUNCH VEHICLE STAGE ADAPTER (LVSA) AFT CONE MOVE FROM THE VERTICAL WELD TOOL TO THE FLOOR OF BLDG 4755

LAUNCH VEHICLE STAGE ADAPTER (LVSA) AFT CONE MOVE FROM THE VERTICAL WELD TOOL TO THE FLOOR OF BLDG 4755

LAUNCH VEHICLE STAGE ADAPTER (LVSA) AFT CONE MOVE FROM THE VERTICAL WELD TOOL TO THE FLOOR OF BLDG 4755

LAUNCH VEHICLE STAGE ADAPTER (LVSA) AFT CONE MOVE FROM THE VERTICAL WELD TOOL TO THE FLOOR OF BLDG 4755

FIVE SEGMENTS LOADED ONTO THE VERTICAL WELD TOOL FOR SHELL BUCKLING TEST IN BUILDING 4755

LAUNCH VEHICLE STAGE ADAPTER (LVSA) AFT CONE MOVE FROM THE VERTICAL WELD TOOL TO THE FLOOR OF BLDG 4755

THE OVERHEAD VIEW OF THE FLOOR OF THE FRICTION STIR HIGH BAY AREA IN BUILDING 4755. THIS VIEW SHOWS FOUR DOME PIECES AS WELL AS THE SHELL BUCKLE BARREL PANEL IN THE VERTICAL WELD TOOL

THE OVERHEAD VIEW OF THE FLOOR OF THE FRICTION STIR HIGH BAY AREA IN BUILDING 4755. THIS VIEW SHOWS FOUR DOME PIECES AS WELL AS THE SHELL BUCKLE BARREL PANEL IN THE VERTICAL WELD TOOL

THE OVERHEAD VIEW OF THE FLOOR OF THE FRICTION STIR HIGH BAY AREA IN BUILDING 4755. THIS VIEW SHOWS FOUR DOME PIECES AS WELL AS THE SHELL BUCKLE BARREL PANEL IN THE VERTICAL WELD TOOL

Lift of three EUS test panels in VWC at Michoud Assembly Facility on Thursday, February 11, 2021. Technicians are manufacturing and testing the first in a series of initial weld confidence articles for the Exploration Upper Stage (EUS) for future flights of NASA’s Space Launch System (SLS) rocket at the agency’s Michoud Assembly Facility in New Orleans. The Exploration Upper Stage will be used on the second configuration of the SLS rocket, known as Block 1B, and will provide in-space propulsion to send astronauts in NASA’s Orion spacecraft and heavy cargo on a precise trajectory to the Moon. The Exploration Upper Stage weld confidence panels are first produced in the Vertical Weld Center at Michoud, then small sections of the panels are removed for mechanical testing and analysis in another area of the factory. Teams use weld confidence articles to verify welding procedures, interfaces between the tooling and hardware, and the structural integrity of the welds. Testing of the EUS weld confidence articles will help engineers and technicians validate welding parameters for manufacturing EUS hardware. The first three SLS flights of NASA’s Artemis program will use an interim cryogenic propulsion stage with one RL10 engine to send Orion to the Moon. The SLS Exploration Upper Stage for flights beyond Artemis III has larger propellant tanks and four RL10 engines. The evolution of the rocket to SLS Block 1B configuration with EUS enables SLS to launch 40% more cargo to the Moon along with the crew. Manufacturing the Exploration Upper Stage is a collaborative effort between NASA and Boeing, the lead contractor for EUS and the SLS core stage. SLS is the only rocket that can send Orion, astronauts, and supplies to the Moon in a single mission. The SLS rocket, NASA’s Orion spacecraft, Gateway, and human landing system are part of NASA’s backbone for deep space exploration. Under the Artemis program, NASA is working to land the first woman and the next man on the Moon to pave the way for sustainable exploration at the Moon and future missions to Mars. (NASA)

A SLS LAUNCH VEHICLE STAGE ADAPTER IS MOVED FROM THE VERTICAL WELD TOOL STATION IN MSFC’S BUILDING 4755 TO THE WEST TEST AREA’S TEST STAND 4699 WHERE IT WILL UNDERGO FURTHER TESTING OF ITS ABILITY TO WITHSTAND THE STRESSES RELATED TO LAUNCH AND SPACE TRAVEL.

A SLS LAUNCH VEHICLE STAGE ADAPTER IS MOVED FROM THE VERTICAL WELD TOOL STATION IN MSFC’S BUILDING 4755 TO THE WEST TEST AREA’S TEST STAND 4699 WHERE IT WILL UNDERGO FURTHER TESTING OF ITS ABILITY TO WITHSTAND THE STRESSES RELATED TO LAUNCH AND SPACE TRAVEL.

A SLS LAUNCH VEHICLE STAGE ADAPTER IS MOVED FROM THE VERTICAL WELD TOOL STATION IN MSFC’S BUILDING 4755 TO THE WEST TEST AREA’S TEST STAND 4699 WHERE IT WILL UNDERGO FURTHER TESTING OF ITS ABILITY TO WITHSTAND THE STRESSES RELATED TO LAUNCH AND SPACE TRAVEL.

A SLS LAUNCH VEHICLE STAGE ADAPTER IS MOVED FROM THE VERTICAL WELD TOOL STATION IN MSFC’S BUILDING 4755 TO THE WEST TEST AREA’S TEST STAND 4699 WHERE IT WILL UNDERGO FURTHER TESTING OF ITS ABILITY TO WITHSTAND THE STRESSES RELATED TO LAUNCH AND SPACE TRAVEL.

Space Launch System Corestage-2 Liquid Hydrogen(LH2) tank is under construction at NASA's Michoud Assembly Facility. Here you can see 1 of 5 barrels being loaded in the Vertical Assembly Center tool where it will be welded.

A SLS LAUNCH VEHICLE STAGE ADAPTER IS MOVED FROM THE VERTICAL WELD TOOL STATION IN MSFC’S BUILDING 4755 TO THE WEST TEST AREA’S TEST STAND 4699 WHERE IT WILL UNDERGO FURTHER TESTING OF ITS ABILITY TO WITHSTAND THE STRESSES RELATED TO LAUNCH AND SPACE TRAVEL.

Space Launch System Corestage-2 Liquid Hydrogen(LH2) tank is under construction at NASA's Michoud Assembly Facility. Here you can see 1 of 5 barrels being loaded in the Vertical Assembly Center tool where it will be welded.

A SLS LAUNCH VEHICLE STAGE ADAPTER IS MOVED FROM THE VERTICAL WELD TOOL STATION IN MSFC’S BUILDING 4755 TO THE WEST TEST AREA’S TEST STAND 4699 WHERE IT WILL UNDERGO FURTHER TESTING OF ITS ABILITY TO WITHSTAND THE STRESSES RELATED TO LAUNCH AND SPACE TRAVEL.

Space Launch System Corestage-2 Liquid Hydrogen(LH2) tank is under construction at NASA's Michoud Assembly Facility. Here you can see 1 of 5 barrels being loaded in the Vertical Assembly Center tool where it will be welded.

A SLS LAUNCH VEHICLE STAGE ADAPTER IS MOVED FROM THE VERTICAL WELD TOOL STATION IN MSFC’S BUILDING 4755 TO THE WEST TEST AREA’S TEST STAND 4699 WHERE IT WILL UNDERGO FURTHER TESTING OF ITS ABILITY TO WITHSTAND THE STRESSES RELATED TO LAUNCH AND SPACE TRAVEL.

A SLS LAUNCH VEHICLE STAGE ADAPTER IS MOVED FROM THE VERTICAL WELD TOOL STATION IN MSFC’S BUILDING 4755 TO THE WEST TEST AREA’S TEST STAND 4699 WHERE IT WILL UNDERGO FURTHER TESTING OF ITS ABILITY TO WITHSTAND THE STRESSES RELATED TO LAUNCH AND SPACE TRAVEL.

Space Launch System Corestage-2 Liquid Hydrogen(LH2) tank is under construction at NASA's Michoud Assembly Facility. Here you can see 1 of 5 barrels being loaded in the Vertical Assembly Center tool where it will be welded.

A SLS LAUNCH VEHICLE STAGE ADAPTER IS MOVED FROM THE VERTICAL WELD TOOL STATION IN MSFC’S BUILDING 4755 TO THE WEST TEST AREA’S TEST STAND 4699 WHERE IT WILL UNDERGO FURTHER TESTING OF ITS ABILITY TO WITHSTAND THE STRESSES RELATED TO LAUNCH AND SPACE TRAVEL.

Space Launch System Corestage-2 Liquid Hydrogen(LH2) tank is under construction at NASA's Michoud Assembly Facility. Here you can see 1 of 5 barrels being loaded in the Vertical Assembly Center tool where it will be welded.

EUS panel test weld at the VXC in Building 115 at the Michoud Assembly Facility on Tuesday, February 9, 2021. Technicians are manufacturing and testing the first in a series of initial weld confidence articles for the Exploration Upper Stage (EUS) for future flights of NASA’s Space Launch System (SLS) rocket at the agency’s Michoud Assembly Facility in New Orleans. The Exploration Upper Stage will be used on the second configuration of the SLS rocket, known as Block 1B, and will provide in-space propulsion to send astronauts in NASA’s Orion spacecraft and heavy cargo on a precise trajectory to the Moon. The Exploration Upper Stage weld confidence panels are first produced in the Vertical Weld Center at Michoud, then small sections of the panels are removed for mechanical testing and analysis in another area of the factory. Teams use weld confidence articles to verify welding procedures, interfaces between the tooling and hardware, and the structural integrity of the welds. Testing of the EUS weld confidence articles will help engineers and technicians validate welding parameters for manufacturing EUS hardware. The first three SLS flights of NASA’s Artemis program will use an interim cryogenic propulsion stage with one RL10 engine to send Orion to the Moon. The SLS Exploration Upper Stage for flights beyond Artemis III has larger propellant tanks and four RL10 engines. The evolution of the rocket to SLS Block 1B configuration with EUS enables SLS to launch 40% more cargo to the Moon along with the crew. Manufacturing the Exploration Upper Stage is a collaborative effort between NASA and Boeing, the lead contractor for EUS and the SLS core stage. SLS is the only rocket that can send Orion, astronauts, and supplies to the Moon in a single mission. The SLS rocket, NASA’s Orion spacecraft, Gateway, and human landing system are part of NASA’s backbone for deep space exploration. Under the Artemis program, NASA is working to land the first woman and the next man on the Moon to pave the way for sustainable exploration at the Moon and future missions to Mars. (NASA)

EUS panel test weld at the VXC in Building 115 at the Michoud Assembly Facility on Tuesday, February 9, 2021. Technicians are manufacturing and testing the first in a series of initial weld confidence articles for the Exploration Upper Stage (EUS) for future flights of NASA’s Space Launch System (SLS) rocket at the agency’s Michoud Assembly Facility in New Orleans. The Exploration Upper Stage will be used on the second configuration of the SLS rocket, known as Block 1B, and will provide in-space propulsion to send astronauts in NASA’s Orion spacecraft and heavy cargo on a precise trajectory to the Moon. The Exploration Upper Stage weld confidence panels are first produced in the Vertical Weld Center at Michoud, then small sections of the panels are removed for mechanical testing and analysis in another area of the factory. Teams use weld confidence articles to verify welding procedures, interfaces between the tooling and hardware, and the structural integrity of the welds. Testing of the EUS weld confidence articles will help engineers and technicians validate welding parameters for manufacturing EUS hardware. The first three SLS flights of NASA’s Artemis program will use an interim cryogenic propulsion stage with one RL10 engine to send Orion to the Moon. The SLS Exploration Upper Stage for flights beyond Artemis III has larger propellant tanks and four RL10 engines. The evolution of the rocket to SLS Block 1B configuration with EUS enables SLS to launch 40% more cargo to the Moon along with the crew. Manufacturing the Exploration Upper Stage is a collaborative effort between NASA and Boeing, the lead contractor for EUS and the SLS core stage. SLS is the only rocket that can send Orion, astronauts, and supplies to the Moon in a single mission. The SLS rocket, NASA’s Orion spacecraft, Gateway, and human landing system are part of NASA’s backbone for deep space exploration. Under the Artemis program, NASA is working to land the first woman and the next man on the Moon to pave the way for sustainable exploration at the Moon and future missions to Mars. (NASA)

EUS panel test weld at the VXC in Building 115 at the Michoud Assembly Facility on Tuesday, February 9, 2021. Technicians are manufacturing and testing the first in a series of initial weld confidence articles for the Exploration Upper Stage (EUS) for future flights of NASA’s Space Launch System (SLS) rocket at the agency’s Michoud Assembly Facility in New Orleans. The Exploration Upper Stage will be used on the second configuration of the SLS rocket, known as Block 1B, and will provide in-space propulsion to send astronauts in NASA’s Orion spacecraft and heavy cargo on a precise trajectory to the Moon. The Exploration Upper Stage weld confidence panels are first produced in the Vertical Weld Center at Michoud, then small sections of the panels are removed for mechanical testing and analysis in another area of the factory. Teams use weld confidence articles to verify welding procedures, interfaces between the tooling and hardware, and the structural integrity of the welds. Testing of the EUS weld confidence articles will help engineers and technicians validate welding parameters for manufacturing EUS hardware. The first three SLS flights of NASA’s Artemis program will use an interim cryogenic propulsion stage with one RL10 engine to send Orion to the Moon. The SLS Exploration Upper Stage for flights beyond Artemis III has larger propellant tanks and four RL10 engines. The evolution of the rocket to SLS Block 1B configuration with EUS enables SLS to launch 40% more cargo to the Moon along with the crew. Manufacturing the Exploration Upper Stage is a collaborative effort between NASA and Boeing, the lead contractor for EUS and the SLS core stage. SLS is the only rocket that can send Orion, astronauts, and supplies to the Moon in a single mission. The SLS rocket, NASA’s Orion spacecraft, Gateway, and human landing system are part of NASA’s backbone for deep space exploration. Under the Artemis program, NASA is working to land the first woman and the next man on the Moon to pave the way for sustainable exploration at the Moon and future missions to Mars. (NASA)

Crews at NASA’s Michoud Assembly Facility in New Orleans load alluminum alloy panels into the Vertical Weld Center June 1. The Vertical Weld Center is a friction-stir weld tool for the large structures of the core stage for the SLS (Space Launch System) rocket. Teams load the panels into the VWC using an overhead crane system, then multiple panels are welded together to create entire barrels. The panels in these images are some of the five barrels that will form the SLS liquid hydrogen propellant tank for the SLS rocket that will power NASA’s Artemis IV mission, which is also the first flight of SLS in its more powerful Block 1B configuration. The SLS core stage is made up of five unique elements: the forward skirt, liquid oxygen tank, intertank, liquid hydrogen tank, and the engine section. The liquid hydrogen propellant tank holds 537,000 gallons of liquid hydrogen cooled to minus 432 degrees Fahrenheit and sits between the core stage’s intertank and engine section. The liquid hydrogen hardware, along with the liquid oxygen tank, provides propellant to the four RS-25 engines at the bottom of the core stage to produce more than two million pounds of thrust to help launch the Artemis IV mission to the Moon. Together with its four RS-25 engines, the rocket’s massive 212-foot-tall core stage — the largest stage NASA has ever built — and its twin solid rocket boosters produce 8.8 million pounds of thrust to send NASA’s Orion spacecraft, astronauts and supplies beyond Earth’s orbit to the Moon. NASA is working to land the first woman and first person of color on the Moon under Artemis. SLS is part of NASA’s backbone for deep space exploration, along with Orion and the Gateway in orbit around the Moon. SLS is the only rocket that can send Orion, astronauts, and supplies to the Moon in a single mission.

Crews at NASA’s Michoud Assembly Facility in New Orleans load alluminum alloy panels into the Vertical Weld Center June 1. The Vertical Weld Center is a friction-stir weld tool for the large structures of the core stage for the SLS (Space Launch System) rocket. Teams load the panels into the VWC using an overhead crane system, then multiple panels are welded together to create entire barrels. The panels in these images are some of the five barrels that will form the SLS liquid hydrogen propellant tank for the SLS rocket that will power NASA’s Artemis IV mission, which is also the first flight of SLS in its more powerful Block 1B configuration. The SLS core stage is made up of five unique elements: the forward skirt, liquid oxygen tank, intertank, liquid hydrogen tank, and the engine section. The liquid hydrogen propellant tank holds 537,000 gallons of liquid hydrogen cooled to minus 432 degrees Fahrenheit and sits between the core stage’s intertank and engine section. The liquid hydrogen hardware, along with the liquid oxygen tank, provides propellant to the four RS-25 engines at the bottom of the core stage to produce more than two million pounds of thrust to help launch the Artemis IV mission to the Moon. Together with its four RS-25 engines, the rocket’s massive 212-foot-tall core stage — the largest stage NASA has ever built — and its twin solid rocket boosters produce 8.8 million pounds of thrust to send NASA’s Orion spacecraft, astronauts and supplies beyond Earth’s orbit to the Moon. NASA is working to land the first woman and first person of color on the Moon under Artemis. SLS is part of NASA’s backbone for deep space exploration, along with Orion and the Gateway in orbit around the Moon. SLS is the only rocket that can send Orion, astronauts, and supplies to the Moon in a single mission.

Crews at NASA’s Michoud Assembly Facility in New Orleans load alluminum alloy panels into the Vertical Weld Center June 1. The Vertical Weld Center is a friction-stir weld tool for the large structures of the core stage for the SLS (Space Launch System) rocket. Teams load the panels into the VWC using an overhead crane system, then multiple panels are welded together to create entire barrels. The panels in these images are some of the five barrels that will form the SLS liquid hydrogen propellant tank for the SLS rocket that will power NASA’s Artemis IV mission, which is also the first flight of SLS in its more powerful Block 1B configuration. The SLS core stage is made up of five unique elements: the forward skirt, liquid oxygen tank, intertank, liquid hydrogen tank, and the engine section. The liquid hydrogen propellant tank holds 537,000 gallons of liquid hydrogen cooled to minus 432 degrees Fahrenheit and sits between the core stage’s intertank and engine section. The liquid hydrogen hardware, along with the liquid oxygen tank, provides propellant to the four RS-25 engines at the bottom of the core stage to produce more than two million pounds of thrust to help launch the Artemis IV mission to the Moon. Together with its four RS-25 engines, the rocket’s massive 212-foot-tall core stage — the largest stage NASA has ever built — and its twin solid rocket boosters produce 8.8 million pounds of thrust to send NASA’s Orion spacecraft, astronauts and supplies beyond Earth’s orbit to the Moon. NASA is working to land the first woman and first person of color on the Moon under Artemis. SLS is part of NASA’s backbone for deep space exploration, along with Orion and the Gateway in orbit around the Moon. SLS is the only rocket that can send Orion, astronauts, and supplies to the Moon in a single mission.

Crews at NASA’s Michoud Assembly Facility in New Orleans load alluminum alloy panels into the Vertical Weld Center June 1. The Vertical Weld Center is a friction-stir weld tool for the large structures of the core stage for the SLS (Space Launch System) rocket. Teams load the panels into the VWC using an overhead crane system, then multiple panels are welded together to create entire barrels. The panels in these images are some of the five barrels that will form the SLS liquid hydrogen propellant tank for the SLS rocket that will power NASA’s Artemis IV mission, which is also the first flight of SLS in its more powerful Block 1B configuration. The SLS core stage is made up of five unique elements: the forward skirt, liquid oxygen tank, intertank, liquid hydrogen tank, and the engine section. The liquid hydrogen propellant tank holds 537,000 gallons of liquid hydrogen cooled to minus 432 degrees Fahrenheit and sits between the core stage’s intertank and engine section. The liquid hydrogen hardware, along with the liquid oxygen tank, provides propellant to the four RS-25 engines at the bottom of the core stage to produce more than two million pounds of thrust to help launch the Artemis IV mission to the Moon. Together with its four RS-25 engines, the rocket’s massive 212-foot-tall core stage — the largest stage NASA has ever built — and its twin solid rocket boosters produce 8.8 million pounds of thrust to send NASA’s Orion spacecraft, astronauts and supplies beyond Earth’s orbit to the Moon. NASA is working to land the first woman and first person of color on the Moon under Artemis. SLS is part of NASA’s backbone for deep space exploration, along with Orion and the Gateway in orbit around the Moon. SLS is the only rocket that can send Orion, astronauts, and supplies to the Moon in a single mission.

Lift of three EUS test panels in VWC at Michoud Assembly Facility on Thursday, February 11, 2021. Technicians are manufacturing and testing the first in a series of initial weld confidence articles for the Exploration Upper Stage (EUS) for future flights of NASA’s Space Launch System (SLS) rocket at the agency’s Michoud Assembly Facility in New Orleans. The Exploration Upper Stage will be used on the second configuration of the SLS rocket, known as Block 1B, and will provide in-space propulsion to send astronauts in NASA’s Orion spacecraft and heavy cargo on a precise trajectory to the Moon. The Exploration Upper Stage weld confidence panels are first produced in the Vertical Weld Center at Michoud, then small sections of the panels are removed for mechanical testing and analysis in another area of the factory. Teams use weld confidence articles to verify welding procedures, interfaces between the tooling and hardware, and the structural integrity of the welds. Testing of the EUS weld confidence articles will help engineers and technicians validate welding parameters for manufacturing EUS hardware. The first three SLS flights of NASA’s Artemis program will use an interim cryogenic propulsion stage with one RL10 engine to send Orion to the Moon. The SLS Exploration Upper Stage for flights beyond Artemis III has larger propellant tanks and four RL10 engines. The evolution of the rocket to SLS Block 1B configuration with EUS enables SLS to launch 40% more cargo to the Moon along with the crew. Manufacturing the Exploration Upper Stage is a collaborative effort between NASA and Boeing, the lead contractor for EUS and the SLS core stage. SLS is the only rocket that can send Orion, astronauts, and supplies to the Moon in a single mission. The SLS rocket, NASA’s Orion spacecraft, Gateway, and human landing system are part of NASA’s backbone for deep space exploration. Under the Artemis program, NASA is working to land the first woman and the next man on the Moon to pave the way for sustainable exploration at the Moon and future missions to Mars. (NASA)

Technicians are manufacturing and testing the first in a series of initial weld confidence articles for the Exploration Upper Stage (EUS) for future flights of NASA’s Space Launch System (SLS) rocket at the agency’s Michoud Assembly Facility in New Orleans. The Exploration Upper Stage will be used on the second configuration of the SLS rocket, known as Block 1B, and will provide in-space propulsion to send astronauts in NASA’s Orion spacecraft and heavy cargo on a precise trajectory to the Moon. The Exploration Upper Stage weld confidence panels are first produced in the Vertical Weld Center at Michoud, then small sections of the panels are removed for mechanical testing and analysis in another area of the factory. Teams use weld confidence articles to verify welding procedures, interfaces between the tooling and hardware, and the structural integrity of the welds. Testing of the EUS weld confidence articles will help engineers and technicians validate welding parameters for manufacturing EUS hardware. The first three SLS flights of NASA’s Artemis program will use an interim cryogenic propulsion stage with one RL10 engine to send Orion to the Moon. The SLS Exploration Upper Stage for flights beyond Artemis III has larger propellant tanks and four RL10 engines. The evolution of the rocket to SLS Block 1B configuration with EUS enables SLS to launch 40% more cargo to the Moon along with the crew. Manufacturing the Exploration Upper Stage is a collaborative effort between NASA and Boeing, the lead contractor for EUS and the SLS core stage. SLS is the only rocket that can send Orion, astronauts, and supplies to the Moon in a single mission. The SLS rocket, NASA’s Orion spacecraft, Gateway, and human landing system are part of NASA’s backbone for deep space exploration. Under the Artemis program, NASA is working to land the first woman and the next man on the Moon to pave the way for sustainable exploration at the Moon and future missions to Mars. (NASA)

Lift of three EUS test panels in VWC at Michoud Assembly Facility on Thursday, February 11, 2021. Technicians are manufacturing and testing the first in a series of initial weld confidence articles for the Exploration Upper Stage (EUS) for future flights of NASA’s Space Launch System (SLS) rocket at the agency’s Michoud Assembly Facility in New Orleans. The Exploration Upper Stage will be used on the second configuration of the SLS rocket, known as Block 1B, and will provide in-space propulsion to send astronauts in NASA’s Orion spacecraft and heavy cargo on a precise trajectory to the Moon. The Exploration Upper Stage weld confidence panels are first produced in the Vertical Weld Center at Michoud, then small sections of the panels are removed for mechanical testing and analysis in another area of the factory. Teams use weld confidence articles to verify welding procedures, interfaces between the tooling and hardware, and the structural integrity of the welds. Testing of the EUS weld confidence articles will help engineers and technicians validate welding parameters for manufacturing EUS hardware. The first three SLS flights of NASA’s Artemis program will use an interim cryogenic propulsion stage with one RL10 engine to send Orion to the Moon. The SLS Exploration Upper Stage for flights beyond Artemis III has larger propellant tanks and four RL10 engines. The evolution of the rocket to SLS Block 1B configuration with EUS enables SLS to launch 40% more cargo to the Moon along with the crew. Manufacturing the Exploration Upper Stage is a collaborative effort between NASA and Boeing, the lead contractor for EUS and the SLS core stage. SLS is the only rocket that can send Orion, astronauts, and supplies to the Moon in a single mission. The SLS rocket, NASA’s Orion spacecraft, Gateway, and human landing system are part of NASA’s backbone for deep space exploration. Under the Artemis program, NASA is working to land the first woman and the next man on the Moon to pave the way for sustainable exploration at the Moon and future missions to Mars. (NASA)

Technicians are manufacturing and testing the first in a series of initial weld confidence articles for the Exploration Upper Stage (EUS) for future flights of NASA’s Space Launch System (SLS) rocket at the agency’s Michoud Assembly Facility in New Orleans. The Exploration Upper Stage will be used on the second configuration of the SLS rocket, known as Block 1B, and will provide in-space propulsion to send astronauts in NASA’s Orion spacecraft and heavy cargo on a precise trajectory to the Moon. The Exploration Upper Stage weld confidence panels are first produced in the Vertical Weld Center at Michoud, then small sections of the panels are removed for mechanical testing and analysis in another area of the factory. Teams use weld confidence articles to verify welding procedures, interfaces between the tooling and hardware, and the structural integrity of the welds. Testing of the EUS weld confidence articles will help engineers and technicians validate welding parameters for manufacturing EUS hardware. The first three SLS flights of NASA’s Artemis program will use an interim cryogenic propulsion stage with one RL10 engine to send Orion to the Moon. The SLS Exploration Upper Stage for flights beyond Artemis III has larger propellant tanks and four RL10 engines. The evolution of the rocket to SLS Block 1B configuration with EUS enables SLS to launch 40% more cargo to the Moon along with the crew. Manufacturing the Exploration Upper Stage is a collaborative effort between NASA and Boeing, the lead contractor for EUS and the SLS core stage. SLS is the only rocket that can send Orion, astronauts, and supplies to the Moon in a single mission. The SLS rocket, NASA’s Orion spacecraft, Gateway, and human landing system are part of NASA’s backbone for deep space exploration. Under the Artemis program, NASA is working to land the first woman and the next man on the Moon to pave the way for sustainable exploration at the Moon and future missions to Mars. (NASA)

Technicians are manufacturing and testing the first in a series of initial weld confidence articles for the Exploration Upper Stage (EUS) for future flights of NASA’s Space Launch System (SLS) rocket at the agency’s Michoud Assembly Facility in New Orleans. The Exploration Upper Stage will be used on the second configuration of the SLS rocket, known as Block 1B, and will provide in-space propulsion to send astronauts in NASA’s Orion spacecraft and heavy cargo on a precise trajectory to the Moon. The Exploration Upper Stage weld confidence panels are first produced in the Vertical Weld Center at Michoud, then small sections of the panels are removed for mechanical testing and analysis in another area of the factory. Teams use weld confidence articles to verify welding procedures, interfaces between the tooling and hardware, and the structural integrity of the welds. Testing of the EUS weld confidence articles will help engineers and technicians validate welding parameters for manufacturing EUS hardware. The first three SLS flights of NASA’s Artemis program will use an interim cryogenic propulsion stage with one RL10 engine to send Orion to the Moon. The SLS Exploration Upper Stage for flights beyond Artemis III has larger propellant tanks and four RL10 engines. The evolution of the rocket to SLS Block 1B configuration with EUS enables SLS to launch 40% more cargo to the Moon along with the crew. Manufacturing the Exploration Upper Stage is a collaborative effort between NASA and Boeing, the lead contractor for EUS and the SLS core stage. SLS is the only rocket that can send Orion, astronauts, and supplies to the Moon in a single mission. The SLS rocket, NASA’s Orion spacecraft, Gateway, and human landing system are part of NASA’s backbone for deep space exploration. Under the Artemis program, NASA is working to land the first woman and the next man on the Moon to pave the way for sustainable exploration at the Moon and future missions to Mars. (NASA)

RIBBON CUTTING AT VERTICAL ASSEMBLY CENTER, MICHOUD ASSEMBLY FACILITY, SEPTEMBER 12, 2014, (L TO R): CLAY KIEFABER, CEO OF ESAB (COMPANY THAT BUILT WELDING TOOL)…PATRICK SCHEUERMANN…ROBERT LIGHTFOOT…TODD MAY…MISSISSIPPI CONGRESSMAN STEVEN PALAZZO…CHARLIE BOLDEN…LOUISIANA SENATOR DAVID VITTER…VIRGINIA BARNES, VICE-PRESIDENT AND PROGRAM MANAGER FOR SLS - BOEING… MITCH LANDRIEU, MAYOR OF NEW ORLEANS… JOHN ELBON, VICE PRESIDENT/GENERAL MANAGER, SPACE EXPLORATIONS – BOEING…PATRICK FORRESTER, ASTRONAUT…ROY MALONE.

Teams lift a liquid hydrogen tank barrel into the Vertical Assembly Center at Michoud Assembly Facility in New Orleans, on July 25, 2025. Inside the center, teams will perform a circumferential weld to connect the barrel to the previously loaded forward dome. The barrel is one of five barrels, which along with the forward and aft domes, make up the liquid hydrogen tank for the fourth core stage manufactured at the site. Artemis will pave the way for a long-term human presence on the lunar surface while ushering in the Golden Age of Innovation and Exploration.

Teams lift a liquid hydrogen tank barrel into the Vertical Assembly Center at Michoud Assembly Facility in New Orleans, on July 25, 2025. Inside the center, teams will perform a circumferential weld to connect the barrel to the previously loaded forward dome. The barrel is one of five barrels, which along with the forward and aft domes, make up the liquid hydrogen tank for the fourth core stage manufactured at the site. Artemis will pave the way for a long-term human presence on the lunar surface while ushering in the Golden Age of Innovation and Exploration.

Teams lift a liquid hydrogen tank barrel into the Vertical Assembly Center at Michoud Assembly Facility in New Orleans, on July 25, 2025. Inside the center, teams will perform a circumferential weld to connect the barrel to the previously loaded forward dome. The barrel is one of five barrels, which along with the forward and aft domes, make up the liquid hydrogen tank for the fourth core stage manufactured at the site. Artemis will pave the way for a long-term human presence on the lunar surface while ushering in the Golden Age of Innovation and Exploration.

Teams lift a liquid hydrogen tank barrel into the Vertical Assembly Center at Michoud Assembly Facility in New Orleans, on July 25, 2025. Inside the center, teams will perform a circumferential weld to connect the barrel to the previously loaded forward dome. The barrel is one of five barrels, which along with the forward and aft domes, make up the liquid hydrogen tank for the fourth core stage manufactured at the site. Artemis will pave the way for a long-term human presence on the lunar surface while ushering in the Golden Age of Innovation and Exploration.

Move crews at NASA’s Michoud Assembly Facility in New Orleans lift the aft dome for the liquid hydrogen tank for the fourth core stage of NASA’s SLS (Space Launch System), into the in-feeder of the facility’s vertical assembly center. Once loaded into the production tool, teams with SLS prime contractor, Boeing, will circumferentially friction-stir weld the dome to the previously-welded forward dome and five barrels that make up the liquid hydrogen tank. The SLS core stage liquid hydrogen tank holds 537,000 gallons of super-cooled propellant and is one of five unique elements that make up the SLS core stage. Together with the forward skirt, liquid oxygen tank, intertank, and engine section, the liquid hydrogen tank will provide propellant to the four RS-25 engines to produce more than two million pounds of thrust to help launch NASA’s Orion spacecraft, astronauts, and supplies beyond Earth’s orbit to the Moon.

Move crews at NASA’s Michoud Assembly Facility in New Orleans lift the aft dome for the liquid hydrogen tank for the fourth core stage of NASA’s SLS (Space Launch System), into the in-feeder of the facility’s vertical assembly center. Once loaded into the production tool, teams with SLS prime contractor, Boeing, will circumferentially friction-stir weld the dome to the previously-welded forward dome and five barrels that make up the liquid hydrogen tank. The SLS core stage liquid hydrogen tank holds 537,000 gallons of super-cooled propellant and is one of five unique elements that make up the SLS core stage. Together with the forward skirt, liquid oxygen tank, intertank, and engine section, the liquid hydrogen tank will provide propellant to the four RS-25 engines to produce more than two million pounds of thrust to help launch NASA’s Orion spacecraft, astronauts, and supplies beyond Earth’s orbit to the Moon.

Move crews at NASA’s Michoud Assembly Facility lift the aft liquid oxygen tank (LOX) barrel out of the Vertical Weld Center (VWC) for its next phase of production. The aft barrel will eventually be mated with the forward barrel and the forward and aft domes to form the LOX tank, which will be used in the Space Launch System’s (SLS) Artemis IV mission. The LOX tank holds 196,000 gallons of super-cooled liquid oxygen to help fuel four RS-25 engines. The SLS core stage is made up of five unique elements: the forward skirt, liquid oxygen tank, intertank, liquid hydrogen tank, and the engine section. The liquid oxygen hardware, along with the liquid hydrogen tank will provide propellant to the four RS-25 engines to produce more than two million pounds of thrust to help launch NASA’s Orion spacecraft, astronauts, and supplies beyond Earth’s orbit to the Moon. Together with its four RS-25 engines, the rocket’s massive 212-foot-tall core stage — the largest stage NASA has ever built — and its twin solid rocket boosters will produce 8.8 million pounds of thrust to send NASA’s Orion spacecraft, astronauts, and supplies beyond Earth’s orbit to the Moon and, ultimately, Mars. Offering more payload mass, volume capability and energy to speed missions through space, the SLS rocket, along with NASA’s Gateway in lunar orbit, the Human Landing System, and Orion spacecraft, is part of NASA’s backbone for deep space exploration and the Artemis lunar program. No other rocket is capable of carrying astronauts in Orion around the Moon in a single mission. Photographed on Tuesday, May 10, 2022

Move crews at NASA’s Michoud Assembly Facility lift the aft liquid oxygen tank (LOX) barrel out of the Vertical Weld Center (VWC) for its next phase of production. The aft barrel will eventually be mated with the forward barrel and the forward and aft domes to form the LOX tank, which will be used in the Space Launch System’s (SLS) Artemis IV mission. The LOX tank holds 196,000 gallons of super-cooled liquid oxygen to help fuel four RS-25 engines. The SLS core stage is made up of five unique elements: the forward skirt, liquid oxygen tank, intertank, liquid hydrogen tank, and the engine section. The liquid oxygen hardware, along with the liquid hydrogen tank will provide propellant to the four RS-25 engines to produce more than two million pounds of thrust to help launch NASA’s Orion spacecraft, astronauts, and supplies beyond Earth’s orbit to the Moon. Together with its four RS-25 engines, the rocket’s massive 212-foot-tall core stage — the largest stage NASA has ever built — and its twin solid rocket boosters will produce 8.8 million pounds of thrust to send NASA’s Orion spacecraft, astronauts, and supplies beyond Earth’s orbit to the Moon and, ultimately, Mars. Offering more payload mass, volume capability and energy to speed missions through space, the SLS rocket, along with NASA’s Gateway in lunar orbit, the Human Landing System, and Orion spacecraft, is part of NASA’s backbone for deep space exploration and the Artemis lunar program. No other rocket is capable of carrying astronauts in Orion around the Moon in a single mission. Photographed on Tuesday, May 10, 2022

Move crews at NASA’s Michoud Assembly Facility lift the aft liquid oxygen tank (LOX) barrel out of the Vertical Weld Center (VWC) for its next phase of production. The aft barrel will eventually be mated with the forward barrel and the forward and aft domes to form the LOX tank, which will be used in the Space Launch System’s (SLS) Artemis IV mission. The LOX tank holds 196,000 gallons of super-cooled liquid oxygen to help fuel four RS-25 engines. The SLS core stage is made up of five unique elements: the forward skirt, liquid oxygen tank, intertank, liquid hydrogen tank, and the engine section. The liquid oxygen hardware, along with the liquid hydrogen tank will provide propellant to the four RS-25 engines to produce more than two million pounds of thrust to help launch NASA’s Orion spacecraft, astronauts, and supplies beyond Earth’s orbit to the Moon. Together with its four RS-25 engines, the rocket’s massive 212-foot-tall core stage — the largest stage NASA has ever built — and its twin solid rocket boosters will produce 8.8 million pounds of thrust to send NASA’s Orion spacecraft, astronauts, and supplies beyond Earth’s orbit to the Moon and, ultimately, Mars. Offering more payload mass, volume capability and energy to speed missions through space, the SLS rocket, along with NASA’s Gateway in lunar orbit, the Human Landing System, and Orion spacecraft, is part of NASA’s backbone for deep space exploration and the Artemis lunar program. No other rocket is capable of carrying astronauts in Orion around the Moon in a single mission. Photographed on Tuesday, May 10, 2022

Move crews at NASA’s Michoud Assembly Facility lift the aft liquid oxygen tank (LOX) barrel out of the Vertical Weld Center (VWC) for its next phase of production. The aft barrel will eventually be mated with the forward barrel and the forward and aft domes to form the LOX tank, which will be used in the Space Launch System’s (SLS) Artemis IV mission. The LOX tank holds 196,000 gallons of super-cooled liquid oxygen to help fuel four RS-25 engines. The SLS core stage is made up of five unique elements: the forward skirt, liquid oxygen tank, intertank, liquid hydrogen tank, and the engine section. The liquid oxygen hardware, along with the liquid hydrogen tank will provide propellant to the four RS-25 engines to produce more than two million pounds of thrust to help launch NASA’s Orion spacecraft, astronauts, and supplies beyond Earth’s orbit to the Moon. Together with its four RS-25 engines, the rocket’s massive 212-foot-tall core stage — the largest stage NASA has ever built — and its twin solid rocket boosters will produce 8.8 million pounds of thrust to send NASA’s Orion spacecraft, astronauts, and supplies beyond Earth’s orbit to the Moon and, ultimately, Mars. Offering more payload mass, volume capability and energy to speed missions through space, the SLS rocket, along with NASA’s Gateway in lunar orbit, the Human Landing System, and Orion spacecraft, is part of NASA’s backbone for deep space exploration and the Artemis lunar program. No other rocket is capable of carrying astronauts in Orion around the Moon in a single mission. Photographed on Tuesday, May 10, 2022

Move crews at NASA’s Michoud Assembly Facility lift the aft liquid oxygen tank (LOX) barrel out of the Vertical Weld Center (VWC) for its next phase of production. The aft barrel will eventually be mated with the forward barrel and the forward and aft domes to form the LOX tank, which will be used in the Space Launch System’s (SLS) Artemis IV mission. The LOX tank holds 196,000 gallons of super-cooled liquid oxygen to help fuel four RS-25 engines. The SLS core stage is made up of five unique elements: the forward skirt, liquid oxygen tank, intertank, liquid hydrogen tank, and the engine section. The liquid oxygen hardware, along with the liquid hydrogen tank will provide propellant to the four RS-25 engines to produce more than two million pounds of thrust to help launch NASA’s Orion spacecraft, astronauts, and supplies beyond Earth’s orbit to the Moon. Together with its four RS-25 engines, the rocket’s massive 212-foot-tall core stage — the largest stage NASA has ever built — and its twin solid rocket boosters will produce 8.8 million pounds of thrust to send NASA’s Orion spacecraft, astronauts, and supplies beyond Earth’s orbit to the Moon and, ultimately, Mars. Offering more payload mass, volume capability and energy to speed missions through space, the SLS rocket, along with NASA’s Gateway in lunar orbit, the Human Landing System, and Orion spacecraft, is part of NASA’s backbone for deep space exploration and the Artemis lunar program. No other rocket is capable of carrying astronauts in Orion around the Moon in a single mission. Photographed on Tuesday, May 10, 2022

This imagery shows how technicians at NASA’s Michoud Assembly Facility moved the aft dome of the liquid oxygen tank for NASA’s SLS (Space Launch System) rocket for the next phase of production inside the Vertical Assembly center Dec. 5. The dome will form part of the core stage that will power NASA’s Artemis III mission. Engineers will soon rotate the dome to attach it to the previously joined forward dome and aft barrel segments using friction-stir welding. The liquid oxygen tank is one of five major components that make up the SLS rocket’s core stage. Together with the forward skirt, intertank, liquid hydrogen tank, engine section, along with the four RS-25 engines at its base, the 212-foot core stage will help power NASA’s Artemis missions to the Moon. Image credit: NASA/Michael DeMocker

This imagery shows how technicians at NASA’s Michoud Assembly Facility moved the aft dome of the liquid oxygen tank for NASA’s SLS (Space Launch System) rocket for the next phase of production inside the Vertical Assembly center Dec. 5. The dome will form part of the core stage that will power NASA’s Artemis III mission. Engineers will soon rotate the dome to attach it to the previously joined forward dome and aft barrel segments using friction-stir welding. The liquid oxygen tank is one of five major components that make up the SLS rocket’s core stage. Together with the forward skirt, intertank, liquid hydrogen tank, engine section, along with the four RS-25 engines at its base, the 212-foot core stage will help power NASA’s Artemis missions to the Moon.

This imagery shows how technicians at NASA’s Michoud Assembly Facility moved the aft dome of the liquid oxygen tank for NASA’s SLS (Space Launch System) rocket for the next phase of production inside the Vertical Assembly center Dec. 5. The dome will form part of the core stage that will power NASA’s Artemis III mission. Engineers will soon rotate the dome to attach it to the previously joined forward dome and aft barrel segments using friction-stir welding. The liquid oxygen tank is one of five major components that make up the SLS rocket’s core stage. Together with the forward skirt, intertank, liquid hydrogen tank, engine section, along with the four RS-25 engines at its base, the 212-foot core stage will help power NASA’s Artemis missions to the Moon.

This imagery shows how technicians at NASA’s Michoud Assembly Facility moved the aft dome of the liquid oxygen tank for NASA’s SLS (Space Launch System) rocket for the next phase of production inside the Vertical Assembly center Dec. 5. The dome will form part of the core stage that will power NASA’s Artemis III mission. Engineers will soon rotate the dome to attach it to the previously joined forward dome and aft barrel segments using friction-stir welding. The liquid oxygen tank is one of five major components that make up the SLS rocket’s core stage. Together with the forward skirt, intertank, liquid hydrogen tank, engine section, along with the four RS-25 engines at its base, the 212-foot core stage will help power NASA’s Artemis missions to the Moon.

Crews at NASA’s Michoud Assembly Facility in New Orleans lift the forward skirt of a core stage that will power NASA’s Space Launch System (SLS) rocket out of the Vertical Weld Center Sept. 16, 2022. The forward skirt will be used for NASA’s Artemis IV mission. The hardware houses flight computers, cameras, and avionics systems for the SLS rocket. The SLS core stage is made up of five unique elements: the forward skirt, liquid oxygen tank, intertank, liquid hydrogen tank, and the engine section. When fully stacked, the forward skirt is located at the top of the 212-foot-tall core stage and connects to the upper part of the rocket. The core stage and its four RS-25 engines provide more than 2 million pounds of thrust to help power NASA’s next-generation lunar missions. Image credit: NASA/Michael DeMocker

This imagery shows how technicians at NASA’s Michoud Assembly Facility moved the aft dome of the liquid oxygen tank for NASA’s SLS (Space Launch System) rocket for the next phase of production inside the Vertical Assembly center Dec. 5. The dome will form part of the core stage that will power NASA’s Artemis III mission. Engineers will soon rotate the dome to attach it to the previously joined forward dome and aft barrel segments using friction-stir welding. The liquid oxygen tank is one of five major components that make up the SLS rocket’s core stage. Together with the forward skirt, intertank, liquid hydrogen tank, engine section, along with the four RS-25 engines at its base, the 212-foot core stage will help power NASA’s Artemis missions to the Moon. Image credit: NASA/Michael DeMocker

This imagery shows how technicians at NASA’s Michoud Assembly Facility moved the aft dome of the liquid oxygen tank for NASA’s SLS (Space Launch System) rocket for the next phase of production inside the Vertical Assembly center Dec. 5. The dome will form part of the core stage that will power NASA’s Artemis III mission. Engineers will soon rotate the dome to attach it to the previously joined forward dome and aft barrel segments using friction-stir welding. The liquid oxygen tank is one of five major components that make up the SLS rocket’s core stage. Together with the forward skirt, intertank, liquid hydrogen tank, engine section, along with the four RS-25 engines at its base, the 212-foot core stage will help power NASA’s Artemis missions to the Moon.

This imagery shows how technicians at NASA’s Michoud Assembly Facility moved the aft dome of the liquid oxygen tank for NASA’s SLS (Space Launch System) rocket for the next phase of production inside the Vertical Assembly center Dec. 6. The dome will form part of the core stage that will power NASA’s Artemis III mission. Engineers will soon rotate the dome to attach it to the previously joined forward dome and aft barrel segments using friction-stir welding. The liquid oxygen tank is one of five major components that make up the SLS rocket’s core stage. Together with the forward skirt, intertank, liquid hydrogen tank, engine section, along with the four RS-25 engines at its base, the 212-foot core stage will help power NASA’s Artemis missions to the Moon. Image credit: NASA/Michael DeMocker

Crews at NASA’s Michoud Assembly Facility in New Orleans lift the forward skirt of a core stage that will power NASA’s Space Launch System (SLS) rocket out of the Vertical Weld Center Sept. 16, 2022. The forward skirt will be used for NASA’s Artemis IV mission. The hardware houses flight computers, cameras, and avionics systems for the SLS rocket. The SLS core stage is made up of five unique elements: the forward skirt, liquid oxygen tank, intertank, liquid hydrogen tank, and the engine section. When fully stacked, the forward skirt is located at the top of the 212-foot-tall core stage and connects to the upper part of the rocket. The core stage and its four RS-25 engines provide more than 2 million pounds of thrust to help power NASA’s next-generation lunar missions. Image credit: NASA/Michael DeMocker

This imagery shows how technicians at NASA’s Michoud Assembly Facility moved the aft dome of the liquid oxygen tank for NASA’s SLS (Space Launch System) rocket for the next phase of production inside the Vertical Assembly center Dec. 5. The dome will form part of the core stage that will power NASA’s Artemis III mission. Engineers will soon rotate the dome to attach it to the previously joined forward dome and aft barrel segments using friction-stir welding. The liquid oxygen tank is one of five major components that make up the SLS rocket’s core stage. Together with the forward skirt, intertank, liquid hydrogen tank, engine section, along with the four RS-25 engines at its base, the 212-foot core stage will help power NASA’s Artemis missions to the Moon. Image credit: NASA/Michael DeMocker

Crews at NASA’s Michoud Assembly Facility in New Orleans lift the forward skirt of a core stage that will power NASA’s Space Launch System (SLS) rocket out of the Vertical Weld Center Sept. 16, 2022. The forward skirt will be used for NASA’s Artemis IV mission. The hardware houses flight computers, cameras, and avionics systems for the SLS rocket. The SLS core stage is made up of five unique elements: the forward skirt, liquid oxygen tank, intertank, liquid hydrogen tank, and the engine section. When fully stacked, the forward skirt is located at the top of the 212-foot-tall core stage and connects to the upper part of the rocket. The core stage and its four RS-25 engines provide more than 2 million pounds of thrust to help power NASA’s next-generation lunar missions. Image credit: NASA/Michael DeMocker

Crews at NASA’s Michoud Assembly Facility in New Orleans lift the forward skirt of a core stage that will power NASA’s Space Launch System (SLS) rocket out of the Vertical Weld Center Sept. 16, 2022. The forward skirt will be used for NASA’s Artemis IV mission. The hardware houses flight computers, cameras, and avionics systems for the SLS rocket. The SLS core stage is made up of five unique elements: the forward skirt, liquid oxygen tank, intertank, liquid hydrogen tank, and the engine section. When fully stacked, the forward skirt is located at the top of the 212-foot-tall core stage and connects to the upper part of the rocket. The core stage and its four RS-25 engines provide more than 2 million pounds of thrust to help power NASA’s next-generation lunar missions. Image credit: NASA/Michael DeMocker

This imagery shows how technicians at NASA’s Michoud Assembly Facility moved the aft dome of the liquid oxygen tank for NASA’s SLS (Space Launch System) rocket for the next phase of production inside the Vertical Assembly center Dec. 5. The dome will form part of the core stage that will power NASA’s Artemis III mission. Engineers will soon rotate the dome to attach it to the previously joined forward dome and aft barrel segments using friction-stir welding. The liquid oxygen tank is one of five major components that make up the SLS rocket’s core stage. Together with the forward skirt, intertank, liquid hydrogen tank, engine section, along with the four RS-25 engines at its base, the 212-foot core stage will help power NASA’s Artemis missions to the Moon. Image credit: NASA/Michael DeMocker

KENNEDY SPACE CENTER, FLA. - In the Vehicle Assembly Building, Lead Technician Todd Reeves, with United Space Alliance, moves a bolt catcher into place between the Solid Rocket Booster and left and the External Tank at right.A bolt catcher is a vertical bolt mechanism at the forward end of the External Tank that attaches each booster to the tank. At approximately two minutes into launch, SRB separation begins when pyrotechnic devices fire to break the 25-inch, 62-pound steel bolts. One half of the bolt is caught in canister-like 'bolt catchers' located on the tank; the other half remains with the boosters. Discovery is flying with a modified bolt catcher, which was upgraded from a two-piece welded design to a one-piece, machine-made design as part of NASA's effort to return to safe, reliable spaceflight. Eliminating the weld makes a structurally stronger bolt catcher design. Though the bolt catcher is mounted on the External Tank, it is considered part of the Solid Rocket Booster element design. It is built by Summa Technologies, Inc. in Huntsville, Ala., insulated at Lockheed Martin’s Michoud Assembly Facility in New Orleans, and installed on the External Tank at KSC.

KENNEDY SPACE CENTER, FLA. - In the Vehicle Assembly Building, Senior Technician Kevin Reagan, with United Space Alliance, prepares one of two bolt catchers for installation on orbiter Discovery’s External Tank. A bolt catcher is a vertical bolt mechanism at the forward end of the External Tank that attaches each booster to the tank. At approximately two minutes into launch, SRB separation begins when pyrotechnic devices fire to break the 25-inch, 62-pound steel bolts. One half of the bolt is caught in canister-like 'bolt catchers' located on the tank; the other half remains with the boosters. Discovery is flying with a modified bolt catcher, which was upgraded from a two-piece welded design to a one-piece, machine-made design as part of NASA's effort to return to safe, reliable spaceflight. Eliminating the weld makes a structurally stronger bolt catcher design. Though the bolt catcher is mounted on the External Tank, it is considered part of the Solid Rocket Booster element design. It is built by Summa Technologies, Inc. in Huntsville, Ala., insulated at Lockheed Martin’s Michoud Assembly Facility in New Orleans, and installed on the External Tank at KSC.

KENNEDY SPACE CENTER, FLA. - These two bolt catchers are ready for installation on orbiter Discovery’s External Tank. A bolt catcher is a vertical bolt mechanism at the forward end of the External Tank that attaches each booster to the tank. At approximately two minutes into launch, SRB separation begins when pyrotechnic devices fire to break the 25-inch, 62-pound steel bolts. One half of the bolt is caught in canister-like 'bolt catchers' located on the tank; the other half remains with the boosters. Discovery is flying with a modified bolt catcher, which was upgraded from a two-piece welded design to a one-piece, machine-made design as part of NASA's effort to return to safe, reliable spaceflight. Eliminating the weld makes a structurally stronger bolt catcher design. Though the bolt catcher is mounted on the External Tank, it is considered part of the Solid Rocket Booster element design. It is built by Summa Technologies, Inc. in Huntsville, Ala., insulated at Lockheed Martin’s Michoud Assembly Facility in New Orleans, and installed on the External Tank at KSC.

KENNEDY SPACE CENTER, FLA. - In the Vehicle Assembly Building, Lead Technician Todd Reeves, with United Space Alliance, attaches one of two bolt catchers on orbiter Discovery’s External Tank. A bolt catcher is a vertical bolt mechanism at the forward end of the External Tank that attaches each booster to the tank. At approximately two minutes into launch, SRB separation begins when pyrotechnic devices fire to break the 25-inch, 62-pound steel bolts. One half of the bolt is caught in canister-like 'bolt catchers' located on the tank; the other half remains with the boosters. Discovery is flying with a modified bolt catcher, which was upgraded from a two-piece welded design to a one-piece, machine-made design as part of NASA's effort to return to safe, reliable spaceflight. Eliminating the weld makes a structurally stronger bolt catcher design. Though the bolt catcher is mounted on the External Tank, it is considered part of the Solid Rocket Booster element design. It is built by Summa Technologies, Inc. in Huntsville, Ala., insulated at Lockheed Martin’s Michoud Assembly Facility in New Orleans, and installed on the External Tank at KSC.

KENNEDY SPACE CENTER, FLA. - In the Vehicle Assembly Building, workers prepare these two bolt catchers for installation on orbiter Discovery’s External Tank. A bolt catcher is a vertical bolt mechanism at the forward end of the External Tank that attaches each booster to the tank. At approximately two minutes into launch, SRB separation begins when pyrotechnic devices fire to break the 25-inch, 62-pound steel bolts. One half of the bolt is caught in canister-like 'bolt catchers' located on the tank; the other half remains with the boosters. Discovery is flying with a modified bolt catcher, which was upgraded from a two-piece welded design to a one-piece, machine-made design as part of NASA's effort to return to safe, reliable spaceflight. Eliminating the weld makes a structurally stronger bolt catcher design. Though the bolt catcher is mounted on the External Tank, it is considered part of the Solid Rocket Booster element design. It is built by Summa Technologies, Inc. in Huntsville, Ala., insulated at Lockheed Martin’s Michoud Assembly Facility in New Orleans, and installed on the External Tank at KSC.

Move crews at NASA’s Michoud Assembly Facility in New Orleans lift the aft dome for the liquid hydrogen tank for the fourth core stage of NASA’s SLS (Space Launch System), into the in-feeder of the facility’s vertical assembly center. Once loaded into the production tool, teams with SLS prime contractor, Boeing, will circumferentially friction-stir weld the dome to the previously-welded forward dome and five barrels that make up the liquid hydrogen tank. The SLS core stage liquid hydrogen tank holds 537,000 gallons of super-cooled propellant and is one of five unique elements that make up the SLS core stage. Together with the forward skirt, liquid oxygen tank, intertank, and engine section, the liquid hydrogen tank will provide propellant to the four RS-25 engines to produce more than two million pounds of thrust to help launch NASA’s Orion spacecraft, astronauts, and supplies beyond Earth’s orbit to the Moon. Image credit: NASA/Michael DeMocker

Move crews at NASA’s Michoud Assembly Facility in New Orleans lift the aft dome for the liquid hydrogen tank for the fourth core stage of NASA’s SLS (Space Launch System), into the in-feeder of the facility’s vertical assembly center. Once loaded into the production tool, teams with SLS prime contractor, Boeing, will circumferentially friction-stir weld the dome to the previously-welded forward dome and five barrels that make up the liquid hydrogen tank. The SLS core stage liquid hydrogen tank holds 537,000 gallons of super-cooled propellant and is one of five unique elements that make up the SLS core stage. Together with the forward skirt, liquid oxygen tank, intertank, and engine section, the liquid hydrogen tank will provide propellant to the four RS-25 engines to produce more than two million pounds of thrust to help launch NASA’s Orion spacecraft, astronauts, and supplies beyond Earth’s orbit to the Moon. Image credit: NASA/Michael DeMocker

Move crews at NASA’s Michoud Assembly Facility in New Orleans lift the aft dome for the liquid hydrogen tank for the fourth core stage of NASA’s SLS (Space Launch System), into the in-feeder of the facility’s vertical assembly center. Once loaded into the production tool, teams with SLS prime contractor, Boeing, will circumferentially friction-stir weld the dome to the previously-welded forward dome and five barrels that make up the liquid hydrogen tank. The SLS core stage liquid hydrogen tank holds 537,000 gallons of super-cooled propellant and is one of five unique elements that make up the SLS core stage. Together with the forward skirt, liquid oxygen tank, intertank, and engine section, the liquid hydrogen tank will provide propellant to the four RS-25 engines to produce more than two million pounds of thrust to help launch NASA’s Orion spacecraft, astronauts, and supplies beyond Earth’s orbit to the Moon. Image credit: NASA/Michael DeMocker

Move crews at NASA’s Michoud Assembly Facility in New Orleans lift the aft dome for the liquid hydrogen tank for the fourth core stage of NASA’s SLS (Space Launch System), into the in-feeder of the facility’s vertical assembly center. Once loaded into the production tool, teams with SLS prime contractor, Boeing, will circumferentially friction-stir weld the dome to the previously-welded forward dome and five barrels that make up the liquid hydrogen tank. The SLS core stage liquid hydrogen tank holds 537,000 gallons of super-cooled propellant and is one of five unique elements that make up the SLS core stage. Together with the forward skirt, liquid oxygen tank, intertank, and engine section, the liquid hydrogen tank will provide propellant to the four RS-25 engines to produce more than two million pounds of thrust to help launch NASA’s Orion spacecraft, astronauts, and supplies beyond Earth’s orbit to the Moon. Image credit: NASA/Michael DeMocker

Move crews at NASA’s Michoud Assembly Facility in New Orleans lift the aft dome for the liquid hydrogen tank for the fourth core stage of NASA’s SLS (Space Launch System), into the in-feeder of the facility’s vertical assembly center. Once loaded into the production tool, teams with SLS prime contractor, Boeing, will circumferentially friction-stir weld the dome to the previously-welded forward dome and five barrels that make up the liquid hydrogen tank. The SLS core stage liquid hydrogen tank holds 537,000 gallons of super-cooled propellant and is one of five unique elements that make up the SLS core stage. Together with the forward skirt, liquid oxygen tank, intertank, and engine section, the liquid hydrogen tank will provide propellant to the four RS-25 engines to produce more than two million pounds of thrust to help launch NASA’s Orion spacecraft, astronauts, and supplies beyond Earth’s orbit to the Moon. Image credit: NASA/Michael DeMocker

Move crews at NASA’s Michoud Assembly Facility in New Orleans lift the aft dome for the liquid hydrogen tank for the fourth core stage of NASA’s SLS (Space Launch System), into the in-feeder of the facility’s vertical assembly center. Once loaded into the production tool, teams with SLS prime contractor, Boeing, will circumferentially friction-stir weld the dome to the previously-welded forward dome and five barrels that make up the liquid hydrogen tank. The SLS core stage liquid hydrogen tank holds 537,000 gallons of super-cooled propellant and is one of five unique elements that make up the SLS core stage. Together with the forward skirt, liquid oxygen tank, intertank, and engine section, the liquid hydrogen tank will provide propellant to the four RS-25 engines to produce more than two million pounds of thrust to help launch NASA’s Orion spacecraft, astronauts, and supplies beyond Earth’s orbit to the Moon. Image credit: NASA/Michael DeMocker

Move crews at NASA’s Michoud Assembly Facility in New Orleans lift the aft dome for the liquid hydrogen tank for the fourth core stage of NASA’s SLS (Space Launch System), into the in-feeder of the facility’s vertical assembly center. Once loaded into the production tool, teams with SLS prime contractor, Boeing, will circumferentially friction-stir weld the dome to the previously-welded forward dome and five barrels that make up the liquid hydrogen tank. The SLS core stage liquid hydrogen tank holds 537,000 gallons of super-cooled propellant and is one of five unique elements that make up the SLS core stage. Together with the forward skirt, liquid oxygen tank, intertank, and engine section, the liquid hydrogen tank will provide propellant to the four RS-25 engines to produce more than two million pounds of thrust to help launch NASA’s Orion spacecraft, astronauts, and supplies beyond Earth’s orbit to the Moon. Image credit: NASA/Michael DeMocker

Move crews at NASA’s Michoud Assembly Facility in New Orleans lift the aft dome for the liquid hydrogen tank for the fourth core stage of NASA’s SLS (Space Launch System), into the in-feeder of the facility’s vertical assembly center. Once loaded into the production tool, teams with SLS prime contractor, Boeing, will circumferentially friction-stir weld the dome to the previously-welded forward dome and five barrels that make up the liquid hydrogen tank. The SLS core stage liquid hydrogen tank holds 537,000 gallons of super-cooled propellant and is one of five unique elements that make up the SLS core stage. Together with the forward skirt, liquid oxygen tank, intertank, and engine section, the liquid hydrogen tank will provide propellant to the four RS-25 engines to produce more than two million pounds of thrust to help launch NASA’s Orion spacecraft, astronauts, and supplies beyond Earth’s orbit to the Moon. Image credit: NASA/Michael DeMocker

This imagery shows how technicians at NASA’s Michoud Assembly Facility moved the aft dome of the liquid oxygen tank for NASA’s SLS (Space Launch System) rocket for the next phase of production inside the Vertical Assembly center Dec. 18. The dome will form part of the core stage that will power NASA’s Artemis III mission. Engineers rotate the dome to attach it to the previously joined forward dome and aft barrel segments using friction-stir welding. The liquid oxygen tank is one of five major components that make up the SLS rocket’s core stage. Together with the forward skirt, intertank, liquid hydrogen tank, engine section, along with the four RS-25 engines at its base, the 212-foot core stage will help power NASA’s Artemis missions to the Moon.

This imagery shows how technicians at NASA’s Michoud Assembly Facility moved the aft dome of the liquid oxygen tank for NASA’s SLS (Space Launch System) rocket for the next phase of production inside the Vertical Assembly center Dec. 18. The dome will form part of the core stage that will power NASA’s Artemis III mission. Engineers rotate the dome to attach it to the previously joined forward dome and aft barrel segments using friction-stir welding. The liquid oxygen tank is one of five major components that make up the SLS rocket’s core stage. Together with the forward skirt, intertank, liquid hydrogen tank, engine section, along with the four RS-25 engines at its base, the 212-foot core stage will help power NASA’s Artemis missions to the Moon.

Teams at NASA’s Michoud Assembly Facility in New Orleans move the forward skirt, which will be used on the SLS (Space Launch System) rocket’s core stage for the agency’s Artemis IV mission, into the vertical assembly center on Dec. 2. Inside the tooling, the forward skirt receives its forward and aft rings through a circumferential friction-stir welding process. Seven rings are used in the production of the core stage. They provide stiffening for the dome structures on the propellant tanks and, as on the forward skirt, serve as attachment points for the major components to form the SLS core stage. The forward skirt is one of five major elements that make up the 212-foot-tall rocket stage. The core stage, along with its four RS-25 engines, produce more than two million pounds of thrust to help launch NASA’s Orion spacecraft, astronauts, and supplies beyond Earth’s orbit and to the lunar surface for Artemis.

Teams at NASA’s Michoud Assembly Facility in New Orleans move the forward skirt, which will be used on the SLS (Space Launch System) rocket’s core stage for the agency’s Artemis IV mission, into the vertical assembly center on Dec. 2. Inside the tooling, the forward skirt receives its forward and aft rings through a circumferential friction-stir welding process. Seven rings are used in the production of the core stage. They provide stiffening for the dome structures on the propellant tanks and, as on the forward skirt, serve as attachment points for the major components to form the SLS core stage. The forward skirt is one of five major elements that make up the 212-foot-tall rocket stage. The core stage, along with its four RS-25 engines, produce more than two million pounds of thrust to help launch NASA’s Orion spacecraft, astronauts, and supplies beyond Earth’s orbit and to the lunar surface for Artemis.

This imagery shows how technicians at NASA’s Michoud Assembly Facility moved the aft dome of the liquid oxygen tank for NASA’s SLS (Space Launch System) rocket for the next phase of production inside the Vertical Assembly center Dec. 18. The dome will form part of the core stage that will power NASA’s Artemis III mission. Engineers rotate the dome to attach it to the previously joined forward dome and aft barrel segments using friction-stir welding. The liquid oxygen tank is one of five major components that make up the SLS rocket’s core stage. Together with the forward skirt, intertank, liquid hydrogen tank, engine section, along with the four RS-25 engines at its base, the 212-foot core stage will help power NASA’s Artemis missions to the Moon.

This imagery shows how technicians at NASA’s Michoud Assembly Facility moved the aft dome of the liquid oxygen tank for NASA’s SLS (Space Launch System) rocket for the next phase of production inside the Vertical Assembly center Dec. 18. The dome will form part of the core stage that will power NASA’s Artemis III mission. Engineers rotate the dome to attach it to the previously joined forward dome and aft barrel segments using friction-stir welding. The liquid oxygen tank is one of five major components that make up the SLS rocket’s core stage. Together with the forward skirt, intertank, liquid hydrogen tank, engine section, along with the four RS-25 engines at its base, the 212-foot core stage will help power NASA’s Artemis missions to the Moon.

A SpaceX Falcon 9 rocket, with the company’s Dragon spacecraft atop, stands in a vertical position at Launch Complex 39A at NASA’s Kennedy Space Center in Florida on Monday, Nov. 4, 2024, in preparation for the 31st commercial resupply services launch to the International Space Station. Dragon will deliver several new experiments, including the Coronal Diagnostic Experiment, to examine solar wind and how it forms. Dragon also delivers Antarctic moss to observe the combined effects of cosmic radiation and microgravity on plants. Other investigations aboard include a device to test cold welding of metals in microgravity, and an investigation that studies how space impacts different materials. Liftoff is scheduled for 9:29 p.m. EST on Monday, Nov. 4.

This imagery shows how technicians at NASA’s Michoud Assembly Facility moved the aft dome of the liquid oxygen tank for NASA’s SLS (Space Launch System) rocket for the next phase of production inside the Vertical Assembly center Dec. 18. The dome will form part of the core stage that will power NASA’s Artemis III mission. Engineers rotate the dome to attach it to the previously joined forward dome and aft barrel segments using friction-stir welding. The liquid oxygen tank is one of five major components that make up the SLS rocket’s core stage. Together with the forward skirt, intertank, liquid hydrogen tank, engine section, along with the four RS-25 engines at its base, the 212-foot core stage will help power NASA’s Artemis missions to the Moon.

This imagery shows how technicians at NASA’s Michoud Assembly Facility moved the aft dome of the liquid oxygen tank for NASA’s SLS (Space Launch System) rocket for the next phase of production inside the Vertical Assembly center Dec. 18. The dome will form part of the core stage that will power NASA’s Artemis III mission. Engineers rotate the dome to attach it to the previously joined forward dome and aft barrel segments using friction-stir welding. The liquid oxygen tank is one of five major components that make up the SLS rocket’s core stage. Together with the forward skirt, intertank, liquid hydrogen tank, engine section, along with the four RS-25 engines at its base, the 212-foot core stage will help power NASA’s Artemis missions to the Moon.

This imagery shows how technicians at NASA’s Michoud Assembly Facility moved the aft dome of the liquid oxygen tank for NASA’s SLS (Space Launch System) rocket for the next phase of production inside the Vertical Assembly center Dec. 18. The dome will form part of the core stage that will power NASA’s Artemis III mission. Engineers rotate the dome to attach it to the previously joined forward dome and aft barrel segments using friction-stir welding. The liquid oxygen tank is one of five major components that make up the SLS rocket’s core stage. Together with the forward skirt, intertank, liquid hydrogen tank, engine section, along with the four RS-25 engines at its base, the 212-foot core stage will help power NASA’s Artemis missions to the Moon.

A SpaceX Falcon 9 rocket, with the company’s Dragon spacecraft atop, stands in a vertical position at Launch Complex 39A at NASA’s Kennedy Space Center in Florida on Monday, Nov. 4, 2024, in preparation for the 31st commercial resupply services launch to the International Space Station. Dragon will deliver several new experiments, including the Coronal Diagnostic Experiment, to examine solar wind and how it forms. Dragon also delivers Antarctic moss to observe the combined effects of cosmic radiation and microgravity on plants. Other investigations aboard include a device to test cold welding of metals in microgravity, and an investigation that studies how space impacts different materials. Liftoff is scheduled for 9:29 p.m. EST on Monday, Nov. 4.

Teams at NASA’s Michoud Assembly Facility in New Orleans move the forward skirt, which will be used on the SLS (Space Launch System) rocket’s core stage for the agency’s Artemis IV mission, into the vertical assembly center on Dec. 2. Inside the tooling, the forward skirt receives its forward and aft rings through a circumferential friction-stir welding process. Seven rings are used in the production of the core stage. They provide stiffening for the dome structures on the propellant tanks and, as on the forward skirt, serve as attachment points for the major components to form the SLS core stage. The forward skirt is one of five major elements that make up the 212-foot-tall rocket stage. The core stage, along with its four RS-25 engines, produce more than two million pounds of thrust to help launch NASA’s Orion spacecraft, astronauts, and supplies beyond Earth’s orbit and to the lunar surface for Artemis.

This imagery shows how technicians at NASA’s Michoud Assembly Facility moved the aft dome of the liquid oxygen tank for NASA’s SLS (Space Launch System) rocket for the next phase of production inside the Vertical Assembly center Dec. 18. The dome will form part of the core stage that will power NASA’s Artemis III mission. Engineers rotate the dome to attach it to the previously joined forward dome and aft barrel segments using friction-stir welding. The liquid oxygen tank is one of five major components that make up the SLS rocket’s core stage. Together with the forward skirt, intertank, liquid hydrogen tank, engine section, along with the four RS-25 engines at its base, the 212-foot core stage will help power NASA’s Artemis missions to the Moon.

A SpaceX Falcon 9 rocket, with the company’s Dragon spacecraft atop, stands in a vertical position at Launch Complex 39A at NASA’s Kennedy Space Center in Florida on Monday, Nov. 4, 2024, in preparation for the 31st commercial resupply services launch to the International Space Station. Dragon will deliver several new experiments, including the Coronal Diagnostic Experiment, to examine solar wind and how it forms. Dragon also delivers Antarctic moss to observe the combined effects of cosmic radiation and microgravity on plants. Other investigations aboard include a device to test cold welding of metals in microgravity, and an investigation that studies how space impacts different materials. Liftoff is scheduled for 9:29 p.m. EST on Monday, Nov. 4.

This imagery shows how technicians at NASA’s Michoud Assembly Facility moved the aft dome of the liquid oxygen tank for NASA’s SLS (Space Launch System) rocket for the next phase of production inside the Vertical Assembly center Dec. 18. The dome will form part of the core stage that will power NASA’s Artemis III mission. Engineers rotate the dome to attach it to the previously joined forward dome and aft barrel segments using friction-stir welding. The liquid oxygen tank is one of five major components that make up the SLS rocket’s core stage. Together with the forward skirt, intertank, liquid hydrogen tank, engine section, along with the four RS-25 engines at its base, the 212-foot core stage will help power NASA’s Artemis missions to the Moon.

This imagery shows how technicians at NASA’s Michoud Assembly Facility moved the aft dome of the liquid oxygen tank for NASA’s SLS (Space Launch System) rocket for the next phase of production inside the Vertical Assembly center Dec. 18. The dome will form part of the core stage that will power NASA’s Artemis III mission. Engineers rotate the dome to attach it to the previously joined forward dome and aft barrel segments using friction-stir welding. The liquid oxygen tank is one of five major components that make up the SLS rocket’s core stage. Together with the forward skirt, intertank, liquid hydrogen tank, engine section, along with the four RS-25 engines at its base, the 212-foot core stage will help power NASA’s Artemis missions to the Moon.

This imagery shows how technicians at NASA’s Michoud Assembly Facility moved the aft dome of the liquid oxygen tank for NASA’s SLS (Space Launch System) rocket for the next phase of production inside the Vertical Assembly center Dec. 18. The dome will form part of the core stage that will power NASA’s Artemis III mission. Engineers rotate the dome to attach it to the previously joined forward dome and aft barrel segments using friction-stir welding. The liquid oxygen tank is one of five major components that make up the SLS rocket’s core stage. Together with the forward skirt, intertank, liquid hydrogen tank, engine section, along with the four RS-25 engines at its base, the 212-foot core stage will help power NASA’s Artemis missions to the Moon.