The flight design of Axiom Space's Axiom Extravehicular Mobility Unit (AxEMU) lunar spacesuit that NASA astronauts will wear during the Artemis III mission. Image Credit: Axiom Space

The flight design of Axiom Space's Axiom Extravehicular Mobility Unit (AxEMU) lunar spacesuit that NASA astronauts will wear during the Artemis III mission. Image Credit: Axiom Space

Technicians work on the Artemis III Orion crew module inside the Operations and Checkout Building at NASA's Kennedy Space Center in Florida on March 5, 2025.

Teams prepare for the installation of the engine nozzle onto the European Service Module for NASA’s Artemis III mission on Tuesday, Feb. 17, 2026, inside the high bay of the Neil A. Armstrong Operations and Checkout Building at NASA’s Kennedy Space Center in Florida. The service module provides the Orion spacecraft’s propulsion, thermal control, electrical power, and life support systems during the Artemis III mission to send humans to explore the lunar South Pole region.

Teams prepare for the installation of the engine nozzle onto the European Service Module for NASA’s Artemis III mission on Tuesday, Feb. 17, 2026, inside the high bay of the Neil A. Armstrong Operations and Checkout Building at NASA’s Kennedy Space Center in Florida. The service module provides the Orion spacecraft’s propulsion, thermal control, electrical power, and life support systems during the Artemis III mission to send humans to explore the lunar South Pole region.

The Artemis III Orion service module in work inside the Operations and Checkout Building at NASA's Kennedy Space Center in Florida on March 5, 2025.

Technicians work on the Artemis III Orion crew module inside the Operations and Checkout Building at NASA's Kennedy Space Center in Florida on March 5, 2025.

The Orion spacecraft for NASA’s crewed Artemis II (right), Artemis III (left), and Artemis IV (center) missions are stationed next to each other inside the high bay of the Neil Armstrong Operations and Checkout Building at NASA’s Kennedy Space Center in Florida on June 22, 2023. Each capsule is in a different stage of production as technicians and engineers prepare the spacecraft to carry astronauts to and around the Moon on their upcoming flights.

The Orion spacecraft for the Artemis III mission is in view inside a clean room in the high bay of the Neil Armstrong Operations and Checkout Building at NASA’s Kennedy Space Center in Florida on June 22, 2023. The Orion spacecraft is being prepared for its launch atop the Space Launch System rocket on Artemis III, which will send astronauts, including the first woman and first person of color, on a mission to the surface of the Moon.

The Orion spacecraft for the Artemis III mission is in view in the high bay of the Neil Armstrong Operations and Checkout Building at NASA’s Kennedy Space Center in Florida on June 22, 2023. The Orion spacecraft is being prepared for its launch atop the Space Launch System rocket on Artemis III, which will send astronauts, including the first woman and first person of color, on a mission to the surface of the Moon.

A protective wrapping is being removed from the Orion spacecraft for the Artemis III mission inside a clean room in the high bay of the Neil Armstrong Operations and Checkout Building at NASA’s Kennedy Space Center in Florida on June 22, 2023. The Orion spacecraft is being prepared for its launch atop the Space Launch System rocket on Artemis III, which will send astronauts, including the first woman and first person of color, on a mission to the surface of the Moon.

The solid rocket booster aft skirt segments for NASA’s Artemis III SLS (Space Launch System) rocket arrive at a rail yard near the agency’s Kennedy Space Center in Florida on Wednesday, April 8, 2026. Comprising the bottom of the rocket’s twin, five-segment solid rocket boosters, the aft skirt segments traveled by train in specialized transporters to the Florida spaceport and will be transferred from the rail yard to NASA Kennedy’s Rotation, Processing and Surge Facility for processing. The Artemis III mission will launch crew in the Orion spacecraft on top of the SLS rocket to test rendezvous and docking capabilities between Orion and commercial spacecraft needed to land astronauts on the Moon. 

The solid rocket booster aft skirt segments for NASA’s Artemis III SLS (Space Launch System) rocket arrive at a rail yard near the agency’s Kennedy Space Center in Florida on Wednesday, April 8, 2026. Comprising the bottom of the rocket’s twin, five-segment solid rocket boosters, the aft skirt segments traveled by train in specialized transporters to the Florida spaceport and will be transferred from the rail yard to NASA Kennedy’s Rotation, Processing and Surge Facility for processing. The Artemis III mission will launch crew in the Orion spacecraft on top of the SLS rocket to test rendezvous and docking capabilities between Orion and commercial spacecraft needed to land astronauts on the Moon. 

The solid rocket booster aft skirt segments for NASA’s Artemis III SLS (Space Launch System) rocket arrive at a rail yard near the agency’s Kennedy Space Center in Florida on Wednesday, April 8, 2026. Comprising the bottom of the rocket’s twin, five-segment solid rocket boosters, the aft skirt segments traveled by train in specialized transporters to the Florida spaceport and will be transferred from the rail yard to NASA Kennedy’s Rotation, Processing and Surge Facility for processing. The Artemis III mission will launch crew in the Orion spacecraft on top of the SLS rocket to test rendezvous and docking capabilities between Orion and commercial spacecraft needed to land astronauts on the Moon. 

The solid rocket booster aft skirt segments for NASA’s Artemis III SLS (Space Launch System) rocket arrive at a rail yard near the agency’s Kennedy Space Center in Florida on Wednesday, April 8, 2026. Comprising the bottom of the rocket’s twin, five-segment solid rocket boosters, the aft skirt segments traveled by train in specialized transporters to the Florida spaceport and will be transferred from the rail yard to NASA Kennedy’s Rotation, Processing and Surge Facility for processing. The Artemis III mission will launch crew in the Orion spacecraft on top of the SLS rocket to test rendezvous and docking capabilities between Orion and commercial spacecraft needed to land astronauts on the Moon. 

The solid rocket booster aft skirt segments for NASA’s Artemis III SLS (Space Launch System) rocket arrive at a rail yard near the agency’s Kennedy Space Center in Florida on Wednesday, April 8, 2026. Comprising the bottom of the rocket’s twin, five-segment solid rocket boosters, the aft skirt segments traveled by train in specialized transporters to the Florida spaceport and will be transferred from the rail yard to NASA Kennedy’s Rotation, Processing and Surge Facility for processing. The Artemis III mission will launch crew in the Orion spacecraft on top of the SLS rocket to test rendezvous and docking capabilities between Orion and commercial spacecraft needed to land astronauts on the Moon. 

The solid rocket booster aft skirt segments for NASA’s Artemis III SLS (Space Launch System) rocket arrive at a rail yard near the agency’s Kennedy Space Center in Florida on Wednesday, April 8, 2026. Comprising the bottom of the rocket’s twin, five-segment solid rocket boosters, the aft skirt segments traveled by train in specialized transporters to the Florida spaceport and will be transferred from the rail yard to NASA Kennedy’s Rotation, Processing and Surge Facility for processing. The Artemis III mission will launch crew in the Orion spacecraft on top of the SLS rocket to test rendezvous and docking capabilities between Orion and commercial spacecraft needed to land astronauts on the Moon. 

The solid rocket booster aft skirt segments for NASA’s Artemis III SLS (Space Launch System) rocket arrive at a rail yard near the agency’s Kennedy Space Center in Florida on Wednesday, April 8, 2026. Comprising the bottom of the rocket’s twin, five-segment solid rocket boosters, the aft skirt segments traveled by train in specialized transporters to the Florida spaceport and will be transferred from the rail yard to NASA Kennedy’s Rotation, Processing and Surge Facility for processing. The Artemis III mission will launch crew in the Orion spacecraft on top of the SLS rocket to test rendezvous and docking capabilities between Orion and commercial spacecraft needed to land astronauts on the Moon. 

The solid rocket booster aft skirt segments for NASA’s Artemis III SLS (Space Launch System) rocket arrive at a rail yard near the agency’s Kennedy Space Center in Florida on Wednesday, April 8, 2026. Comprising the bottom of the rocket’s twin, five-segment solid rocket boosters, the aft skirt segments traveled by train in specialized transporters to the Florida spaceport and will be transferred from the rail yard to NASA Kennedy’s Rotation, Processing and Surge Facility for processing. The Artemis III mission will launch crew in the Orion spacecraft on top of the SLS rocket to test rendezvous and docking capabilities between Orion and commercial spacecraft needed to land astronauts on the Moon. 

Teams from Kennedy lift NASA’s integrated Artemis III SLS (Space Launch System) core stage engine section with its boat-tail inside the center’s Vehicle Assembly Building at NASA’s Kennedy Space Center in Florida on Wednesday, Aug. 13, 2025. Shown inside the facility’s High Bay 2 for processing, 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 Kennedy Space Center in Florida transport the engine section of the agency’s Artemis III SLS (Space Launch System) core stage from the spaceport’s Space Systems Processing Facility to the center’s Vehicle Assembly Building on Tuesday, July 29, 2025. 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 Kennedy Space Center in Florida transport the engine section of the agency’s Artemis III SLS (Space Launch System) core stage from the spaceport’s Space Systems Processing Facility to the center’s Vehicle Assembly Building on Tuesday, July 29, 2025. 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 Kennedy Space Center in Florida transport the engine section of the agency’s Artemis III SLS (Space Launch System) core stage from the spaceport’s Space Systems Processing Facility to the center’s Vehicle Assembly Building on Tuesday, July 29, 2025. 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 Kennedy lift NASA’s integrated Artemis III SLS (Space Launch System) core stage engine section with its boat-tail inside the center’s Vehicle Assembly Building at NASA’s Kennedy Space Center in Florida on Wednesday, Aug. 13, 2025. Shown inside the facility’s High Bay 2 for processing, 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 Kennedy Space Center in Florida transport the engine section of the agency’s Artemis III SLS (Space Launch System) core stage from the spaceport’s Space Systems Processing Facility to the center’s Vehicle Assembly Building on Tuesday, July 29, 2025. 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 Kennedy Space Center in Florida transport the engine section of the agency’s Artemis III SLS (Space Launch System) core stage from the spaceport’s Space Systems Processing Facility to the center’s Vehicle Assembly Building on Tuesday, July 29, 2025. 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 Kennedy lift NASA’s integrated Artemis III SLS (Space Launch System) core stage engine section with its boat-tail inside the center’s Vehicle Assembly Building at NASA’s Kennedy Space Center in Florida on Wednesday, Aug. 13, 2025. Shown inside the facility’s High Bay 2 for processing, 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. 

NASA crew members practice emergency rescue drills during simulated lunar surface operations at NASA’s Neutral Buoyancy Laboratory where teams evaluate how well crew perform tasks while wearing the Artemis III lunar spacesuit developed by Axiom Space called the AxEMU (Axiom Extravehicular Mobility Unit).

A NASA crew member practices simulated lunar surface operations at NASA’s Neutral Buoyancy Laboratory where teams evaluate how well crew perform tasks while wearing the Artemis III lunar spacesuit developed by Axiom Space called the AxEMU (Axiom Extravehicular Mobility Unit).

NASA’s Artemis III core stage boat-tail and RS-25 engines are shown inside the Space Systems Processing Facility at NASA’s Kennedy Space Center in Florida on Tuesday, Sept. 10, 2024. Used during the assembly of the SLS (Space Launch System) core stage for Artemis III, the boat tail is a fairing-like structure that protects the bottom end of the core stage. NASA’s Pegasus barge delivered the boat-tail, along with other hardware for future Artemis campaigns to NASA Kennedy on Thursday, Sept. 5, 2024.

NASA’s Artemis III core stage boat-tail and RS-25 engines are shown inside the Space Systems Processing Facility at NASA’s Kennedy Space Center in Florida on Tuesday, Sept. 10, 2024. Used during the assembly of the SLS (Space Launch System) core stage for Artemis III, the boat tail is a fairing-like structure that protects the bottom end of the core stage. NASA’s Pegasus barge delivered the boat-tail, along with other hardware for future Artemis campaigns to NASA Kennedy on Thursday, Sept. 5, 2024.

The engine section of the Space Launch System rocket’s core stage for NASA’s Artemis III mission is moved on a work stand into the high bay of the Space Station Processing Facility (SSPF) at NASA’s Kennedy Space Center in Florida on Dec. 15, 2022. The section was shipped from Michoud Assembly Facility in New Orleans on Dec. 10, 2022 aboard the Pegasus barge, was offloaded, and transferred to the SSPF. Teams will begin processing operations ahead of final integration in the Vehicle Assembly Building. Artemis III will send astronauts, including the first woman and first person of color, on a mission aboard the Orion spacecraft to the surface of the Moon.

The engine section of the Space Launch System rocket’s core stage for NASA’s Artemis III mission arrives at the Space Station Processing Facility (SSPF) at NASA’s Kennedy Space Center in Florida on Dec. 15, 2022. The section was shipped from Michoud Assembly Facility in New Orleans on Dec. 10, 2022 aboard the Pegasus barge, was offloaded, and transferred to the SSPF. Teams will begin processing operations ahead of final integration in the Vehicle Assembly Building. Artemis III will send astronauts, including the first woman and first person of color, on a mission aboard the Orion spacecraft to the surface of the Moon.

Technicians assist as the engine section of the Space Launch System rocket’s core stage for NASA’s Artemis III mission is moved into the high bay of the Space Station Processing Facility (SSPF) at NASA’s Kennedy Space Center in Florida on Dec. 15, 2022. The section was shipped from Michoud Assembly Facility in New Orleans on Dec. 10, 2022 aboard the Pegasus barge, was offloaded, and transferred to the SSPF. Teams will begin processing operations ahead of final integration in the Vehicle Assembly Building. Artemis III will send astronauts, including the first woman and first person of color, on a mission aboard the Orion spacecraft to the surface of the Moon.

The upper stage for NASA’s SLS (Space Launch System) rocket that will power the agency’s Artemis III mission and send astronauts on to the Moon for a lunar landing arrived at the Cape Canaveral Space Force Station Poseidon Wharf in Florida on Aug. 9, 2023. Known as the SLS ICPS (interim cryogenic propulsion stage), it will undergo final checkouts by contractors Boeing and ULA (United Launch Alliance) at ULA’s facilities before it is delivered to NASA’s nearby Kennedy Space Center.

The core stage liquid hydrogen tank for the Artemis III mission completed proof testing, and technicians returned it to the main factory building at NASA’s Michoud Assembly Facility in New Orleans where it will undergo more outfitting. As part of proof testing, technicians apply a simple soap solution and check for leaks by observing any bubble formation on the welds. The technician removed the bubble solution with distilled water and then dried the area of application to prevent corrosion. To build the Space Launch System (SLS) rocket’s 130-foot core stage liquid hydrogen tank, engineers use robotic tools to weld five-barrel segments. This process results in a tank with around 1,900 feet, or more than six football fields, of welds that must be tested by hand. After the leak tests, the core stage lead, Boeing, pressurized the SLS tank to further ensure there were no leaks. After it passed proof testing, technicians moved the Artemis III liquid hydrogen tank to Michoud’s main factory. Soon, the technicians will prime and apply a foam-based thermal protection system that protects the tank during launch. Later, the tank will be joined with other parts of the core stage to form the entire 212-foot rocket stage with its four RS-25 engines that produce 2 million pounds of thrust to help launch the rocket. Artemis III will land the first astronauts on the lunar surface.

NASA moved the core stage, or the largest section, of the SLS (Space Launch System) rocket that will launch the crewed Artemis III mission in 2027 from the agency’s Michoud Assembly Facility to the agency’s Pegasus barge in New Orleans on April 20. The barge will ferry the top four-fifths – the section containing the liquid hydrogen tank, liquid oxygen tank, intertank, and forward skirt – of the SLS core stage to NASA’s Kennedy Space Center in Florida to complete outfitting and vertical integration. Teams with NASA and Boeing, the SLS core stage lead contractor, used specialized transporters to guide the top four-fifths from the NASA rocket factory to Pegasus. Prior to the move, technicians added an engine section transportation simulator to the rocket stage for shipment to the Space Coast. Next year’s Artemis III mission will launch astronauts to Earth’s orbit aboard the Orion spacecraft on top of SLS to test rendezvous and docking capabilities between Orion and commercial spacecraft needed to land Artemis IV astronauts on the Moon in 2028. NASA’s SLS is the only rocket capable of sending Orion, astronauts, and supplies to the Moon in a single launch.

NASA moved the core stage, or the largest section, of the SLS (Space Launch System) rocket that will launch the crewed Artemis III mission in 2027 from the agency’s Michoud Assembly Facility to the agency’s Pegasus barge in New Orleans on April 20. The barge will ferry the top four-fifths – the section containing the liquid hydrogen tank, liquid oxygen tank, intertank, and forward skirt – of the SLS core stage to NASA’s Kennedy Space Center in Florida to complete outfitting and vertical integration. Teams with NASA and Boeing, the SLS core stage lead contractor, used specialized transporters to guide the top four-fifths from the NASA rocket factory to Pegasus. Prior to the move, technicians added an engine section transportation simulator to the rocket stage for shipment to the Space Coast. Next year’s Artemis III mission will launch astronauts to Earth’s orbit aboard the Orion spacecraft on top of SLS to test rendezvous and docking capabilities between Orion and commercial spacecraft needed to land Artemis IV astronauts on the Moon in 2028. NASA’s SLS is the only rocket capable of sending Orion, astronauts, and supplies to the Moon in a single launch.

NASA moved the core stage, or the largest section, of the SLS (Space Launch System) rocket that will launch the crewed Artemis III mission in 2027 from the agency’s Michoud Assembly Facility to the agency’s Pegasus barge in New Orleans on April 20. The barge will ferry the top four-fifths – the section containing the liquid hydrogen tank, liquid oxygen tank, intertank, and forward skirt – of the SLS core stage to NASA’s Kennedy Space Center in Florida to complete outfitting and vertical integration. Teams with NASA and Boeing, the SLS core stage lead contractor, used specialized transporters to guide the top four-fifths from the NASA rocket factory to Pegasus. Prior to the move, technicians added an engine section transportation simulator to the rocket stage for shipment to the Space Coast. Next year’s Artemis III mission will launch astronauts to Earth’s orbit aboard the Orion spacecraft on top of SLS to test rendezvous and docking capabilities between Orion and commercial spacecraft needed to land Artemis IV astronauts on the Moon in 2028. NASA’s SLS is the only rocket capable of sending Orion, astronauts, and supplies to the Moon in a single launch.

NASA moved the core stage, or the largest section, of the SLS (Space Launch System) rocket that will launch the crewed Artemis III mission in 2027 from the agency’s Michoud Assembly Facility to the agency’s Pegasus barge in New Orleans on April 20. The barge will ferry the top four-fifths – the section containing the liquid hydrogen tank, liquid oxygen tank, intertank, and forward skirt – of the SLS core stage to NASA’s Kennedy Space Center in Florida to complete outfitting and vertical integration. Teams with NASA and Boeing, the SLS core stage lead contractor, used specialized transporters to guide the top four-fifths from the NASA rocket factory to Pegasus. Prior to the move, technicians added an engine section transportation simulator to the rocket stage for shipment to the Space Coast. Next year’s Artemis III mission will launch astronauts to Earth’s orbit aboard the Orion spacecraft on top of SLS to test rendezvous and docking capabilities between Orion and commercial spacecraft needed to land Artemis IV astronauts on the Moon in 2028. NASA’s SLS is the only rocket capable of sending Orion, astronauts, and supplies to the Moon in a single launch.

NASA moved the core stage, or the largest section, of the SLS (Space Launch System) rocket that will launch the crewed Artemis III mission in 2027 from the agency’s Michoud Assembly Facility to the agency’s Pegasus barge in New Orleans on April 20. The barge will ferry the top four-fifths – the section containing the liquid hydrogen tank, liquid oxygen tank, intertank, and forward skirt – of the SLS core stage to NASA’s Kennedy Space Center in Florida to complete outfitting and vertical integration. Teams with NASA and Boeing, the SLS core stage lead contractor, used specialized transporters to guide the top four-fifths from the NASA rocket factory to Pegasus. Prior to the move, technicians added an engine section transportation simulator to the rocket stage for shipment to the Space Coast. Next year’s Artemis III mission will launch astronauts to Earth’s orbit aboard the Orion spacecraft on top of SLS to test rendezvous and docking capabilities between Orion and commercial spacecraft needed to land Artemis IV astronauts on the Moon in 2028. NASA’s SLS is the only rocket capable of sending Orion, astronauts, and supplies to the Moon in a single launch.

NASA moved the core stage, or the largest section, of the SLS (Space Launch System) rocket that will launch the crewed Artemis III mission in 2027 from the agency’s Michoud Assembly Facility to the agency’s Pegasus barge in New Orleans on April 20. The barge will ferry the top four-fifths – the section containing the liquid hydrogen tank, liquid oxygen tank, intertank, and forward skirt – of the SLS core stage to NASA’s Kennedy Space Center in Florida to complete outfitting and vertical integration. Teams with NASA and Boeing, the SLS core stage lead contractor, used specialized transporters to guide the top four-fifths from the NASA rocket factory to Pegasus. Prior to the move, technicians added an engine section transportation simulator to the rocket stage for shipment to the Space Coast. Next year’s Artemis III mission will launch astronauts to Earth’s orbit aboard the Orion spacecraft on top of SLS to test rendezvous and docking capabilities between Orion and commercial spacecraft needed to land Artemis IV astronauts on the Moon in 2028. NASA’s SLS is the only rocket capable of sending Orion, astronauts, and supplies to the Moon in a single launch. Photo Credit: NASA/Eric Bordelon

NASA moved the core stage, or the largest section, of the SLS (Space Launch System) rocket that will launch the crewed Artemis III mission in 2027 from the agency’s Michoud Assembly Facility to the agency’s Pegasus barge in New Orleans on April 20. The barge will ferry the top four-fifths – the section containing the liquid hydrogen tank, liquid oxygen tank, intertank, and forward skirt – of the SLS core stage to NASA’s Kennedy Space Center in Florida to complete outfitting and vertical integration. Teams with NASA and Boeing, the SLS core stage lead contractor, used specialized transporters to guide the top four-fifths from the NASA rocket factory to Pegasus. Prior to the move, technicians added an engine section transportation simulator to the rocket stage for shipment to the Space Coast. Next year’s Artemis III mission will launch astronauts to Earth’s orbit aboard the Orion spacecraft on top of SLS to test rendezvous and docking capabilities between Orion and commercial spacecraft needed to land Artemis IV astronauts on the Moon in 2028. NASA’s SLS is the only rocket capable of sending Orion, astronauts, and supplies to the Moon in a single launch. Photo Credit: NASA/Eric Bordelon

NASA moved the core stage, or the largest section, of the SLS (Space Launch System) rocket that will launch the crewed Artemis III mission in 2027 from the agency’s Michoud Assembly Facility to the agency’s Pegasus barge in New Orleans on April 20. The barge will ferry the top four-fifths – the section containing the liquid hydrogen tank, liquid oxygen tank, intertank, and forward skirt – of the SLS core stage to NASA’s Kennedy Space Center in Florida to complete outfitting and vertical integration. Teams with NASA and Boeing, the SLS core stage lead contractor, used specialized transporters to guide the top four-fifths from the NASA rocket factory to Pegasus. Prior to the move, technicians added an engine section transportation simulator to the rocket stage for shipment to the Space Coast. Next year’s Artemis III mission will launch astronauts to Earth’s orbit aboard the Orion spacecraft on top of SLS to test rendezvous and docking capabilities between Orion and commercial spacecraft needed to land Artemis IV astronauts on the Moon in 2028. NASA’s SLS is the only rocket capable of sending Orion, astronauts, and supplies to the Moon in a single launch. Photo Credit: NASA/Eric Bordelon

NASA moved the core stage, or the largest section, of the SLS (Space Launch System) rocket that will launch the crewed Artemis III mission in 2027 from the agency’s Michoud Assembly Facility to the agency’s Pegasus barge in New Orleans on April 20. The barge will ferry the top four-fifths – the section containing the liquid hydrogen tank, liquid oxygen tank, intertank, and forward skirt – of the SLS core stage to NASA’s Kennedy Space Center in Florida to complete outfitting and vertical integration. Teams with NASA and Boeing, the SLS core stage lead contractor, used specialized transporters to guide the top four-fifths from the NASA rocket factory to Pegasus. Prior to the move, technicians added an engine section transportation simulator to the rocket stage for shipment to the Space Coast. Next year’s Artemis III mission will launch astronauts to Earth’s orbit aboard the Orion spacecraft on top of SLS to test rendezvous and docking capabilities between Orion and commercial spacecraft needed to land Artemis IV astronauts on the Moon in 2028. NASA’s SLS is the only rocket capable of sending Orion, astronauts, and supplies to the Moon in a single launch. Photo Credit: NASA/Eric Bordelon

NASA moved the core stage, or the largest section, of the SLS (Space Launch System) rocket that will launch the crewed Artemis III mission in 2027 from the agency’s Michoud Assembly Facility to the agency’s Pegasus barge in New Orleans on April 20. The barge will ferry the top four-fifths – the section containing the liquid hydrogen tank, liquid oxygen tank, intertank, and forward skirt – of the SLS core stage to NASA’s Kennedy Space Center in Florida to complete outfitting and vertical integration. Teams with NASA and Boeing, the SLS core stage lead contractor, used specialized transporters to guide the top four-fifths from the NASA rocket factory to Pegasus. Prior to the move, technicians added an engine section transportation simulator to the rocket stage for shipment to the Space Coast. Next year’s Artemis III mission will launch astronauts to Earth’s orbit aboard the Orion spacecraft on top of SLS to test rendezvous and docking capabilities between Orion and commercial spacecraft needed to land Artemis IV astronauts on the Moon in 2028. NASA’s SLS is the only rocket capable of sending Orion, astronauts, and supplies to the Moon in a single launch. Photo Credit: (NASA/Brandon Hancock)

NASA moved the core stage, or the largest section, of the SLS (Space Launch System) rocket that will launch the crewed Artemis III mission in 2027 from the agency’s Michoud Assembly Facility to the agency’s Pegasus barge in New Orleans on April 20. The barge will ferry the top four-fifths – the section containing the liquid hydrogen tank, liquid oxygen tank, intertank, and forward skirt – of the SLS core stage to NASA’s Kennedy Space Center in Florida to complete outfitting and vertical integration. Teams with NASA and Boeing, the SLS core stage lead contractor, used specialized transporters to guide the top four-fifths from the NASA rocket factory to Pegasus. Prior to the move, technicians added an engine section transportation simulator to the rocket stage for shipment to the Space Coast. Next year’s Artemis III mission will launch astronauts to Earth’s orbit aboard the Orion spacecraft on top of SLS to test rendezvous and docking capabilities between Orion and commercial spacecraft needed to land Artemis IV astronauts on the Moon in 2028. NASA’s SLS is the only rocket capable of sending Orion, astronauts, and supplies to the Moon in a single launch. Photo Credit: NASA/Eric Bordelon

NASA moved the core stage, or the largest section, of the SLS (Space Launch System) rocket that will launch the crewed Artemis III mission in 2027 from the agency’s Michoud Assembly Facility to the agency’s Pegasus barge in New Orleans on April 20. The barge will ferry the top four-fifths – the section containing the liquid hydrogen tank, liquid oxygen tank, intertank, and forward skirt – of the SLS core stage to NASA’s Kennedy Space Center in Florida to complete outfitting and vertical integration. Teams with NASA and Boeing, the SLS core stage lead contractor, used specialized transporters to guide the top four-fifths from the NASA rocket factory to Pegasus. Prior to the move, technicians added an engine section transportation simulator to the rocket stage for shipment to the Space Coast. Next year’s Artemis III mission will launch astronauts to Earth’s orbit aboard the Orion spacecraft on top of SLS to test rendezvous and docking capabilities between Orion and commercial spacecraft needed to land Artemis IV astronauts on the Moon in 2028. NASA’s SLS is the only rocket capable of sending Orion, astronauts, and supplies to the Moon in a single launch.

NASA moved the core stage, or the largest section, of the SLS (Space Launch System) rocket that will launch the crewed Artemis III mission in 2027 from the agency’s Michoud Assembly Facility to the agency’s Pegasus barge in New Orleans on April 20. The barge will ferry the top four-fifths – the section containing the liquid hydrogen tank, liquid oxygen tank, intertank, and forward skirt – of the SLS core stage to NASA’s Kennedy Space Center in Florida to complete outfitting and vertical integration. Teams with NASA and Boeing, the SLS core stage lead contractor, used specialized transporters to guide the top four-fifths from the NASA rocket factory to Pegasus. Prior to the move, technicians added an engine section transportation simulator to the rocket stage for shipment to the Space Coast. Next year’s Artemis III mission will launch astronauts to Earth’s orbit aboard the Orion spacecraft on top of SLS to test rendezvous and docking capabilities between Orion and commercial spacecraft needed to land Artemis IV astronauts on the Moon in 2028. NASA’s SLS is the only rocket capable of sending Orion, astronauts, and supplies to the Moon in a single launch.

NASA moved the core stage, or the largest section, of the SLS (Space Launch System) rocket that will launch the crewed Artemis III mission in 2027 from the agency’s Michoud Assembly Facility to the agency’s Pegasus barge in New Orleans on April 20. The barge will ferry the top four-fifths – the section containing the liquid hydrogen tank, liquid oxygen tank, intertank, and forward skirt – of the SLS core stage to NASA’s Kennedy Space Center in Florida to complete outfitting and vertical integration. Teams with NASA and Boeing, the SLS core stage lead contractor, used specialized transporters to guide the top four-fifths from the NASA rocket factory to Pegasus. Prior to the move, technicians added an engine section transportation simulator to the rocket stage for shipment to the Space Coast. Next year’s Artemis III mission will launch astronauts to Earth’s orbit aboard the Orion spacecraft on top of SLS to test rendezvous and docking capabilities between Orion and commercial spacecraft needed to land Artemis IV astronauts on the Moon in 2028. NASA’s SLS is the only rocket capable of sending Orion, astronauts, and supplies to the Moon in a single launch.

NASA moved the core stage, or the largest section, of the SLS (Space Launch System) rocket that will launch the crewed Artemis III mission in 2027 from the agency’s Michoud Assembly Facility to the agency’s Pegasus barge in New Orleans on April 20. The barge will ferry the top four-fifths – the section containing the liquid hydrogen tank, liquid oxygen tank, intertank, and forward skirt – of the SLS core stage to NASA’s Kennedy Space Center in Florida to complete outfitting and vertical integration. Teams with NASA and Boeing, the SLS core stage lead contractor, used specialized transporters to guide the top four-fifths from the NASA rocket factory to Pegasus. Prior to the move, technicians added an engine section transportation simulator to the rocket stage for shipment to the Space Coast. Next year’s Artemis III mission will launch astronauts to Earth’s orbit aboard the Orion spacecraft on top of SLS to test rendezvous and docking capabilities between Orion and commercial spacecraft needed to land Artemis IV astronauts on the Moon in 2028. NASA’s SLS is the only rocket capable of sending Orion, astronauts, and supplies to the Moon in a single launch. Photo Credit: NASA/Eric Bordelon

NASA moved the core stage, or the largest section, of the SLS (Space Launch System) rocket that will launch the crewed Artemis III mission in 2027 from the agency’s Michoud Assembly Facility to the agency’s Pegasus barge in New Orleans on April 20. The barge will ferry the top four-fifths – the section containing the liquid hydrogen tank, liquid oxygen tank, intertank, and forward skirt – of the SLS core stage to NASA’s Kennedy Space Center in Florida to complete outfitting and vertical integration. Teams with NASA and Boeing, the SLS core stage lead contractor, used specialized transporters to guide the top four-fifths from the NASA rocket factory to Pegasus. Prior to the move, technicians added an engine section transportation simulator to the rocket stage for shipment to the Space Coast. Next year’s Artemis III mission will launch astronauts to Earth’s orbit aboard the Orion spacecraft on top of SLS to test rendezvous and docking capabilities between Orion and commercial spacecraft needed to land Artemis IV astronauts on the Moon in 2028. NASA’s SLS is the only rocket capable of sending Orion, astronauts, and supplies to the Moon in a single launch. Photo Credit: NASA/Eric Bordelon

NASA moved the core stage, or the largest section, of the SLS (Space Launch System) rocket that will launch the crewed Artemis III mission in 2027 from the agency’s Michoud Assembly Facility to the agency’s Pegasus barge in New Orleans on April 20. The barge will ferry the top four-fifths – the section containing the liquid hydrogen tank, liquid oxygen tank, intertank, and forward skirt – of the SLS core stage to NASA’s Kennedy Space Center in Florida to complete outfitting and vertical integration. Teams with NASA and Boeing, the SLS core stage lead contractor, used specialized transporters to guide the top four-fifths from the NASA rocket factory to Pegasus. Prior to the move, technicians added an engine section transportation simulator to the rocket stage for shipment to the Space Coast. Next year’s Artemis III mission will launch astronauts to Earth’s orbit aboard the Orion spacecraft on top of SLS to test rendezvous and docking capabilities between Orion and commercial spacecraft needed to land Artemis IV astronauts on the Moon in 2028. NASA’s SLS is the only rocket capable of sending Orion, astronauts, and supplies to the Moon in a single launch. Photo Credit: NASA/Eric Bordelon

NASA moved the core stage, or the largest section, of the SLS (Space Launch System) rocket that will launch the crewed Artemis III mission in 2027 from the agency’s Michoud Assembly Facility to the agency’s Pegasus barge in New Orleans on April 20. The barge will ferry the top four-fifths – the section containing the liquid hydrogen tank, liquid oxygen tank, intertank, and forward skirt – of the SLS core stage to NASA’s Kennedy Space Center in Florida to complete outfitting and vertical integration. Teams with NASA and Boeing, the SLS core stage lead contractor, used specialized transporters to guide the top four-fifths from the NASA rocket factory to Pegasus. Prior to the move, technicians added an engine section transportation simulator to the rocket stage for shipment to the Space Coast. Next year’s Artemis III mission will launch astronauts to Earth’s orbit aboard the Orion spacecraft on top of SLS to test rendezvous and docking capabilities between Orion and commercial spacecraft needed to land Artemis IV astronauts on the Moon in 2028. NASA’s SLS is the only rocket capable of sending Orion, astronauts, and supplies to the Moon in a single launch. Photo Credit: NASA/Eric Bordelon

NASA moved the core stage, or the largest section, of the SLS (Space Launch System) rocket that will launch the crewed Artemis III mission in 2027 from the agency’s Michoud Assembly Facility to the agency’s Pegasus barge in New Orleans on April 20. The barge will ferry the top four-fifths – the section containing the liquid hydrogen tank, liquid oxygen tank, intertank, and forward skirt – of the SLS core stage to NASA’s Kennedy Space Center in Florida to complete outfitting and vertical integration. Teams with NASA and Boeing, the SLS core stage lead contractor, used specialized transporters to guide the top four-fifths from the NASA rocket factory to Pegasus. Prior to the move, technicians added an engine section transportation simulator to the rocket stage for shipment to the Space Coast. Next year’s Artemis III mission will launch astronauts to Earth’s orbit aboard the Orion spacecraft on top of SLS to test rendezvous and docking capabilities between Orion and commercial spacecraft needed to land Artemis IV astronauts on the Moon in 2028. NASA’s SLS is the only rocket capable of sending Orion, astronauts, and supplies to the Moon in a single launch.

NASA moved the core stage, or the largest section, of the SLS (Space Launch System) rocket that will launch the crewed Artemis III mission in 2027 from the agency’s Michoud Assembly Facility to the agency’s Pegasus barge in New Orleans on April 20. The barge will ferry the top four-fifths – the section containing the liquid hydrogen tank, liquid oxygen tank, intertank, and forward skirt – of the SLS core stage to NASA’s Kennedy Space Center in Florida to complete outfitting and vertical integration. Teams with NASA and Boeing, the SLS core stage lead contractor, used specialized transporters to guide the top four-fifths from the NASA rocket factory to Pegasus. Prior to the move, technicians added an engine section transportation simulator to the rocket stage for shipment to the Space Coast. Next year’s Artemis III mission will launch astronauts to Earth’s orbit aboard the Orion spacecraft on top of SLS to test rendezvous and docking capabilities between Orion and commercial spacecraft needed to land Artemis IV astronauts on the Moon in 2028. NASA’s SLS is the only rocket capable of sending Orion, astronauts, and supplies to the Moon in a single launch.

NASA moved the core stage, or the largest section, of the SLS (Space Launch System) rocket that will launch the crewed Artemis III mission in 2027 from the agency’s Michoud Assembly Facility to the agency’s Pegasus barge in New Orleans on April 20. The barge will ferry the top four-fifths – the section containing the liquid hydrogen tank, liquid oxygen tank, intertank, and forward skirt – of the SLS core stage to NASA’s Kennedy Space Center in Florida to complete outfitting and vertical integration. Teams with NASA and Boeing, the SLS core stage lead contractor, used specialized transporters to guide the top four-fifths from the NASA rocket factory to Pegasus. Prior to the move, technicians added an engine section transportation simulator to the rocket stage for shipment to the Space Coast. Next year’s Artemis III mission will launch astronauts to Earth’s orbit aboard the Orion spacecraft on top of SLS to test rendezvous and docking capabilities between Orion and commercial spacecraft needed to land Artemis IV astronauts on the Moon in 2028. NASA’s SLS is the only rocket capable of sending Orion, astronauts, and supplies to the Moon in a single launch.

NASA moved the core stage, or the largest section, of the SLS (Space Launch System) rocket that will launch the crewed Artemis III mission in 2027 from the agency’s Michoud Assembly Facility to the agency’s Pegasus barge in New Orleans on April 20. The barge will ferry the top four-fifths – the section containing the liquid hydrogen tank, liquid oxygen tank, intertank, and forward skirt – of the SLS core stage to NASA’s Kennedy Space Center in Florida to complete outfitting and vertical integration. Teams with NASA and Boeing, the SLS core stage lead contractor, used specialized transporters to guide the top four-fifths from the NASA rocket factory to Pegasus. Prior to the move, technicians added an engine section transportation simulator to the rocket stage for shipment to the Space Coast. Next year’s Artemis III mission will launch astronauts to Earth’s orbit aboard the Orion spacecraft on top of SLS to test rendezvous and docking capabilities between Orion and commercial spacecraft needed to land Artemis IV astronauts on the Moon in 2028. NASA’s SLS is the only rocket capable of sending Orion, astronauts, and supplies to the Moon in a single launch. Photo Credit: (NASA/Brandon Hancock)

The Orion pressure vessel for NASA’s Artemis III mission is lifted by crane for its move onto a work stand in the high bay of the Neil A. Armstrong Operations and Checkout Building at NASA’s Kennedy Space Center in Florida on Oct. 20, 2021. The pressure vessel will be secured onto the work stand where Lockheed Matin technicians will begin the work to prepare the spacecraft for its launch atop a Space Launch System rocket. Artemis III will send astronauts, including the first woman and first person of color, on a mission to the surface of the Moon by 2024.

The Orion pressure vessel for NASA’s Artemis III mission is moved into the high bay of the Neil A. Armstrong Operations and Checkout Building at NASA’s Kennedy Space Center in Florida on Oct. 20, 2021. The pressure vessel will be secured onto a work stand where Lockheed Matin technicians will begin the work to prepare the spacecraft for its launch atop a Space Launch System rocket. Artemis III will send astronauts, including the first woman and first person of color, on a mission to the surface of the Moon by 2024.

The Orion pressure vessel for NASA’s Artemis III mission is lowered onto a work stand in the high bay of the Neil A. Armstrong Operations and Checkout Building at NASA’s Kennedy Space Center in Florida on Oct. 20, 2021. Lockheed Matin technicians will begin the work to prepare the spacecraft for its launch atop a Space Launch System rocket. Artemis III will send astronauts, including the first woman and first person of color, on a mission to the surface of the Moon by 2024.

A NASA crew member practices using lunar tools to collect geology samples at NASA’s Johnson Space Center during an elevated suit pressure test where teams evaluate how well crew perform tasks in different suit pressure levels while wearing the Artemis III lunar spacesuit developed by Axiom Space called the AxEMU (Axiom Extravehicular Mobility Unit).

A NASA crew member practices simulated lunar surface operations at NASA’s Johnson Space Center during an elevated suit pressure test where teams evaluate how well crew perform tasks in different suit pressure levels while wearing the Artemis III lunar spacesuit developed by Axiom Space called the AxEMU (Axiom Extravehicular Mobility Unit).

A NASA crew member practices simulated lunar surface operations at NASA’s Johnson Space Center during an elevated suit pressure test where teams evaluate how well crew perform tasks in different suit pressure levels while wearing the Artemis III lunar spacesuit developed by Axiom Space called the AxEMU (Axiom Extravehicular Mobility Unit).

The engine section for NASA’s SLS (Space Launch System) rocket for the Artemis III mission is being processed inside the high bay of the Space Station Processing Facility at NASA’s Kennedy Space Center in Florida on June 15. NASA and Boeing, the SLS core stage lead contractor, are installing tubing within the structure. The engine section is one of five major elements that makes up the SLS rocket’s 212-foot-tall core stage. It houses 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. The engine section is one the most complex and intricate parts of the rocket stage that will help to power the Artemis missions to the Moon. NASA’s Pegasus barge delivered the SLS engine section for Artemis III from NASA’s Michoud Assembly Facility in New Orleans in December 2022. Beginning with Artemis III, technicians at the spaceport will finish outfitting the engine section before integrating it with the rest of the rocket stage. In tandem, teams at Michoud will continue to manufacture the major core stage structures.

The left-hand forward solid rocket booster segment for NASA’s Artemis III SLS (Space Launch System) rocket is removed from its shipping container ahead of processing inside the Rotation, Processing and Surge Facility at the agency’s Kennedy Space Center in Florida on Wednesday, April 15, 2026. The SLS rocket’s twin boosters, manufactured by Northrop Grumman in Utah, will provide more than 75 percent of the SLS rocket’s total thrust at launch. The Artemis III mission will launch crew in the Orion spacecraft on top of the SLS rocket to test rendezvous and docking capabilities between Orion and commercial spacecraft needed to land astronauts on the Moon. 

The left-hand forward solid rocket booster segment for NASA’s Artemis III SLS (Space Launch System) rocket is removed from its shipping container ahead of processing inside the Rotation, Processing and Surge Facility at the agency’s Kennedy Space Center in Florida on Wednesday, April 15, 2026. The SLS rocket’s twin boosters, manufactured by Northrop Grumman in Utah, will provide more than 75 percent of the SLS rocket’s total thrust at launch. The Artemis III mission will launch crew in the Orion spacecraft on top of the SLS rocket to test rendezvous and docking capabilities between Orion and commercial spacecraft needed to land astronauts on the Moon. 

The left-hand forward solid rocket booster segment for NASA’s Artemis III SLS (Space Launch System) rocket is removed from its shipping container ahead of processing inside the Rotation, Processing and Surge Facility at the agency’s Kennedy Space Center in Florida on Wednesday, April 15, 2026. The SLS rocket’s twin boosters, manufactured by Northrop Grumman in Utah, will provide more than 75 percent of the SLS rocket’s total thrust at launch. The Artemis III mission will launch crew in the Orion spacecraft on top of the SLS rocket to test rendezvous and docking capabilities between Orion and commercial spacecraft needed to land astronauts on the Moon. 

The left-hand forward solid rocket booster segment for NASA’s Artemis III SLS (Space Launch System) rocket is removed from its shipping container ahead of processing inside the Rotation, Processing and Surge Facility at the agency’s Kennedy Space Center in Florida on Wednesday, April 15, 2026. The SLS rocket’s twin boosters, manufactured by Northrop Grumman in Utah, will provide more than 75 percent of the SLS rocket’s total thrust at launch. The Artemis III mission will launch crew in the Orion spacecraft on top of the SLS rocket to test rendezvous and docking capabilities between Orion and commercial spacecraft needed to land astronauts on the Moon. 

The left-hand forward solid rocket booster segment for NASA’s Artemis III SLS (Space Launch System) rocket is removed from its shipping container ahead of processing inside the Rotation, Processing and Surge Facility at the agency’s Kennedy Space Center in Florida on Wednesday, April 15, 2026. The SLS rocket’s twin boosters, manufactured by Northrop Grumman in Utah, will provide more than 75 percent of the SLS rocket’s total thrust at launch. The Artemis III mission will launch crew in the Orion spacecraft on top of the SLS rocket to test rendezvous and docking capabilities between Orion and commercial spacecraft needed to land astronauts on the Moon. 

The left-hand forward solid rocket booster segment for NASA’s Artemis III SLS (Space Launch System) rocket is removed from its shipping container ahead of processing inside the Rotation, Processing and Surge Facility at the agency’s Kennedy Space Center in Florida on Wednesday, April 15, 2026. The SLS rocket’s twin boosters, manufactured by Northrop Grumman in Utah, will provide more than 75 percent of the SLS rocket’s total thrust at launch. The Artemis III mission will launch crew in the Orion spacecraft on top of the SLS rocket to test rendezvous and docking capabilities between Orion and commercial spacecraft needed to land astronauts on the Moon. 

The Orion crew module for NASA’s Artemis III mission is enclosed on a work stand inside the high bay of the Neil A. Armstrong Operations and Checkout Building at NASA’s Kennedy Space Center in Florida on Jan. 20, 2022. Lockheed Martin technicians are processing and preparing the crew module for its launch atop the Space Launch System rocket. Launched atop the Space Launch System rocket, Artemis missions will aim to send astronauts, including the first woman and first person of color, on a mission to the surface of the Moon.

A close-up view of the Orion crew module for NASA’s Artemis III mission enclosed on a work stand inside the high bay of the Neil A. Armstrong Operations and Checkout Building at NASA’s Kennedy Space Center in Florida on Jan. 20, 2022. Lockheed Martin technicians are processing and preparing the crew module for its launch atop the Space Launch System rocket. Launched atop the Space Launch System rocket, Artemis missions will aim to send astronauts, including the first woman and first person of color, on a mission to the surface of the Moon.

The Orion crew module adapter for NASA’s Artemis III mission is on a work stand inside the high bay of the Neil A. Armstrong Operations and Checkout Building at NASA’s Kennedy Space Center in Florida on Jan. 20, 2022. Lockheed Martin technicians continue working to install the aft walls as the ring-shaped structure is prepared to ultimately be attached to the European-built service module. Launched atop the Space Launch System rocket, Artemis missions will aim to send astronauts, including the first woman and first person of color, on a mission to the surface of the Moon.

The Orion crew module adapter for NASA’s Artemis III mission is on a work stand inside the high bay of the Neil A. Armstrong Operations and Checkout Building at NASA’s Kennedy Space Center in Florida on Jan. 20, 2022. Lockheed Martin technicians continue working to install the aft walls as the ring-shaped structure is prepared to ultimately be attached to the European-built service module. Launched atop the Space Launch System rocket, Artemis missions will aim to send astronauts, including the first woman and first person of color, on a mission to the surface of the Moon.

Technicians at NASA’s Michoud Assembly Facility move a piece of the engine section of NASA’s Space Launch System rocket for Artemis III in preparation for its next step in production. This hardware is the first large piece manufactured for the Artemis III mission and makes up the lowest portion of the 212-foot-tall core stage. When complete, the engine section will house the four RS-25 engines and include vital systems for mounting, controlling and delivering fuel from the propellant tanks to the rocket’s engines. Together with its four RS-25 engines and its twin solid rocket boosters, it 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.

Technicians at NASA’s Michoud Assembly Facility move the engine section of NASA’s Space Launch System rocket for Artemis III in preparation for its next step in production. This hardware is the first large piece manufactured for the Artemis III mission and makes up the lowest portion of the 212-foot-tall core stage. When complete, the engine section will house the four RS-25 engines and include vital systems for mounting, controlling and delivering fuel from the propellant tanks to the rocket’s engines. Together with its four RS-25 engines and its twin solid rocket boosters, it 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.

Technicians at NASA’s Michoud Assembly Facility prime and move the engine section of NASA’s Space Launch System rocket for Artemis III in preparation for its next step in production. This hardware is the first large piece manufactured for the Artemis III mission and makes up the lowest portion of the 212-foot-tall core stage. When complete, the engine section will house the four RS-25 engines and include vital systems for mounting, controlling and delivering fuel from the propellant tanks to the rocket’s engines. Together with its four RS-25 engines and its twin solid rocket boosters, it 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.

Technicians at NASA’s Michoud Assembly Facility move the engine section of NASA’s Space Launch System rocket for Artemis III in preparation for its next step in production. This hardware is the first large piece manufactured for the Artemis III mission and makes up the lowest portion of the 212-foot-tall core stage. When complete, the engine section will house the four RS-25 engines and include vital systems for mounting, controlling and delivering fuel from the propellant tanks to the rocket’s engines. Together with its four RS-25 engines and its twin solid rocket boosters, it 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.

Technicians at NASA’s Michoud Assembly Facility prime and move the engine section of NASA’s Space Launch System rocket for Artemis III in preparation for its next step in production. This hardware is the first large piece manufactured for the Artemis III mission and makes up the lowest portion of the 212-foot-tall core stage. When complete, the engine section will house the four RS-25 engines and include vital systems for mounting, controlling and delivering fuel from the propellant tanks to the rocket’s engines. Together with its four RS-25 engines and its twin solid rocket boosters, it 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.

Technicians at NASA’s Michoud Assembly Facility prime and move the engine section of NASA’s Space Launch System rocket for Artemis III in preparation for its next step in production. This hardware is the first large piece manufactured for the Artemis III mission and makes up the lowest portion of the 212-foot-tall core stage. When complete, the engine section will house the four RS-25 engines and include vital systems for mounting, controlling and delivering fuel from the propellant tanks to the rocket’s engines. Together with its four RS-25 engines and its twin solid rocket boosters, it 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.

Technicians at NASA’s Michoud Assembly Facility prime and move the engine section of NASA’s Space Launch System rocket for Artemis III in preparation for its next step in production. This hardware is the first large piece manufactured for the Artemis III mission and makes up the lowest portion of the 212-foot-tall core stage. When complete, the engine section will house the four RS-25 engines and include vital systems for mounting, controlling and delivering fuel from the propellant tanks to the rocket’s engines. Together with its four RS-25 engines and its twin solid rocket boosters, it 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.

Technicians at NASA’s Michoud Assembly Facility move a piece of the engine section of NASA’s Space Launch System rocket for Artemis III in preparation for its next step in production. This hardware is the first large piece manufactured for the Artemis III mission and makes up the lowest portion of the 212-foot-tall core stage. When complete, the engine section will house the four RS-25 engines and include vital systems for mounting, controlling and delivering fuel from the propellant tanks to the rocket’s engines. Together with its four RS-25 engines and its twin solid rocket boosters, it 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.

Technicians at NASA’s Michoud Assembly Facility move the engine section of NASA’s Space Launch System rocket for Artemis III in preparation for its next step in production. This hardware is the first large piece manufactured for the Artemis III mission and makes up the lowest portion of the 212-foot-tall core stage. When complete, the engine section will house the four RS-25 engines and include vital systems for mounting, controlling and delivering fuel from the propellant tanks to the rocket’s engines. Together with its four RS-25 engines and its twin solid rocket boosters, it 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.

Technicians at NASA’s Michoud Assembly Facility move a piece of the engine section of NASA’s Space Launch System rocket for Artemis III in preparation for its next step in production. This hardware is the first large piece manufactured for the Artemis III mission and makes up the lowest portion of the 212-foot-tall core stage. When complete, the engine section will house the four RS-25 engines and include vital systems for mounting, controlling and delivering fuel from the propellant tanks to the rocket’s engines. Together with its four RS-25 engines and its twin solid rocket boosters, it 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.

Technicians at NASA’s Michoud Assembly Facility prime and move the engine section of NASA’s Space Launch System rocket for Artemis III in preparation for its next step in production. This hardware is the first large piece manufactured for the Artemis III mission and makes up the lowest portion of the 212-foot-tall core stage. When complete, the engine section will house the four RS-25 engines and include vital systems for mounting, controlling and delivering fuel from the propellant tanks to the rocket’s engines. Together with its four RS-25 engines and its twin solid rocket boosters, it 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.

The core stage liquid hydrogen tank for the Artemis III mission completed proof testing, and technicians returned it to the main factory building at NASA’s Michoud Assembly Facility in New Orleans where it will undergo more outfitting. As part of proof testing, technicians apply a simple soap solution and check for leaks by observing any bubble formation on the welds. The technician removed the bubble solution with distilled water and then dried the area of application to prevent corrosion. To build the Space Launch System (SLS) rocket’s 130-foot core stage liquid hydrogen tank, engineers use robotic tools to weld five-barrel segments. This process results in a tank with around 1,900 feet, or more than six football fields, of welds that must be tested by hand. After the leak tests, the core stage lead, Boeing, pressurized the SLS tank to further ensure there were no leaks. After it passed proof testing, technicians moved the Artemis III liquid hydrogen tank to Michoud’s main factory. Soon, the technicians will prime and apply a foam-based thermal protection system that protects the tank during launch. Later, the tank will be joined with other parts of the core stage to form the entire 212-foot rocket stage with its four RS-25 engines that produce 2 million pounds of thrust to help launch the rocket. Artemis III will land the first astronauts on the lunar surface.

The core stage liquid hydrogen tank for the Artemis III mission completed proof testing, and technicians returned it to the main factory building at NASA’s Michoud Assembly Facility in New Orleans where it will undergo more outfitting. As part of proof testing, technicians apply a simple soap solution and check for leaks by observing any bubble formation on the welds. The technician removed the bubble solution with distilled water and then dried the area of application to prevent corrosion. To build the Space Launch System (SLS) rocket’s 130-foot core stage liquid hydrogen tank, engineers use robotic tools to weld five-barrel segments. This process results in a tank with around 1,900 feet, or more than six football fields, of welds that must be tested by hand. After the leak tests, the core stage lead, Boeing, pressurized the SLS tank to further ensure there were no leaks. After it passed proof testing, technicians moved the Artemis III liquid hydrogen tank to Michoud’s main factory. Soon, the technicians will prime and apply a foam-based thermal protection system that protects the tank during launch. Later, the tank will be joined with other parts of the core stage to form the entire 212-foot rocket stage with its four RS-25 engines that produce 2 million pounds of thrust to help launch the rocket. Artemis III will land the first astronauts on the lunar surface.

The core stage liquid hydrogen tank for the Artemis III mission completed proof testing, and technicians returned it to the main factory building at NASA’s Michoud Assembly Facility in New Orleans where it will undergo more outfitting. As part of proof testing, technicians apply a simple soap solution and check for leaks by observing any bubble formation on the welds. The technician removed the bubble solution with distilled water and then dried the area of application to prevent corrosion. To build the Space Launch System (SLS) rocket’s 130-foot core stage liquid hydrogen tank, engineers use robotic tools to weld five-barrel segments. This process results in a tank with around 1,900 feet, or more than six football fields, of welds that must be tested by hand. After the leak tests, the core stage lead, Boeing, pressurized the SLS tank to further ensure there were no leaks. After it passed proof testing, technicians moved the Artemis III liquid hydrogen tank to Michoud’s main factory. Soon, the technicians will prime and apply a foam-based thermal protection system that protects the tank during launch. Later, the tank will be joined with other parts of the core stage to form the entire 212-foot rocket stage with its four RS-25 engines that produce 2 million pounds of thrust to help launch the rocket. Artemis III will land the first astronauts on the lunar surface.

NASA moved the core stage, or the largest section, of the SLS (Space Launch System) rocket that will launch the crewed Artemis III mission in 2027 from the agency’s Michoud Assembly Facility to the agency’s Pegasus barge in New Orleans on April 20. The barge will ferry the top four-fifths – the section containing the liquid hydrogen tank, liquid oxygen tank, intertank, and forward skirt – of the SLS core stage to NASA’s Kennedy Space Center in Florida to complete outfitting and vertical integration. Teams with NASA and Boeing, the SLS core stage lead contractor, used specialized transporters to guide the top four-fifths from the NASA rocket factory to Pegasus. Prior to the move, technicians added an engine section transportation simulator to the rocket stage for shipment to the Space Coast. Next year’s Artemis III mission will launch astronauts to Earth’s orbit aboard the Orion spacecraft on top of SLS to test rendezvous and docking capabilities between Orion and commercial spacecraft needed to land Artemis IV astronauts on the Moon in 2028. NASA’s SLS is the only rocket capable of sending Orion, astronauts, and supplies to the Moon in a single launch. Photo Credit: (NASA/Brandon Hancock)

NASA moved the core stage, or the largest section, of the SLS (Space Launch System) rocket that will launch the crewed Artemis III mission in 2027 from the agency’s Michoud Assembly Facility to the agency’s Pegasus barge in New Orleans on April 20. The barge will ferry the top four-fifths – the section containing the liquid hydrogen tank, liquid oxygen tank, intertank, and forward skirt – of the SLS core stage to NASA’s Kennedy Space Center in Florida to complete outfitting and vertical integration. Teams with NASA and Boeing, the SLS core stage lead contractor, used specialized transporters to guide the top four-fifths from the NASA rocket factory to Pegasus. Prior to the move, technicians added an engine section transportation simulator to the rocket stage for shipment to the Space Coast. Next year’s Artemis III mission will launch astronauts to Earth’s orbit aboard the Orion spacecraft on top of SLS to test rendezvous and docking capabilities between Orion and commercial spacecraft needed to land Artemis IV astronauts on the Moon in 2028. NASA’s SLS is the only rocket capable of sending Orion, astronauts, and supplies to the Moon in a single launch. Photo Credit: (NASA/Brandon Hancock)

Move Crews at NASA’s Michoud Assembly Facility in New Orleans transport a liquid oxygen tank from a detached production building to the main 43-acre rocket factory on Mar. 26. Teams recently completed primer application on the tank, which will be used on the core stage of the agency’s SLS (Space Launch System) rocket for its Artemis III mission. The tank will now undergo electrical installations before moving on to the next phase of production. The propellant tank 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.

Move Crews at NASA’s Michoud Assembly Facility in New Orleans transport a liquid oxygen tank from a detached production building to the main 43-acre rocket factory on Mar. 26. Teams recently completed primer application on the tank, which will be used on the core stage of the agency’s SLS (Space Launch System) rocket for its Artemis III mission. The tank will now undergo electrical installations before moving on to the next phase of production. The propellant tank 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.

NASA pilot Carrie Worth, center, and Tracy Phelps, left, board the Gulfstream G-III aircraft on Friday, March 27, 2026, at NASA’s Armstrong Flight Research Center in Edwards, California. Manny Rodriguez, crew chief, prepares the aircraft for flight. The G-III will join other NASA aircraft to capture imagery of the Orion spacecraft’s heat shield during Artemis II reentry. The mission is part of NASA’s Scientifically Calibrated In-Flight Imagery (SCIFLI) project, based at NASA’s Langley Research Center in Hampton, Virginia.

A Gulfstream G-III takes off Friday, March 27, 2026, from NASA’s Armstrong Flight Research Center in Edwards, California. The G-III will join other NASA aircraft to capture imagery of the Orion spacecraft’s heat shield during Artemis II reentry. The mission is part of NASA’s Scientifically Calibrated In-Flight Imagery (SCIFLI) project, based at NASA’s Langley Research Center in Hampton, Virginia.

NASA pilot Tracy Phelps inspects the Gulfstream G-III aircraft on Friday, March 27, 2026, at NASA’s Armstrong Flight Research Center in Edwards, California. The G-III will join other NASA aircraft to capture imagery of the Orion spacecraft’s heat shield during Artemis II reentry. The mission is part of NASA’s Scientifically Calibrated In-Flight Imagery (SCIFLI) project, based at NASA’s Langley Research Center in Hampton, Virginia.

A Gulfstream G-III takes off Friday, March 27, 2026, from NASA’s Armstrong Flight Research Center in Edwards, California. The G-III will join other NASA aircraft to capture imagery of the Orion spacecraft’s heat shield during Artemis II reentry. The mission is part of NASA’s Scientifically Calibrated In-Flight Imagery (SCIFLI) project, based at NASA’s Langley Research Center in Hampton, Virginia.

Manny Rodriguez, Gulfstream G-III crew chief, completes flight control checks with the pilots on Friday, March 27, 2026, at NASA’s Armstrong Flight Research Center in Edwards, California. The G-III will join other NASA aircraft to capture imagery of the Orion spacecraft’s heat shield during Artemis II reentry. The mission is part of NASA’s Scientifically Calibrated In-Flight Imagery (SCIFLI) project, based at NASA’s Langley Research Center in Hampton, Virginia.

Scott Erickson, left, a quality assurance inspector, and Manny Rodriguez, Gulfstream G-III aircraft crew chief, remove window coverings from the aircraft on Friday, March 27, 2026, at NASA’s Armstrong Flight Research Center in Edwards, California. The G-III will join other NASA aircraft to capture imagery of the Orion spacecraft’s heat shield during Artemis II reentry. The mission is part of NASA’s Scientifically Calibrated In-Flight Imagery (SCIFLI) project, based at NASA’s Langley Research Center in Hampton, Virginia.

A Gulfstream G-III takes off Friday, March 27, 2026, from NASA’s Armstrong Flight Research Center in Edwards, California. The G-III will join other NASA aircraft to capture imagery of the Orion spacecraft’s heat shield during Artemis II reentry. The mission is part of NASA’s Scientifically Calibrated In-Flight Imagery (SCIFLI) project, based at NASA’s Langley Research Center in Hampton, Virginia.