
NASA’s massive Space Launch System (SLS) rocket for the agency’s Artemis I mission is shown fully stacked – with NASA’s Orion spacecraft atop – inside Kennedy Space Center’s Vehicle Assembly Building on Dec. 13, 2021. Artemis I is the inaugural launch of SLS and Orion as an integrated system. With Artemis missions, NASA will explore more of the lunar surface than ever before, using what we learn on and around the Moon to prepare for missions to Mars.

NASA’s massive Space Launch System (SLS) rocket for the agency’s Artemis I mission is shown fully stacked – with NASA’s Orion spacecraft atop – inside Kennedy Space Center’s Vehicle Assembly Building on Dec. 13, 2021. Artemis I is the inaugural launch of SLS and Orion as an integrated system. With Artemis missions, NASA will explore more of the lunar surface than ever before, using what we learn on and around the Moon to prepare for missions to Mars.

NASA’s massive Space Launch System (SLS) rocket for the agency’s Artemis I mission is shown fully stacked – with NASA’s Orion spacecraft atop – inside Kennedy Space Center’s Vehicle Assembly Building on Dec. 13, 2021. Artemis I is the inaugural launch of SLS and Orion as an integrated system. With Artemis missions, NASA will explore more of the lunar surface than ever before, using what we learn on and around the Moon to prepare for missions to Mars.

NASA’s massive Space Launch System (SLS) rocket for the agency’s Artemis I mission is shown fully stacked – with NASA’s Orion spacecraft atop – inside Kennedy Space Center’s Vehicle Assembly Building on Dec. 13, 2021. Artemis I is the inaugural launch of SLS and Orion as an integrated system. With Artemis missions, NASA will explore more of the lunar surface than ever before, using what we learn on and around the Moon to prepare for missions to Mars.

Crane operators and ground support personnel practice lifting and stacking mock-ups of solid rocket booster (SRB) segments in High Bay 4 inside the Vehicle Assembly Building at NASA’s Kennedy Space Center in Florida. The training will help workers prepare for SRB stacking operations for the agency's Space Launch System SLS) rocket. The SLS will launch the Orion spacecraft on its first integrated flight, Exploration Mission-1.

Crane operators and ground support personnel practice lifting and stacking mock-ups of solid rocket booster (SRB) segments in High Bay 4 inside the Vehicle Assembly Building at NASA’s Kennedy Space Center in Florida. The training will help workers prepare for SRB stacking operations for the agency's Space Launch System SLS) rocket. The SLS will launch the Orion spacecraft on its first integrated flight, Exploration Mission-1.

Crane operators and ground support personnel practice lifting and stacking mock-ups of solid rocket booster (SRB) segments in High Bay 4 inside the Vehicle Assembly Building at NASA’s Kennedy Space Center in Florida. The training will help workers prepare for SRB stacking operations for the agency's Space Launch System SLS) rocket. The SLS will launch the Orion spacecraft on its first integrated flight, Exploration Mission-1.

Crane operators and ground support personnel practice lifting and stacking mock-ups of solid rocket booster (SRB) segments in High Bay 4 inside the Vehicle Assembly Building at NASA’s Kennedy Space Center in Florida. The training will help workers prepare for SRB stacking operations for the agency's Space Launch System SLS) rocket. The SLS will launch the Orion spacecraft on its first integrated flight, Exploration Mission-1.

Crane operators and ground support personnel practice lifting and stacking mock-ups of solid rocket booster (SRB) segments in High Bay 4 inside the Vehicle Assembly Building at NASA’s Kennedy Space Center in Florida. The training will help workers prepare for SRB stacking operations for the agency's Space Launch System SLS) rocket. The SLS will launch the Orion spacecraft on its first integrated flight, Exploration Mission-1.

Teams with NASA’s Exploration Ground Systems and contractor Jacobs integrated the interim cryogenic propulsion stage (ICPS) for NASA’s Space Launch System (SLS) rocket with the launch vehicle stage adapter (LVSA) atop the massive SLS core stage on the mobile launcher inside the agency’s Vehicle Assembly Building (VAB) at NASA’s Kennedy Space Center in Florida on July 5, 2021. The ICPS’s RL 10 engine is housed inside the launch vehicle stage adapter, which will protect the engine during launch. The ICPS is a liquid oxygen and liquid hydrogen-based system that will give the Orion spacecraft the big in-space push needed to fly tens of thousands of miles beyond the Moon. The next component to be stacked on top of ICPS will be the Orion stage adapter, which will connect the ICPS with the spacecraft. Through Artemis, NASA will send the first woman and the first person of color to the lunar surface, as well as establish a sustainable presence on and around the Moon. As the first in an increasingly complex set of missions, Artemis I will test SLS and Orion as an integrated system prior to crewed flights to the Moon.

Teams with NASA’s Exploration Ground Systems and contractor Jacobs integrated the interim cryogenic propulsion stage (ICPS) for NASA’s Space Launch System (SLS) rocket with the launch vehicle stage adapter (LVSA) atop the massive SLS core stage on the mobile launcher inside the agency’s Vehicle Assembly Building (VAB) at NASA’s Kennedy Space Center in Florida on July 5, 2021. The ICPS’s RL 10 engine is housed inside the launch vehicle stage adapter, which will protect the engine during launch. The ICPS is a liquid oxygen and liquid hydrogen-based system that will give the Orion spacecraft the big in-space push needed to fly tens of thousands of miles beyond the Moon. The next component to be stacked on top of ICPS will be the Orion stage adapter, which will connect the ICPS with the spacecraft. Through Artemis, NASA will send the first woman and the first person of color to the lunar surface, as well as establish a sustainable presence on and around the Moon. As the first in an increasingly complex set of missions, Artemis I will test SLS and Orion as an integrated system prior to crewed flights to the Moon.

KENNEDY SPACE CENTER, FLA. - Moving past the 525-foot-high Vehicle Assembly Building, the red NASA engine pulls several containers enclosing segments of a solid rocket booster being returned to Utah for testing. The segments were part of the STS-114 stack. It is the first time actual flight segments that had been stacked for flight in the VAB are being returned for testing. They will undergo firing, which will enable inspectors to check the viability of the solid and verify the life expectancy for stacked segments.

KENNEDY SPACE CENTER, FLA. - An engine pulls the container enclosing a segment of a solid rocket booster from the Rotation Processing and Surge Facility. The container will join others on the main track for a trip to Utah where the segments will undergo firing. The segments were part of the STS-114 stack. It is the first time actual flight segments that had been stacked for flight in the VAB are being returned for testing. They will undergo firing, which will enable inspectors to check the viability of the solid and verify the life expectancy for stacked segments.

KENNEDY SPACE CENTER, FLA. - Workers ride the rails along with a container enclosing a segment of a solid rocket booster being moved to the main track. Several segments are being returned to Utah for testing. The segments were part of the STS-114 stack. It is the first time actual flight segments that had been stacked for flight in the VAB are being returned for testing. They will undergo firing, which will enable inspectors to check the viability of the solid and verify the life expectancy for stacked segments.

KENNEDY SPACE CENTER, FLA. - The red NASA engine backs up with its cargo of containers in order to change tracks. The containers enclose segments of a solid rocket booster being returned to Utah for testing. The segments were part of the STS-114 stack. It is the first time actual flight segments that had been stacked for flight in the VAB are being returned for testing. They will undergo firing, which will enable inspectors to check the viability of the solid and verify the life expectancy for stacked segments.

KENNEDY SPACE CENTER, FLA. - The red NASA engine moves forward past the Vehicle Assembly Building with its cargo of containers enclosing segments of a solid rocket booster being returned to Utah for testing. The segments were part of the STS-114 stack. It is the first time actual flight segments that had been stacked for flight in the VAB are being returned for testing. They will undergo firing, which will enable inspectors to check the viability of the solid and verify the life expectancy for stacked segments.

KENNEDY SPACE CENTER, FLA. - The red NASA engine hauls its cargo toward Titusville, Fla. The containers enclose segments of a solid rocket booster being returned to Utah for testing. The segments were part of the STS-114 stack. It is the first time actual flight segments that had been stacked for flight in the VAB are being returned for testing. They will undergo firing, which will enable inspectors to check the viability of the solid and verify the life expectancy for stacked segments.

KENNEDY SPACE CENTER, FLA. - The red NASA engine hauls its cargo toward Titusville, Fla. The containers enclose segments of a solid rocket booster being returned to Utah for testing. The segments were part of the STS-114 stack. It is the first time actual flight segments that had been stacked for flight in the VAB are being returned for testing. They will undergo firing, which will enable inspectors to check the viability of the solid and verify the life expectancy for stacked segments.

Engineers and technicians with the Exploration Ground Systems Program prepare to transfer one of the aft assemblies of the SLS (Space Launch System) solid rocket boosters for the Artemis II mission with an overhead crane inside the Rotation, Processing and Surge Facility at NASA’s Kennedy Space Center in Florida on Wednesday, Nov. 13, 2024. The booster segments are being transferred to the NASA Kennedy’s Vehicle Assembly Building via a transporter for stacking operations in preparation for launch of the Artemis II mission.

Engineers and technicians with the Exploration Ground Systems Program prepare to transfer one of the aft assemblies of the SLS (Space Launch System) solid rocket boosters for the Artemis II mission with an overhead crane inside the Rotation, Processing and Surge Facility at NASA’s Kennedy Space Center in Florida on Wednesday, Nov. 13, 2024. The booster segments are being transferred to the NASA Kennedy’s Vehicle Assembly Building via a transporter for stacking operations in preparation for launch of the Artemis II mission.

Engineers and technicians with the Exploration Ground Systems Program prepare to transfer one of the aft assemblies of the SLS (Space Launch System) solid rocket boosters for the Artemis II mission with an overhead crane inside the Rotation, Processing and Surge Facility at NASA’s Kennedy Space Center in Florida on Wednesday, Nov. 13, 2024. The booster segments are being transferred to the NASA Kennedy’s Vehicle Assembly Building via a transporter for stacking operations in preparation for launch of the Artemis II mission.

Engineers and technicians with the Exploration Ground Systems Program prepare to transfer one of the aft assemblies of the SLS (Space Launch System) solid rocket boosters for the Artemis II mission with an overhead crane inside the Rotation, Processing and Surge Facility at NASA’s Kennedy Space Center in Florida on Wednesday, Nov. 13, 2024. The booster segments are being transferred to the NASA Kennedy’s Vehicle Assembly Building via a transporter for stacking operations in preparation for launch of the Artemis II mission.

Engineers and technicians with the Exploration Ground Systems Program prepare to transfer one of the aft assemblies of the SLS (Space Launch System) solid rocket boosters for the Artemis II mission with an overhead crane inside the Rotation, Processing and Surge Facility at NASA’s Kennedy Space Center in Florida on Wednesday, Nov. 13, 2024. The booster segments are being transferred to the NASA Kennedy’s Vehicle Assembly Building via a transporter for stacking operations in preparation for launch of the Artemis II mission.

Engineers and technicians with the Exploration Ground Systems Program prepare to transfer one of the aft assemblies of the SLS (Space Launch System) solid rocket boosters for the Artemis II mission with an overhead crane inside the Rotation, Processing and Surge Facility at NASA’s Kennedy Space Center in Florida on Wednesday, Nov. 13, 2024. The booster segments are being transferred to the NASA Kennedy’s Vehicle Assembly Building via a transporter for stacking operations in preparation for launch of the Artemis II mission.

Engineers and technicians with the Exploration Ground Systems Program prepare to transfer one of the aft assemblies of the SLS (Space Launch System) solid rocket boosters for the Artemis II mission with an overhead crane inside the Rotation, Processing and Surge Facility at NASA’s Kennedy Space Center in Florida on Wednesday, Nov. 13, 2024. The booster segments are being transferred to the NASA Kennedy’s Vehicle Assembly Building via a transporter for stacking operations in preparation for launch of the Artemis II mission.

Engineers and technicians with the Exploration Ground Systems Program prepare to transfer one of the aft assemblies of the SLS (Space Launch System) solid rocket boosters for the Artemis II mission with an overhead crane inside the Rotation, Processing and Surge Facility at NASA’s Kennedy Space Center in Florida on Wednesday, Nov. 13, 2024. The booster segments are being transferred to the NASA Kennedy’s Vehicle Assembly Building via a transporter for stacking operations in preparation for launch of the Artemis II mission.

Engineers and technicians with the Exploration Ground Systems Program prepare to transfer one of the aft assemblies of the SLS (Space Launch System) solid rocket boosters for the Artemis II mission with an overhead crane inside the Rotation, Processing and Surge Facility at NASA’s Kennedy Space Center in Florida on Wednesday, Nov. 13, 2024. The booster segments are being transferred to the NASA Kennedy’s Vehicle Assembly Building via a transporter for stacking operations in preparation for launch of the Artemis II mission.

Engineers and technicians with the Exploration Ground Systems Program prepare to transfer one of the aft assemblies of the SLS (Space Launch System) solid rocket boosters for the Artemis II mission with an overhead crane inside the Rotation, Processing and Surge Facility at NASA’s Kennedy Space Center in Florida on Wednesday, Nov. 13, 2024. The booster segments are being transferred to the NASA Kennedy’s Vehicle Assembly Building via a transporter for stacking operations in preparation for launch of the Artemis II mission.

Engineers and technicians with the Exploration Ground Systems Program prepare to transfer one of the aft assemblies of the SLS (Space Launch System) solid rocket boosters for the Artemis II mission with an overhead crane inside the Rotation, Processing and Surge Facility at NASA’s Kennedy Space Center in Florida on Wednesday, Nov. 13, 2024. The booster segments are being transferred to the NASA Kennedy’s Vehicle Assembly Building via a transporter for stacking operations in preparation for launch of the Artemis II mission.

Engineers and technicians with the Exploration Ground Systems Program prepare to transfer one of the aft assemblies of the SLS (Space Launch System) solid rocket boosters for the Artemis II mission with an overhead crane inside the Rotation, Processing and Surge Facility at NASA’s Kennedy Space Center in Florida on Wednesday, Nov. 13, 2024. The booster segments are being transferred to the NASA Kennedy’s Vehicle Assembly Building via a transporter for stacking operations in preparation for launch of the Artemis II mission.

Engineers and technicians with the Exploration Ground Systems Program prepare to transfer one of the aft assemblies of the SLS (Space Launch System) solid rocket boosters for the Artemis II mission with an overhead crane inside the Rotation, Processing and Surge Facility at NASA’s Kennedy Space Center in Florida on Wednesday, Nov. 13, 2024. The booster segments are being transferred to the NASA Kennedy’s Vehicle Assembly Building via a transporter for stacking operations in preparation for launch of the Artemis II mission.

Engineers and technicians with the Exploration Ground Systems Program prepare to move the aft assemblies of the SLS (Space Launch System) solid rocket boosters for the Artemis II mission with an overhead crane inside the Rotation, Processing and Surge Facility at NASA’s Kennedy Space Center in Florida on Wednesday, Nov. 13, 2024. The booster segments are being transferred to the NASA Kennedy’s Vehicle Assembly Building via a transporter for stacking operations in preparation for launch of the Artemis II mission.

Engineers with NASA’s Exploration Ground Systems complete stacking operations on the twin SLS (Space Launch System) solid rocket boosters for Artemis II by integrating the nose cones atop the forward assemblies inside the Vehicle Assembly Building’s High Bay 3 at NASA’s Kennedy Space Center in Florida on Wednesday, Feb. 19, 2025. During three months of stacking operations, technicians used a massive overhead crane to lift 10 booster segments – five segments per booster – and aerodynamic nose cones into place on mobile launcher 1. The twin solid boosters will help support the remaining rocket components and the Orion spacecraft during final assembly of the Artemis II Moon rocket and provide more than 75 percent of the total SLS thrust during liftoff from NASA Kennedy’s Launch Pad 39B.

Engineers with NASA’s Exploration Ground Systems complete stacking operations on the twin SLS (Space Launch System) solid rocket boosters for Artemis II by integrating the nose cones atop the forward assemblies inside the Vehicle Assembly Building’s High Bay 3 at NASA’s Kennedy Space Center in Florida on Wednesday, Feb. 19, 2025. During three months of stacking operations, technicians used a massive overhead crane to lift 10 booster segments – five segments per booster – and aerodynamic nose cones into place on mobile launcher 1. The twin solid boosters will help support the remaining rocket components and the Orion spacecraft during final assembly of the Artemis II Moon rocket and provide more than 75 percent of the total SLS thrust during liftoff from NASA Kennedy’s Launch Pad 39B.

Engineers with NASA’s Exploration Ground Systems complete stacking operations on the twin SLS (Space Launch System) solid rocket boosters for Artemis II by integrating the nose cones atop the forward assemblies inside the Vehicle Assembly Building’s High Bay 3 at NASA’s Kennedy Space Center in Florida on Wednesday, Feb. 19, 2025. During three months of stacking operations, technicians used a massive overhead crane to lift 10 booster segments – five segments per booster – and aerodynamic nose cones into place on mobile launcher 1. The twin solid boosters will help support the remaining rocket components and the Orion spacecraft during final assembly of the Artemis II Moon rocket and provide more than 75 percent of the total SLS thrust during liftoff from NASA Kennedy’s Launch Pad 39B.

Engineers with NASA’s Exploration Ground Systems complete stacking operations on the twin SLS (Space Launch System) solid rocket boosters for Artemis II by integrating the nose cones atop the forward assemblies inside the Vehicle Assembly Building’s High Bay 3 at NASA’s Kennedy Space Center in Florida on Wednesday, Feb. 19, 2025. During three months of stacking operations, technicians used a massive overhead crane to lift 10 booster segments – five segments per booster – and aerodynamic nose cones into place on mobile launcher 1. The twin solid boosters will help support the remaining rocket components and the Orion spacecraft during final assembly of the Artemis II Moon rocket and provide more than 75 percent of the total SLS thrust during liftoff from NASA Kennedy’s Launch Pad 39B.

At Space Launch Complex 41, the Juno spacecraft, enclosed in an Atlas payload fairing, was transferred into the Vertical Integration Facility where it was positioned on top of the Atlas rocket stacked inside.

CAPE CANAVERAL, Fla. – In the Vehicle Assembly Building's High Bay 4, assembly of the Ares I-X rocket nears completion. The yellow framework, nicknamed the "birdcage," is lowered by crane toward Super Stack 5. The birdcage has the ability to lift and to stack and de-stack the Ares I-X rocket's Super Stack 5. Next, the stack will be lifted on top of the segments already in place on the mobile launcher platform, completing assembly of the rocket. Five super stacks make up the rocket's upper stage that will be integrated with the four-segment solid rocket booster first stage. Ares I-X is the test vehicle for the Ares I, which is part of the Constellation Program to return men to the moon and beyond. The Ares I-X flight test is targeted for Oct. 31, pending formal NASA Headquarters approval. Photo credit: NASA/Jack Pfaller

CAPE CANAVERAL, Fla. – In the Vehicle Assembly Building's High Bay 4, assembly of the Ares I-X rocket nears completion. The yellow framework, nicknamed the "birdcage," is lowered by crane over Super Stack 5. The birdcage has the ability to lift and to stack and de-stack the Ares I-X rocket's Super Stack 5. Next, the stack will be lifted on top of the segments already in place on the mobile launcher platform, completing assembly of the rocket. Five super stacks make up the rocket's upper stage that will be integrated with the four-segment solid rocket booster first stage. Ares I-X is the test vehicle for the Ares I, which is part of the Constellation Program to return men to the moon and beyond. The Ares I-X flight test is targeted for Oct. 31, pending formal NASA Headquarters approval. Photo credit: NASA/Jack Pfaller

CAPE CANAVERAL, Fla. – In the Vehicle Assembly Building's High Bay 4, assembly of the Ares I-X rocket nears completion. Technicians monitor the yellow framework, nicknamed the "birdcage," as it is lowered by crane toward Super Stack 5. The birdcage has the ability to lift and to stack and de-stack the Ares I-X rocket's Super Stack 5. Next, the stack will be lifted on top of the segments already in place on the mobile launcher platform, completing assembly of the rocket. Five super stacks make up the rocket's upper stage that will be integrated with the four-segment solid rocket booster first stage. Ares I-X is the test vehicle for the Ares I, which is part of the Constellation Program to return men to the moon and beyond. The Ares I-X flight test is targeted for Oct. 31, pending formal NASA Headquarters approval. Photo credit: NASA/Jack Pfaller

CAPE CANAVERAL, Fla. – In the Vehicle Assembly Building's High Bay 4, assembly of the Ares I-X rocket nears completion. The yellow framework, nicknamed the "birdcage," is lowered by crane over the Launch Abort System, or LAS, of Super Stack 5. The birdcage has the ability to lift and to stack and de-stack the Ares I-X rocket's Super Stack 5. Next, the stack will be lifted on top of the segments already in place on the mobile launcher platform, completing assembly of the rocket. Five super stacks make up the rocket's upper stage that will be integrated with the four-segment solid rocket booster first stage. Ares I-X is the test vehicle for the Ares I, which is part of the Constellation Program to return men to the moon and beyond. The Ares I-X flight test is targeted for Oct. 31, pending formal NASA Headquarters approval. Photo credit: NASA/Jack Pfaller

The first X-43A hypersonic research aircraft and its modified Pegasus booster rocket were carried aloft by NASA's NB-52B carrier aircraft from Dryden Flight Research Center at Edwards Air Force Base, Calif., on June 2, 2001 for the first of three high-speed free flight attempts. About an hour and 15 minutes later the Pegasus booster was released from the B-52 to accelerate the X-43A to its intended speed of Mach 7. Before this could be achieved, the combined Pegasus and X-43A "stack" lost control about eight seconds after ignition of the Pegasus rocket motor. The mission was terminated and explosive charges ensured the Pegasus and X-43A fell into the Pacific Ocean in a cleared Navy range area. A NASA investigation board is being assembled to determine the cause of the incident. Work continues on two other X-43A vehicles, the first of which could fly by late 2001. Central to the X-43A program is its integration of an air-breathing "scramjet" engine that could enable a variety of high-speed aerospace craft, and promote cost-effective access to space. The 12-foot, unpiloted research vehicle was developed and built for NASA by MicroCraft Inc., Tullahoma, Tenn. The booster was built by Orbital Sciences Corp. at Chandler, Ariz.

CAPE CANAVERAL, Fla. – The 327-foot tall Ares I-X rocket stretches into the upper regions of NASA Kennedy Space Center's Vehicle Assembly Building. The rocket is stacked on the mobile launcher platform in High Bay 3. Mission, program and NASA decals are lined up on the stack below the U.S. flag. Five super stacks make up the upper stage that are integrated with the four-segment solid rocket booster first stage below. Ares I-X is the test vehicle for the Ares I, which is part of the Constellation Program to return men to the moon and beyond. The Ares I-X flight test is targeted for Oct. 31. Photo credit: NASA/Jack Pfaller

CAPE CANAVERAL, Fla. – The 327-foot tall Ares I-X rocket stretches into the upper regions of NASA Kennedy Space Center's Vehicle Assembly Building. The rocket is stacked on the mobile launcher platform in High Bay 3. Mission, program and NASA decals are lined up on the stack below the U.S. flag. Five super stacks make up the upper stage that are integrated with the four-segment solid rocket booster first stage below. Ares I-X is the test vehicle for the Ares I, which is part of the Constellation Program to return men to the moon and beyond. The Ares I-X flight test is targeted for Oct. 31. Photo credit: NASA/Jack Pfaller

The forward skirt section of NASA's SLS rocket is completed and awaiting stacking for the EM-1 launch.

The forward skirt section of NASA's SLS rocket is completed and awaiting stacking for the EM-1 launch.

The forward skirt section of NASA's SLS rocket is completed and awaiting stacking for the EM-1 launch.

The forward skirt section of NASA's SLS rocket is completed and awaiting stacking for the EM-1 launch.

The forward skirt section of NASA's SLS rocket is completed and awaiting stacking for the EM-1 launch.

Engineers and technicians with NASA’s Exploration Ground Systems Program move the right aft assembly, or bottom portion of the right solid rocket booster for the agency’s SLS (Space Launch System) rocket, into inside the Vehicle Assembly Building at NASA’s Kennedy Space Center on Thursday, Nov. 22, 2024. The crane will lift the right aft assembly on top of mobile launcher 1, joining the previously stacked left aft assembly as the first booster segments stacked for the Artemis II Moon rocket.

Engineers and technicians with NASA’s Exploration Ground Systems Program move the right aft assembly, or bottom portion of the right solid rocket booster for the agency’s SLS (Space Launch System) rocket, into the Vehicle Assembly Building with the core stage at NASA’s Kennedy Space Center in Florida on Thursday, Nov. 22, 2024. The right aft assembly will be lifted atop mobile launcher 1, joining the previously stacked left aft assembly as the first booster segments stacked for the Artemis II Moon rocket.

Engineers and technicians with NASA’s Exploration Ground Systems Program move the right aft assembly, or bottom portion of the right solid rocket booster for the agency’s SLS (Space Launch System) rocket, into inside the Vehicle Assembly Building at NASA’s Kennedy Space Center on Thursday, Nov. 22, 2024. The crane will lift the right aft assembly on top of mobile launcher 1, joining the previously stacked left aft assembly as the first booster segments stacked for the Artemis II Moon rocket.

Engineers and technicians with NASA’s Exploration Ground Systems Program move the right aft assembly, or bottom portion of the right solid rocket booster for the agency’s SLS (Space Launch System) rocket, into the transfer aisle of the Vehicle Assembly Building at NASA’s Kennedy Space Center in Florida on Thursday, Nov. 22, 2024. The right aft assembly will be lifted atop mobile launcher 1, joining the previously stacked left aft assembly as the first booster segments stacked for the Artemis II Moon rocket.

Engineers and technicians with NASA’s Exploration Ground Systems Program move the right aft assembly, or bottom portion of the right solid rocket booster for the agency’s SLS (Space Launch System) rocket, into inside the Vehicle Assembly Building at NASA’s Kennedy Space Center on Thursday, Nov. 22, 2024. The crane will lift the right aft assembly on top of mobile launcher 1, joining the previously stacked left aft assembly as the first booster segments stacked for the Artemis II Moon rocket.

Teams with NASA’s Exploration Ground Systems and primary contractor Amentum, use a massive crane to lift to vertical the SLS (Space Launch System) Moon rocket for Artemis II on Saturday, March 22, 2025, inside the Vehicle Assembly Building at NASA’s Kennedy Space Center in Florida. The move from the facility’s transfer aisle into High Bay 3 allows technicians to integrate the 212-foot-tall core stage with the stacked solid rocket boosters onto mobile launcher 1. Artemis II is the first crewed test flight under NASA’s Artemis campaign and is another step toward missions on the lunar surface and helping the agency prepare for future human missions to Mars.

Teams with NASA’s Exploration Ground Systems and primary contractor Amentum, use a massive crane to lift to vertical the SLS (Space Launch System) Moon rocket for Artemis II on Saturday, March 22, 2025, inside the Vehicle Assembly Building at NASA’s Kennedy Space Center in Florida. The move from the facility’s transfer aisle into High Bay 3 allows technicians to integrate the 212-foot-tall core stage with the stacked solid rocket boosters onto mobile launcher 1. Artemis II is the first crewed test flight under NASA’s Artemis campaign and is another step toward missions on the lunar surface and helping the agency prepare for future human missions to Mars.

CAPE CANAVERAL, Fla. – In the Vehicle Assembly Building's High Bay 3, the Ares I-X rocket is being assembled on the mobile launcher platform. Super Stack 4 has just been mated to Super Stack 3 on top. Five super stacks make up the upper stage that will be integrated with the four-segment solid rocket booster first stage on the mobile launch platform. Ares I-X is the test vehicle for the Ares I, which is part of the Constellation Program to return men to the moon and beyond. The Ares I-X flight test is targeted for Oct. 31, pending formal NASA Headquarters approval. Photo credit: NASA/Jack Pfaller

CAPE CANAVERAL, Fla. – In the Vehicle Assembly Building's High Bay 3, the Ares I-X rocket is being assembled on the mobile launcher platform. Super Stack 4 has just been mated to Super Stack 3 on top. Five super stacks make up the upper stage that will be integrated with the four-segment solid rocket booster first stage on the mobile launch platform. Ares I-X is the test vehicle for the Ares I, which is part of the Constellation Program to return men to the moon and beyond. The Ares I-X flight test is targeted for Oct. 31, pending formal NASA Headquarters approval. Photo credit: NASA/Jack Pfaller

CAPE CANAVERAL, Fla. – In the Vehicle Assembly Building's High Bay 4 at NASA's Kennedy Space Center in Florida, a crane lifts Super Stack 2, part of the Ares I-X upper stage. The stack is being moved across the transfer aisle for attachment to Super Stack 1 in High Bay 3. Beneath is seen Super Stack 3 and at left is the crew module-launch abort system, or CM-LAS, and simulator service module-service adapter stack. The upper stage comprises five super stacks, which are integrated with the four-segment solid rocket booster first stage on the mobile launch platform. Ares I-X is the test vehicle for the Ares I, which is part of the Constellation Program to return men to the moon and beyond. The Ares I-X flight test is targeted for Oct. 31, pending formal NASA Headquarters approval. Photo credit: NASA/Tim Jacobs

CAPE CANAVERAL, Fla. – In the Vehicle Assembly Building's High Bay 4 at NASA's Kennedy Space Center in Florida, a crane lifts Super Stack 2, part of the Ares I-X upper stage. The stack is being moved across the transfer aisle for attachment to Super Stack 1 in High Bay 3. Beneath is seen Super Stack 3 and at left is the crew module-launch abort system, or CM-LAS, and simulator service module-service adapter stack. The upper stage comprises five super stacks, which are integrated with the four-segment solid rocket booster first stage on the mobile launch platform. Ares I-X is the test vehicle for the Ares I, which is part of the Constellation Program to return men to the moon and beyond. The Ares I-X flight test is targeted for Oct. 31, pending formal NASA Headquarters approval. Photo credit: NASA/Tim Jacobs

CAPE CANAVERAL, Fla. – In the Vehicle Assembly Building's High Bay 4 at NASA's Kennedy Space Center in Florida, a crane lifts Super Stack 2, part of the Ares I-X upper stage. The stack is being moved across the transfer aisle for attachment to Super Stack 1 in High Bay 3. Beneath can be seen Super Stack 3 and at left is the crew module-launch abort system, or CM-LAS, and simulator service module-service adapter stack. The upper stage comprises five super stacks, which are integrated with the four-segment solid rocket booster first stage on the mobile launch platform. Ares I-X is the test vehicle for the Ares I, which is part of the Constellation Program to return men to the moon and beyond. The Ares I-X flight test is targeted for Oct. 31, pending formal NASA Headquarters approval. Photo credit: NASA/Tim Jacobs

CAPE CANAVERAL, Fla. – In NASA Kennedy Space Center's Vehicle Assembly Building, a crane is attached to the Ares I-X Super Stack 3 in High Bay 3. The stack is being moved to High Bay 4 for integration with Super Stack 2. The upper stage comprises five super stacks, which are integrated with the four-segment solid rocket booster first stage on the mobile launch platform. Ares I-X is the test vehicle for the Ares I, which is part of the Constellation Program to return men to the moon and beyond. The Ares I-X flight test is targeted for Oct. 31, pending formal NASA Headquarters approval. Photo credit: NASA/Jack Pfaller

CAPE CANAVERAL, Fla. – In the Vehicle Assembly Building's High Bay 4 at NASA's Kennedy Space Center in Florida, a crane lifts the Ares I-X Super Stack 4. The stack will be moved to High Bay 3 for integration with Super Stack 3. Five super stacks make up the upper stage that will be integrated with the four-segment solid rocket booster first stage on the mobile launch platform. Ares I-X is the test vehicle for the Ares I, which is part of the Constellation Program to return men to the moon and beyond. The Ares I-X flight test is targeted for Oct. 31, pending formal NASA Headquarters approval. Photo credit: NASA/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. – In the Vehicle Assembly Building's High Bay 4 at NASA's Kennedy Space Center in Florida, a crane is attached to the Ares I-X Super Stack 4. The stack will be lifted and moved to High Bay 3 for integration with Super Stack 3. Five super stacks make up the upper stage that will be integrated with the four-segment solid rocket booster first stage on the mobile launch platform. Ares I-X is the test vehicle for the Ares I, which is part of the Constellation Program to return men to the moon and beyond. The Ares I-X flight test is targeted for Oct. 31, pending formal NASA Headquarters approval. Photo credit: NASA/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. – In the Vehicle Assembly Building's High Bay 4 at NASA's Kennedy Space Center in Florida, a crane lifts the Ares I-X Super Stack 4. The stack will be moved to High Bay 3 for integration with Super Stack 3. Five super stacks make up the upper stage that will be integrated with the four-segment solid rocket booster first stage on the mobile launch platform. Ares I-X is the test vehicle for the Ares I, which is part of the Constellation Program to return men to the moon and beyond. The Ares I-X flight test is targeted for Oct. 31, pending formal NASA Headquarters approval. Photo credit: NASA/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. – In NASA Kennedy Space Center's Vehicle Assembly Building, a crane is attached to the Ares I-X Super Stack 3 in High Bay 3. The stack is being moved to High Bay 4 for integration with Super Stack 2. The upper stage comprises five super stacks, which are integrated with the four-segment solid rocket booster first stage on the mobile launch platform. Ares I-X is the test vehicle for the Ares I, which is part of the Constellation Program to return men to the moon and beyond. The Ares I-X flight test is targeted for Oct. 31, pending formal NASA Headquarters approval. Photo credit: NASA/Jack Pfaller

This photograph shows Solid Rocket Booster segments undergoing stacking operations in Marshall Space Flight Center's Building 4707. The Solid Rocket Boosters were designed in-house at the Marshall Center with the Thiokol Corporation as the prime contractor.

CAPE CANAVERAL, Fla. – In the Vehicle Assembly Building's transfer aisle, assembly of the Ares I-X rocket nears completion. The yellow framework, nicknamed the "birdcage," moves Super Stack 5 from High Bay 4 over the transfer aisle toward an opening at the 16th floor crossover in High Bay 3. The stack will be positioned on top of the segments already in place on the mobile launcher platform in High Bay 3, in the background, completing assembly of the 327-foot-tall rocket. Five super stacks make up the rocket's upper stage that is integrated with the four-segment solid rocket booster first stage. Ares I-X is the test vehicle for the Ares I, which is part of the Constellation Program to return men to the moon and beyond. The Ares I-X flight test is targeted for Oct. 31, pending formal NASA Headquarters approval. Photo credit: NASA/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. – In the Vehicle Assembly Building's transfer aisle, assembly of the Ares I-X rocket nears completion. The yellow framework, nicknamed the "birdcage," moves Super Stack 5 from High Bay 4 over the transfer aisle. The stack will be positioned on top of the segments already in place on the mobile launcher platform in High Bay 3, completing assembly of the 327-foot-tall rocket. Five super stacks make up the rocket's upper stage that is integrated with the four-segment solid rocket booster first stage. Ares I-X is the test vehicle for the Ares I, which is part of the Constellation Program to return men to the moon and beyond. The Ares I-X flight test is targeted for Oct. 31, pending formal NASA Headquarters approval. Photo credit: NASA/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. – In the Vehicle Assembly Building's High Bay 4, assembly of the Ares I-X rocket nears completion. The yellow framework, nicknamed the "birdcage," lifts Super Stack 5. The stack will be positioned on top of the segments already in place on the mobile launcher platform in High Bay 3, completing assembly of the 327-foot-tall rocket. Five super stacks make up the rocket's upper stage that is integrated with the four-segment solid rocket booster first stage. Ares I-X is the test vehicle for the Ares I, which is part of the Constellation Program to return men to the moon and beyond. The Ares I-X flight test is targeted for Oct. 31, pending formal NASA Headquarters approval. Photo credit: NASA/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. – In the Vehicle Assembly Building's High Bay 3, the yellow framework, nicknamed the "birdcage," lowers Super Stack 5 onto Super Stack 4. Once in position, assembly of the Ares I-X rocket will be complete. The 327-foot-tall rocket is one of the largest processed in the bay, rivaling the height of the Apollo Program's 364-foot-tall Saturn V. Five super stacks make up the rocket's upper stage that is integrated with the four-segment solid rocket booster first stage. Ares I-X is the test vehicle for the Ares I, which is part of the Constellation Program to return men to the moon and beyond. The Ares I-X flight test is targeted for Oct. 31, pending formal NASA Headquarters approval. Photo credit: NASA/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. – In the Vehicle Assembly Building's High Bay 4, assembly of the Ares I-X rocket nears completion. The yellow framework, nicknamed the "birdcage," lifts Super Stack 5 toward an opening at the 16th floor crossover into the transfer aisle. The stack will be positioned on top of the segments already in place on the mobile launcher platform in High Bay 3, completing assembly of the 327-foot-tall rocket. Five super stacks make up the rocket's upper stage that is integrated with the four-segment solid rocket booster first stage. Ares I-X is the test vehicle for the Ares I, which is part of the Constellation Program to return men to the moon and beyond. The Ares I-X flight test is targeted for Oct. 31, pending formal NASA Headquarters approval. Photo credit: NASA/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. – In the Vehicle Assembly Building's High Bay 4, assembly of the Ares I-X rocket nears completion. The yellow framework, nicknamed the "birdcage," lifts Super Stack 5. The stack will be positioned on top of the segments already in place on the mobile launcher platform in High Bay 3, completing assembly of the 327-foot-tall rocket. Five super stacks make up the rocket's upper stage that is integrated with the four-segment solid rocket booster first stage. Ares I-X is the test vehicle for the Ares I, which is part of the Constellation Program to return men to the moon and beyond. The Ares I-X flight test is targeted for Oct. 31, pending formal NASA Headquarters approval. Photo credit: NASA/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. – In the Vehicle Assembly Building's High Bay 3, the yellow framework, nicknamed the "birdcage," lifts Super Stack 5 atop Super Stack 4. Once in position, assembly of the Ares I-X rocket will be complete. The 327-foot-tall rocket is one of the largest processed in the bay, rivaling the height of the Apollo Program's 364-foot-tall Saturn V. Five super stacks make up the rocket's upper stage that is integrated with the four-segment solid rocket booster first stage. Ares I-X is the test vehicle for the Ares I, which is part of the Constellation Program to return men to the moon and beyond. The Ares I-X flight test is targeted for Oct. 31, pending formal NASA Headquarters approval. Photo credit: NASA/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. – In the Vehicle Assembly Building's High Bay 3, the yellow framework, nicknamed the "birdcage," lifts Super Stack 5 atop Super Stack 4. Once in position, assembly of the Ares I-X rocket will be complete. The 327-foot-tall rocket is one of the largest processed in the bay, rivaling the height of the Apollo Program's 364-foot-tall Saturn V. Five super stacks make up the rocket's upper stage that is integrated with the four-segment solid rocket booster first stage. Ares I-X is the test vehicle for the Ares I, which is part of the Constellation Program to return men to the moon and beyond. The Ares I-X flight test is targeted for Oct. 31, pending formal NASA Headquarters approval. Photo credit: NASA/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. – In the Vehicle Assembly Building's High Bay 4, assembly of the Ares I-X rocket nears completion. The yellow framework, nicknamed the "birdcage," lifts Super Stack 5. The stack will be positioned on top of the segments already in place on the mobile launcher platform in High Bay 3, completing assembly of the 327-foot-tall rocket. Five super stacks make up the rocket's upper stage that is integrated with the four-segment solid rocket booster first stage. Ares I-X is the test vehicle for the Ares I, which is part of the Constellation Program to return men to the moon and beyond. The Ares I-X flight test is targeted for Oct. 31, pending formal NASA Headquarters approval. Photo credit: NASA/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. – In the Vehicle Assembly Building's High Bay 4, assembly of the Ares I-X rocket nears completion. The yellow framework, nicknamed the "birdcage," lifts Super Stack 5 through an opening at the 16th floor crossover into the transfer aisle. The stack will be positioned on top of the segments already in place on the mobile launcher platform in High Bay 3, completing assembly of the 327-foot-tall rocket. Five super stacks make up the rocket's upper stage that is integrated with the four-segment solid rocket booster first stage. Ares I-X is the test vehicle for the Ares I, which is part of the Constellation Program to return men to the moon and beyond. The Ares I-X flight test is targeted for Oct. 31, pending formal NASA Headquarters approval. Photo credit: NASA/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. – In the Vehicle Assembly Building's transfer aisle, assembly of the Ares I-X rocket nears completion. The yellow framework, nicknamed the "birdcage," moves Super Stack 5 from High Bay 4 over the transfer aisle toward an opening at the 16th floor crossover in High Bay 3. The stack will be positioned on top of the segments already in place on the mobile launcher platform in High Bay 3, in the background, completing assembly of the 327-foot-tall rocket. Five super stacks make up the rocket's upper stage that is integrated with the four-segment solid rocket booster first stage. Ares I-X is the test vehicle for the Ares I, which is part of the Constellation Program to return men to the moon and beyond. The Ares I-X flight test is targeted for Oct. 31, pending formal NASA Headquarters approval. Photo credit: NASA/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. – In the Vehicle Assembly Building's High Bay 4, assembly of the Ares I-X rocket nears completion. The yellow framework, nicknamed the "birdcage," lifts Super Stack 5 toward an opening at the 16th floor crossover into the transfer aisle. The stack will be positioned on top of the segments already in place on the mobile launcher platform in High Bay 3, completing assembly of the 327-foot-tall rocket. Five super stacks make up the rocket's upper stage that is integrated with the four-segment solid rocket booster first stage. Ares I-X is the test vehicle for the Ares I, which is part of the Constellation Program to return men to the moon and beyond. The Ares I-X flight test is targeted for Oct. 31, pending formal NASA Headquarters approval. Photo credit: NASA/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. – In the Vehicle Assembly Building's High Bay 4, assembly of the Ares I-X rocket nears completion. The yellow framework, nicknamed the "birdcage," lifts Super Stack 5 toward an opening at the 16th floor crossover into the transfer aisle. The stack will be positioned on top of the segments already in place on the mobile launcher platform in High Bay 3, completing assembly of the 327-foot-tall rocket. Five super stacks make up the rocket's upper stage that is integrated with the four-segment solid rocket booster first stage. Ares I-X is the test vehicle for the Ares I, which is part of the Constellation Program to return men to the moon and beyond. The Ares I-X flight test is targeted for Oct. 31, pending formal NASA Headquarters approval. Photo credit: NASA/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. – In the Vehicle Assembly Building's High Bay 3, the yellow framework, nicknamed the "birdcage," lowers Super Stack 5 onto Super Stack 4. Once in position, assembly of the Ares I-X rocket will be complete. The 327-foot-tall rocket is one of the largest processed in the bay, rivaling the height of the Apollo Program's 364-foot-tall Saturn V. Five super stacks make up the rocket's upper stage that is integrated with the four-segment solid rocket booster first stage. Ares I-X is the test vehicle for the Ares I, which is part of the Constellation Program to return men to the moon and beyond. The Ares I-X flight test is targeted for Oct. 31, pending formal NASA Headquarters approval. Photo credit: NASA/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. – In the Vehicle Assembly Building's High Bay 4, assembly of the Ares I-X rocket nears completion. The yellow framework, nicknamed the "birdcage," lifts Super Stack 5 toward an opening at the 16th floor crossover into the transfer aisle. The stack will be positioned on top of the segments already in place on the mobile launcher platform in High Bay 3, completing assembly of the 327-foot-tall rocket. Five super stacks make up the rocket's upper stage that is integrated with the four-segment solid rocket booster first stage. Ares I-X is the test vehicle for the Ares I, which is part of the Constellation Program to return men to the moon and beyond. The Ares I-X flight test is targeted for Oct. 31, pending formal NASA Headquarters approval. Photo credit: NASA/Dimitri Gerondidakis

Engineers and technicians with the Exploration Ground Systems Program stack the first Moon rocket segment – the left aft assembly for the Artemis II SLS (Space Launch System) solid rocket booster onto mobile launcher 1 inside the Vehicle Assembly Building at NASA’s Kennedy Space Center on Wednesday, Nov. 20, 2024. The first of 10 booster segments to be stacked, the boosters will help support the remaining rocket components and the Orion spacecraft during final assembly of the Artemis II Moon rocket and provide more than 75 percent of the total SLS thrust during liftoff from NASA Kennedy’s Launch Pad 39B.

Engineers and technicians with the Exploration Ground Systems Program stack the first Moon rocket segment – the left aft assembly for the Artemis II SLS (Space Launch System) solid rocket booster onto mobile launcher 1 inside the Vehicle Assembly Building at NASA’s Kennedy Space Center on Wednesday, Nov. 20, 2024. The first of 10 booster segments to be stacked, the boosters will help support the remaining rocket components and the Orion spacecraft during final assembly of the Artemis II Moon rocket and provide more than 75 percent of the total SLS thrust during liftoff from NASA Kennedy’s Launch Pad 39B.

Engineers and technicians with the Exploration Ground Systems Program stack the first Moon rocket segment – the left aft assembly for the Artemis II SLS (Space Launch System) solid rocket booster onto mobile launcher 1 inside the Vehicle Assembly Building at NASA’s Kennedy Space Center on Wednesday, Nov. 20, 2024. The first of 10 booster segments to be stacked, the boosters will help support the remaining rocket components and the Orion spacecraft during final assembly of the Artemis II Moon rocket and provide more than 75 percent of the total SLS thrust during liftoff from NASA Kennedy’s Launch Pad 39B.

Engineers and technicians with the Exploration Ground Systems Program stack the first Moon rocket segment – the left aft assembly for the Artemis II SLS (Space Launch System) solid rocket booster onto mobile launcher 1 inside the Vehicle Assembly Building at NASA’s Kennedy Space Center on Wednesday, Nov. 20, 2024. The first of 10 booster segments to be stacked, the boosters will help support the remaining rocket components and the Orion spacecraft during final assembly of the Artemis II Moon rocket and provide more than 75 percent of the total SLS thrust during liftoff from NASA Kennedy’s Launch Pad 39B.

Engineers and technicians with NASA’s Exploration Ground Systems Program complete stacking of the first Moon rocket segments – the left and right aft assemblies for the agency’s Artemis II SLS (Space Launch System) solid rocket boosters – onto mobile launcher 1 inside the Vehicle Assembly Building at Kennedy Space Center on Friday, Nov. 22, 2024. The first two of 10 booster segments to be stacked, the boosters will help support the remaining rocket components and the Orion spacecraft during final assembly of the Artemis II Moon rocket and provide more than 75 percent of the total SLS thrust during liftoff from NASA Kennedy’s Launch Pad 39B.

Engineers and technicians with the Exploration Ground Systems Program stack the first Moon rocket segment – the left aft assembly for the Artemis II SLS (Space Launch System) solid rocket booster onto mobile launcher 1 inside the Vehicle Assembly Building at NASA’s Kennedy Space Center on Wednesday, Nov. 20, 2024. The first of 10 booster segments to be stacked, the boosters will help support the remaining rocket components and the Orion spacecraft during final assembly of the Artemis II Moon rocket and provide more than 75 percent of the total SLS thrust during liftoff from NASA Kennedy’s Launch Pad 39B.

Engineers and technicians with NASA’s Exploration Ground Systems Program complete stacking of the first Moon rocket segments – the left and right aft assemblies for the agency’s Artemis II SLS (Space Launch System) solid rocket boosters – onto mobile launcher 1 inside the Vehicle Assembly Building at Kennedy Space Center on Friday, Nov. 22, 2024. The first two of 10 booster segments to be stacked, the boosters will help support the remaining rocket components and the Orion spacecraft during final assembly of the Artemis II Moon rocket and provide more than 75 percent of the total SLS thrust during liftoff from NASA Kennedy’s Launch Pad 39B.

Engineers and technicians with NASA’s Exploration Ground Systems Program complete stacking of the first Moon rocket segments – the left and right aft assemblies for the agency’s Artemis II SLS (Space Launch System) solid rocket boosters – onto mobile launcher 1 inside the Vehicle Assembly Building at Kennedy Space Center on Friday, Nov. 22, 2024. The first two of 10 booster segments to be stacked, the boosters will help support the remaining rocket components and the Orion spacecraft during final assembly of the Artemis II Moon rocket and provide more than 75 percent of the total SLS thrust during liftoff from NASA Kennedy’s Launch Pad 39B.

Engineers and technicians with NASA’s Exploration Ground Systems Program complete stacking of the first Moon rocket segments – the left and right aft assemblies for the agency’s Artemis II SLS (Space Launch System) solid rocket boosters – onto mobile launcher 1 inside the Vehicle Assembly Building at Kennedy Space Center on Friday, Nov. 22, 2024. The first two of 10 booster segments to be stacked, the boosters will help support the remaining rocket components and the Orion spacecraft during final assembly of the Artemis II Moon rocket and provide more than 75 percent of the total SLS thrust during liftoff from NASA Kennedy’s Launch Pad 39B.

CAPE CANAVERAL, Fla. – In the Vehicle Assembly Building's High Bay 4 at NASA's Kennedy Space Center in Florida, a crane lifts Super Stack 2, part of the Ares I-X upper stage. The stack will be attached to Super Stack 1 across the transfer aisle in High Bay 3. At left is Super Stack 3. The upper stage comprises five super stacks, which are integrated with the four-segment solid rocket booster first stage on the mobile launch platform. Ares I-X is the test vehicle for the Ares I, which is part of the Constellation Program to return men to the moon and beyond. The Ares I-X flight test is targeted for Oct. 31, pending formal NASA Headquarters approval. Photo credit: NASA/Tim Jacobs

CAPE CANAVERAL, Fla. – In the Vehicle Assembly Building's High Bay 4 at NASA's Kennedy Space Center in Florida, a crane begins moving the Ares I-X Super Stack 4 to High Bay 3 for integration with Super Stack 3. At left are the crew module-launch abort system and simulator service module-service adapter stack and the "birdcage," the special crane that will lift the stack. Five super stacks make up the upper stage that will be integrated with the four-segment solid rocket booster first stage on the mobile launch platform. Ares I-X is the test vehicle for the Ares I, which is part of the Constellation Program to return men to the moon and beyond. The Ares I-X flight test is targeted for Oct. 31, pending formal NASA Headquarters approval. Photo credit: NASA/Dimitri Gerondidakis

CAPE CANAVERAL, Fla. – In the Vehicle Assembly Building's High Bay 4 at NASA's Kennedy Space Center in Florida, a crane lifts the Ares I-X Super Stack 4. The stack will be moved to High Bay 3 for integration with Super Stack 3. At left is the crew module-launch abort system and simulator service module-service adapter stack. Five super stacks make up the upper stage that will be integrated with the four-segment solid rocket booster first stage on the mobile launch platform. Ares I-X is the test vehicle for the Ares I, which is part of the Constellation Program to return men to the moon and beyond. The Ares I-X flight test is targeted for Oct. 31, pending formal NASA Headquarters approval. Photo credit: NASA/Dimitri Gerondidakis

KENNEDY SPACE CENTER, FLA. - In the Vehicle Assembly Building, the forward assembly (nose cap and frustum) is moved away from the solid rocket booster (SRB). The destacking is part of time and cycle activities. The SRB was part of the stack on Atlantis originally scheduled for a March 1, 2003, launch on mission STS-114. The SRBs and external tank were demated in February 2003. The mission is now scheduled to occur no earlier than Sept. 12, 2004, on Atlantis.

KENNEDY SPACE CENTER, FLA. - In the Vehicle Assembly Building, the forward assembly (nose cap and frustum) is lifted away from the solid rocket booster (SRBThe destacking is part of time and cycle activities. The SRB was part of the stack on Atlantis originally scheduled for a March 1, 2003, launch on mission STS-114. The SRBs and external tank were demated in February 2003. The mission is now scheduled to occur no earlier than Sept. 12, 2004, on Atlantis.

KENNEDY SPACE CENTER, FLA. - In the Vehicle Assembly Building, a KSC employee loosens a bolt on part of the forward assembly of a solid rocket booster (SRB) before destacking. The SRB was part of the stack on Atlantis originally scheduled for a March 1, 2003, launch on mission STS-114. The SRBs and external tank were demated in February 2003. The destacking is part of time and cycle activities. STS-114 is now scheduled to occur no earlier than Sept. 12, 2004, on Atlantis.

KENNEDY SPACE CENTER, FLA. - In the Vehicle Assembly Building, after being removed from the solid rocket booster (SRB), the forward assembly is lowered from high above the transfer aisle. The destacking is part of time and cycle activities. The SRB was part of the stack on Atlantis originally scheduled for a March 1, 2003, launch on mission STS-114. The SRBs and external tank were demated in February 2003. The mission is now scheduled to occur no earlier than Sept. 12, 2004, on Atlantis.

KENNEDY SPACE CENTER, FLA. - In the Vehicle Assembly Building, after being removed from the solid rocket booster (SRB), the forward assembly is lowered toward a transporter below in the transfer aisle. The destacking is part of time and cycle activities. The SRB was part of the stack on Atlantis originally scheduled for a March 1, 2003, launch on mission STS-114. The SRBs and external tank were demated in February 2003. The mission is now scheduled to occur no earlier than Sept. 12, 2004, on Atlantis.

KENNEDY SPACE CENTER, FLA. - In the Vehicle Assembly Building, KSC employees help guide the destacking of the forward assembly (nose cap and frustum) from a solid rocket booster (SRB) after the bolts were removedThe destacking is part of time and cycle activities. The SRB was part of the stack on Atlantis originally scheduled for a March 1, 2003, launch on mission STS-114. The SRBs and external tank were demated in February 2003. The mission is now scheduled to occur no earlier than Sept. 12, 2004, on Atlantis.