As early as September 1972, the Marshall Space Flight Center arnounced plans for a series of 20 water-entry simulation tests with a solid-fueled rocket casing assembly. The tests would provide valuable data for assessment of solid rocket booster parachute water recovery and aid in preliminary solid rocket motor design.

The towing ship, Liberty, towed a recovered solid rocket booster (SRB) for the STS-3 mission to Port Canaveral, Florida. The recovered SRB would be inspected and refurbished for reuse. The Shuttle's SRB's and solid rocket motors (SRM's) are the largest ever built and the first designed for refurbishment and reuse. Standing nearly 150-feet high, the twin boosters provide the majority of thrust for the first two minutes of flight, about 5.8 million pounds. The requirement for reusability dictated durable materials and construction to preclude corrosion of the hardware exposed to the harsh seawater environment. The SRB contains a complete recovery subsystem that includes parachutes, beacons, lights, and tow fixture.

Space Shuttle Projects

This photograph is a long shot view of a full scale solid rocket motor (SRM) for the solid rocket booster (SRB) being test fired at Morton Thiokol's Wasatch Operations in Utah. The twin boosters provide the majority of thrust for the first two minutes of flight, about 5.8 million pounds, augmenting the Shuttle's main propulsion system during liftoff. The major design drivers for the SRM's were high thrust and reuse. The desired thrust was achieved by using state-of-the-art solid propellant and by using a long cylindrical motor with a specific core design that allows the propellant to burn in a carefully controlled marner. Under the direction of the Marshall Space Flight Center, the SRM's are provided by the Morton Thiokol Corporation.

Space Shuttle Projects

The solid rocket booster (SRB) structural test article is being installed in the Solid Rocket Booster Test Facility for the structural and load verification test at the Marshall Space Flight Center (MSFC). The Shuttle's two SRB's are the largest solids ever built and the first designed for refurbishment and reuse. Standing nearly 150-feet high, the twin boosters provide the majority of thrust for the first two minutes of flight, about 5.8 million pounds, augmenting the Shuttle's main propulsion system during liftoff. The major design drivers for the solid rocket motors (SRM's) were high thrust and reuse. The desired thrust was achieved by using state-of-the-art solid propellant and by using a long cylindrical motor with a specific core design that allows the propellant to burn in a carefully controlled marner. At burnout, the boosters separate from the external tank and drop by parachute to the ocean for recovery and subsequent refurbishment.

Space Shuttle Projects

he left solid rocket booster (SRB) for the STS-5 mission is shown in this photograph at the moment of splashdown after its separation from the external tank. This view was photographed from a Cast Glance aircraft. After impact to the ocean, it was retrieved and refurbished for reuse. The Shuttle's SRB's and solid rocket motors (SRM's) are the largest ever built and the first designed for refurbishment and reuse. Standing nearly 150-feet high, the twin boosters provide the majority of thrust for the first two minutes of flight, about 5.8 million pounds. That is equivalent to 44 million horsepower, or the combined power of 400,000 subcompact cars.

Space Shuttle Projects

The right solid rocket booster (SRB) for the STS-5 mission, with one chute opened, falls after its separation from the external tank (ET). This view was photographed from a Cast Glance aircraft. After impact to the ocean, it was retrieved and refurbished for reuse. The Shuttle's SRB's and solid rocket motors (SRM's) are the largest ever built and the first designed for refurbishment and reuse. Standing nearly 150-feet high, the twin boosters provide the majority of thrust for the first two minutes of flight, about 5.8 million pounds. That is equivalent to 44 million horsepower, or the combined power of 400,000 subcompact cars.

Space Shuttle Projects

The towing ship, Liberty, towed a recovered solid rocket booster (SRB) for the STS-5 mission to Port Canaveral, Florida. The recovered SRB would be inspected and refurbished for reuse. The Shuttle's SRB's and solid rocket motors (SRM's) are the largest ever built and the first designed for refurbishment and reuse. Standing nearly 150-feet high, the twin boosters provide the majority of thrust for the first two minutes of flight, about 5.8 million pounds. The requirement for reusability dictated durable materials and construction to preclude corrosion of the hardware exposed to the harsh seawater environment. The SRB contains a complete recovery subsystem that includes parachutes, beacons, lights, and tow fixture.

Space Shuttle Projects

This is a photograph of the solid rocket booster's (SRB's) Qualification Motor-1 (QM-1) being prepared for a static firing in a test stand at the Morton Thiokol Test Site in Wasatch, Utah, showing the aft end of the booster. The twin boosters provide the majority of thrust for the first two minutes of flight, about 5.8 million pounds, augmenting the Shuttle's main propulsion system during liftoff. The major design drivers for the solid rocket motors (SRM's) were high thrust and reuse. The desired thrust was achieved by using state-of-the-art solid propellant and by using a long cylindrical motor with a specific core design that allows the propellant to burn in a carefully controlled marner. Under the direction of the Marshall Space Flight Center, the SRM's are provided by the Morton Thiokol Corporation.

Space Shuttle Projects

This illustration is a cutaway of the solid rocket booster (SRB) sections with callouts. The Shuttle's two SRB's are the largest solids ever built and the first designed for refurbishment and reuse. Standing nearly 150-feet high, the twin boosters provide the majority of thrust for the first two minutes of flight, about 5.8 million pounds, augmenting the Shuttle's main propulsion system during liftoff. The major design drivers for the solid rocket motors (SRM's) were high thrust and reuse. The desired thrust was achieved by using state-of-the-art solid propellant and by using a long cylindrical motor with a specific core design that allows the propellant to burn in a carefully controlled marner. At burnout, the boosters separate from the external tank and drop by parachute to the ocean for recovery and subsequent refurbishment. The boosters are designed to survive water impact at almost 60 miles per hour, maintain flotation with minimal damage, and preclude corrosion of the hardware exposed to the harsh seawater environment. Under the project management of the Marshall Space Flight Center, the SRB's are assembled and refurbished by the United Space Boosters. The SRM's are provided by the Morton Thiokol Corporation.

Space Shuttle Projects

The structural test article to be used in the solid rocket booster (SRB) structural and load verification tests is being assembled in a high bay building of the Marshall Space Flight Center (MSFC). The Shuttle's two SRB's are the largest solids ever built and the first designed for refurbishment and reuse. Standing nearly 150-feet high, the twin boosters provide the majority of thrust for the first two minutes of flight, about 5.8 million pounds, augmenting the Shuttle's main propulsion system during liftoff. The major design drivers for the solid rocket motors (SRM's) were high thrust and reuse. The desired thrust was achieved by using state-of-the-art solid propellant and by using a long cylindrical motor with a specific core design that allows the propellant to burn in a carefully controlled marner. At burnout, the boosters separate from the external tank and drop by parachute to the ocean for recovery and subsequent refurbishment.

Stage Separation Test of the Space Launch System(SLS) in the Langley Unitary Plan Wind Tunnel (UPWT). The model used High Pressure air blown through the solid rocket boosters. (SRB) to simulate the booster separation motors (BSM) firing.

The Unitary Plan Wind Tunnel(UPWT) Test 1891 Space Launch System

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CAPE CANAVERAL, Fla. – Workers help secure one of two solid rocket boosters to a mooring at Port Canaveral in Florida. Liberty Star, one of NASA’s two booster retrieval ships, towed the spent booster from space shuttle Atlantis’ final launch to the port. The shuttle’s two solid rocket booster casings and associated flight hardware are recovered in the Atlantic Ocean after every launch by Freedom Star and Liberty Star. The boosters impact the Atlantic about seven minutes after liftoff, and the retrieval ships are stationed about 10 miles from the impact area at the time of splashdown. After the spent segments are processed, they will be transported to Utah, where they will be deserviced and stored, if needed. Atlantis began its final flight, STS-135, at 11:29 a.m. EDT on July 8 to deliver the Raffaello multi-purpose logistics module packed with supplies and spare parts to the International Space Station. Photo credit: NASA/Kim Shiflett

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CAPE CANAVERAL, Fla. – One of two solid rocket boosters is secured to a mooring at Port Canaveral in Florida. Liberty Star, one of NASA’s two booster retrieval ships, towed the spent booster from space shuttle Atlantis’ final launch to the port. The shuttle’s two solid rocket booster casings and associated flight hardware are recovered in the Atlantic Ocean after every launch by Freedom Star and Liberty Star. The boosters impact the Atlantic about seven minutes after liftoff, and the retrieval ships are stationed about 10 miles from the impact area at the time of splashdown. After the spent segments are processed, they will be transported to Utah, where they will be deserviced and stored, if needed. Atlantis began its final flight, STS-135, at 11:29 a.m. EDT on July 8 to deliver the Raffaello multi-purpose logistics module packed with supplies and spare parts to the International Space Station. Photo credit: NASA/Kim Shiflett

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CAPE CANAVERAL, Fla. – One of two solid rocket boosters is lifted above a mooring at Port Canaveral in Florida. Liberty Star, one of NASA’s two booster retrieval ships, towed the spent booster from space shuttle Atlantis’ final launch to the port. The shuttle’s two solid rocket booster casings and associated flight hardware are recovered in the Atlantic Ocean after every launch by Freedom Star and Liberty Star. The boosters impact the Atlantic about seven minutes after liftoff, and the retrieval ships are stationed about 10 miles from the impact area at the time of splashdown. After the spent segments are processed, they will be transported to Utah, where they will be deserviced and stored, if needed. Atlantis began its final flight, STS-135, at 11:29 a.m. EDT on July 8 to deliver the Raffaello multi-purpose logistics module packed with supplies and spare parts to the International Space Station. Photo credit: NASA/Kim Shiflett

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CAPE CANAVERAL, Fla. – One of two solid rocket boosters is lifted above a mooring at Port Canaveral in Florida. Liberty Star, one of NASA’s two booster retrieval ships, towed the spent booster from space shuttle Atlantis’ final launch to the port. The shuttle’s two solid rocket booster casings and associated flight hardware are recovered in the Atlantic Ocean after every launch by Freedom Star and Liberty Star. The boosters impact the Atlantic about seven minutes after liftoff, and the retrieval ships are stationed about 10 miles from the impact area at the time of splashdown. After the spent segments are processed, they will be transported to Utah, where they will be deserviced and stored, if needed. Atlantis began its final flight, STS-135, at 11:29 a.m. EDT on July 8 to deliver the Raffaello multi-purpose logistics module packed with supplies and spare parts to the International Space Station. Photo credit: NASA/Kim Shiflett

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CAPE CANAVERAL, Fla. – A worker secures one of two solid rocket boosters to a mooring at Port Canaveral in Florida. Liberty Star, one of NASA’s two booster retrieval ships, towed the spent booster from space shuttle Atlantis’ final launch to the port. The shuttle’s two solid rocket booster casings and associated flight hardware are recovered in the Atlantic Ocean after every launch by Freedom Star and Liberty Star. The boosters impact the Atlantic about seven minutes after liftoff, and the retrieval ships are stationed about 10 miles from the impact area at the time of splashdown. After the spent segments are processed, they will be transported to Utah, where they will be deserviced and stored, if needed. Atlantis began its final flight, STS-135, at 11:29 a.m. EDT on July 8 to deliver the Raffaello multi-purpose logistics module packed with supplies and spare parts to the International Space Station. Photo credit: NASA/Kim Shiflett

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CAPE CANAVERAL, Fla. – One of two solid rocket boosters is secured to a mooring at Port Canaveral in Florida. Liberty Star, one of NASA’s two booster retrieval ships, towed the spent booster from space shuttle Atlantis’ final launch to the port. The shuttle’s two solid rocket booster casings and associated flight hardware are recovered in the Atlantic Ocean after every launch by Freedom Star and Liberty Star. The boosters impact the Atlantic about seven minutes after liftoff, and the retrieval ships are stationed about 10 miles from the impact area at the time of splashdown. After the spent segments are processed, they will be transported to Utah, where they will be deserviced and stored, if needed. Atlantis began its final flight, STS-135, at 11:29 a.m. EDT on July 8 to deliver the Raffaello multi-purpose logistics module packed with supplies and spare parts to the International Space Station. Photo credit: NASA/Kim Shiflett

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CAPE CANAVERAL, Fla. – Liberty Star, one of NASA’s solid rocket booster retrieval ships, tows a spent booster from space shuttle Atlantis’ final launch, to Port Canaveral in Florida. The shuttle’s two solid rocket booster casings and associated flight hardware are recovered in the Atlantic Ocean after every launch by Freedom Star and Liberty Star. The boosters impact the Atlantic about seven minutes after liftoff and the retrieval ships are stationed about 10 miles from the impact area at the time of splashdown. After the spent segments are processed, they will be transported to Utah, where they will be deserviced and stored, if needed. Atlantis began its final flight, STS-135, at 11:29 a.m. EDT on July 8 to deliver the Raffaello multi-purpose logistics module packed with supplies and spare parts to the International Space Station. Photo credit: NASA/Kim Shiflett

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CAPE CANAVERAL, Fla. – A United Space Alliance tugboat driver monitors the progress as Liberty Star, one of NASA’s solid rocket booster retrieval ships, tows a spent booster from space shuttle Atlantis’ final launch to Port Canaveral in Florida. The shuttle’s two solid rocket booster casings and associated flight hardware are recovered in the Atlantic Ocean after every launch by Freedom Star and Liberty Star. The boosters impact the Atlantic about seven minutes after liftoff, and the retrieval ships are stationed about 10 miles from the impact area at the time of splashdown. After the spent segments are processed, they will be transported to Utah, where they will be deserviced and stored, if needed. Atlantis began its final flight, STS-135, at 11:29 a.m. EDT on July 8 to deliver the Raffaello multi-purpose logistics module packed with supplies and spare parts to the International Space Station. Photo credit: NASA/Kim Shiflett

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CAPE CANAVERAL, Fla. – Workers assist as Liberty Star, one of NASA’s solid rocket booster retrieval ships, tows a spent booster from space shuttle Atlantis’ final launch to Port Canaveral in Florida. The shuttle’s two solid rocket booster casings and associated flight hardware are recovered in the Atlantic Ocean after every launch by Freedom Star and Liberty Star. The boosters impact the Atlantic about seven minutes after liftoff, and the retrieval ships are stationed about 10 miles from the impact area at the time of splashdown. After the spent segments are processed, they will be transported to Utah, where they will be deserviced and stored, if needed. Atlantis began its final flight, STS-135, at 11:29 a.m. EDT on July 8 to deliver the Raffaello multi-purpose logistics module packed with supplies and spare parts to the International Space Station. Photo credit: NASA/Kim Shiflett

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CAPE CANAVERAL, Fla. – Liberty Star, one of NASA’s solid rocket booster retrieval ships, tows a spent booster from space shuttle Atlantis’ final launch, to Port Canaveral in Florida. The shuttle’s two solid rocket booster casings and associated flight hardware are recovered in the Atlantic Ocean after every launch by Freedom Star and Liberty Star. The boosters impact the Atlantic about seven minutes after liftoff, and the retrieval ships are stationed about 10 miles from the impact area at the time of splashdown. After the spent segments are processed, they will be transported to Utah, where they will be deserviced and stored, if needed. Atlantis began its final flight, STS-135, at 11:29 a.m. EDT on July 8 to deliver the Raffaello multi-purpose logistics module packed with supplies and spare parts to the International Space Station. Photo credit: NASA/Kim Shiflett

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CAPE CANAVERAL, Fla. – Liberty Star, one of NASA’s solid rocket booster retrieval ships, tows a spent booster from space shuttle Atlantis’ final launch, to Port Canaveral in Florida. The shuttle’s two solid rocket booster casings and associated flight hardware are recovered in the Atlantic Ocean after every launch by Freedom Star and Liberty Star. The boosters impact the Atlantic about seven minutes after liftoff and the retrieval ships are stationed about 10 miles from the impact area at the time of splashdown. After the spent segments are processed, they will be transported to Utah, where they will be deserviced and stored, if needed. Atlantis began its final flight, STS-135, at 11:29 a.m. EDT on July 8 to deliver the Raffaello multi-purpose logistics module packed with supplies and spare parts to the International Space Station. Photo credit: NASA/Kim Shiflett

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CAPE CANAVERAL, Fla. – Workers watch as Liberty Star, one of NASA’s solid rocket booster retrieval ships, tows a spent booster from space shuttle Atlantis’ final launch, to Port Canaveral in Florida. The shuttle’s two solid rocket booster casings and associated flight hardware are recovered in the Atlantic Ocean after every launch by Freedom Star and Liberty Star. The boosters impact the Atlantic about seven minutes after liftoff, and the retrieval ships are stationed about 10 miles from the impact area at the time of splashdown. After the spent segments are processed, they will be transported to Utah, where they will be deserviced and stored, if needed. Atlantis began its final flight, STS-135, at 11:29 a.m. EDT on July 8 to deliver the Raffaello multi-purpose logistics module packed with supplies and spare parts to the International Space Station. Photo credit: NASA/Kim Shiflett

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CAPE CANAVERAL, Fla. – A segment of a solid rocket booster, the aft skirt, can be seen as the booster is lifted above a mooring at Port Canaveral in Florida. Liberty Star, one of NASA’s two booster retrieval ships, towed the spent booster from space shuttle Atlantis’ final launch to the port. The shuttle’s two solid rocket booster casings and associated flight hardware are recovered in the Atlantic Ocean after every launch by Freedom Star and Liberty Star. The boosters impact the Atlantic about seven minutes after liftoff, and the retrieval ships are stationed about 10 miles from the impact area at the time of splashdown. After the spent segments are processed, they will be transported to Utah, where they will be deserviced and stored, if needed. Atlantis began its final flight, STS-135, at 11:29 a.m. EDT on July 8 to deliver the Raffaello multi-purpose logistics module packed with supplies and spare parts to the International Space Station. Photo credit: NASA/Kim Shiflett

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CAPE CANAVERAL, Fla. -- In the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida, technicians select the rubber rings that will cushion and secure the left forward center solid rocket booster segments together. The booster along with its twin will be stacked on the mobile launcher platform along with an external fuel tank awaiting the arrival of space shuttle Endeavour for its flight to the International Space Station. As the final planned mission of the Space Shuttle Program, Endeavour and its crew will deliver the Alpha Magnetic Spectrometer, as well as critical spare components to the station on the STS-134 mission targeted for launch Feb. 26, 2011. For more information visit, http://www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts134/index.html. Photo credit: NASA/Kim Shiflett

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CAPE CANAVERAL, Fla. -- In the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida, technicians check the alignment of the rubber rings after installation to the left forward center solid rocket booster segment. The booster along with its twin will be stacked on the mobile launcher platform along with an external fuel tank awaiting the arrival of space shuttle Endeavour for its flight to the International Space Station. As the final planned mission of the Space Shuttle Program, Endeavour and its crew will deliver the Alpha Magnetic Spectrometer, as well as critical spare components to the station on the STS-134 mission targeted for launch Feb. 26, 2011. For more information visit, http://www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts134/index.html. Photo credit: NASA/Kim Shiflett

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CAPE CANAVERAL, Fla. -- In the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida, technicians install the rubber rings around the circumference of the left forward center solid rocket booster segment before the segments are joined. The booster along with its twin will be stacked on the mobile launcher platform along with an external fuel tank awaiting the arrival of space shuttle Endeavour for its flight to the International Space Station. As the final planned mission of the Space Shuttle Program, Endeavour and its crew will deliver the Alpha Magnetic Spectrometer, as well as critical spare components to the station on the STS-134 mission targeted for launch Feb. 26, 2011. For more information visit, http://www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts134/index.html. Photo credit: NASA/Kim Shiflett

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CAPE CANAVERAL, Fla. -- In the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida, technicians stand around the left forward center solid rocket booster segment to properly position the rubber rings around the circumference. The booster along with its twin will be stacked on the mobile launcher platform along with an external fuel tank awaiting the arrival of space shuttle Endeavour for its flight to the International Space Station. As the final planned mission of the Space Shuttle Program, Endeavour and its crew will deliver the Alpha Magnetic Spectrometer, as well as critical spare components to the station on the STS-134 mission targeted for launch Feb. 26, 2011. For more information visit, http://www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts134/index.html. Photo credit: NASA/Kim Shiflett

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CAPE CANAVERAL, Fla. -- In the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida, a worker thoroughly inspects a rubber ring section with an ultraviolet light before installation on the left forward center solid rocket booster segment. The booster along with its twin will be stacked on the mobile launcher platform along with an external fuel tank awaiting the arrival of space shuttle Endeavour for its flight to the International Space Station. As the final planned mission of the Space Shuttle Program, Endeavour and its crew will deliver the Alpha Magnetic Spectrometer, as well as critical spare components to the station on the STS-134 mission targeted for launch Feb. 26, 2011. For more information visit, http://www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts134/index.html. Photo credit: NASA/Kim Shiflett

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CAPE CANAVERAL, Fla. -- In the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida, a technician is applying HD calcium grease to the field joint along the base of the left forward center solid rocket booster segment to inhibit rust and corrosion from occurring in the area. The booster along with its twin will be stacked on the mobile launcher platform along with an external fuel tank awaiting the arrival of space shuttle Endeavour for its flight to the International Space Station. As the final planned mission of the Space Shuttle Program, Endeavour and its crew will deliver the Alpha Magnetic Spectrometer, as well as critical spare components to the station on the STS-134 mission targeted for launch Feb. 26, 2011. For more information visit, http://www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts134/index.html. Photo credit: NASA/Kim Shiflett

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CAPE CANAVERAL, Fla. -- In the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida, technicians check the channel around the circumference of the left forward center solid rocket booster segment for dirt and debris before processing continues. The booster along with its twin will be stacked on the mobile launcher platform along with an external fuel tank awaiting the arrival of space shuttle Endeavour for its flight to the International Space Station. As the final planned mission of the Space Shuttle Program, Endeavour and its crew will deliver the Alpha Magnetic Spectrometer, as well as critical spare components to the station on the STS-134 mission targeted for launch Feb. 26, 2011. For more information visit, http://www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts134/index.html. Photo credit: NASA/Kim Shiflett

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CAPE CANAVERAL, Fla. -- In the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida, a technician double-checks the channel around the circumference of the left forward center solid rocket booster segment for dirt and debris before processing continues. The booster along with its twin will be stacked on the mobile launcher platform along with an external fuel tank awaiting the arrival of space shuttle Endeavour for its flight to the International Space Station. As the final planned mission of the Space Shuttle Program, Endeavour and its crew will deliver the Alpha Magnetic Spectrometer, as well as critical spare components to the station on the STS-134 mission targeted for launch Feb. 26, 2011. For more information visit, http://www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts134/index.html. Photo credit: NASA/Kim Shiflett

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CAPE CANAVERAL, Fla. -- In the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida, workers apply a special solution to the connecting sections of the left forward center solid rocket booster segment before the upper segment is joined to it. The booster along with its twin will be stacked on the mobile launcher platform along with an external fuel tank awaiting the arrival of space shuttle Endeavour for its flight to the International Space Station. As the final planned mission of the Space Shuttle Program, Endeavour and its crew will deliver the Alpha Magnetic Spectrometer, as well as critical spare components to the station on the STS-134 mission targeted for launch Feb. 26, 2011. For more information visit, http://www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts134/index.html. Photo credit: NASA/Kim Shiflett

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CAPE CANAVERAL, Fla. -- In the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida, workers hold up the rubber rings while another thoroughly inspects each section with an ultraviolet light before the rings are installed on the left forward center solid rocket booster segment. The booster along with its twin will be stacked on the mobile launcher platform along with an external fuel tank awaiting the arrival of space shuttle Endeavour for its flight to the International Space Station. As the final planned mission of the Space Shuttle Program, Endeavour and its crew will deliver the Alpha Magnetic Spectrometer, as well as critical spare components to the station on the STS-134 mission targeted for launch Feb. 26, 2011. For more information visit, http://www.nasa.gov/mission_pages/shuttle/shuttlemissions/sts134/index.html. Photo credit: NASA/Kim Shiflett

Orion EM-1 Forward Skirt Move from Hangar AF to BFF

The Exploration Mission-1 (EM-1) left-hand forward skirt for NASA's Space Launch System (SLS) solid rocket boosters arrives at the Booster Fabrication Facility (BFF) at NASA's Kennedy Space Center in Florida from Hangar AE at Cape Canaveral Air Force Station. In the BFF, the forward skirt will be inspected and prepared for use on the left-hand solid rocket booster for EM-1. NASA's Orion spacecraft will fly atop the SLS rocket on its first uncrewed flight test.

Orion EM-1 Forward Skirt Move from Hangar AF to BFF

The Exploration Mission-1 (EM-1) left-hand forward skirt for NASA's Space Launch System (SLS) solid rocket boosters arrives inside the high bay at the Booster Fabrication Facility (BFF) at NASA's Kennedy Space Center in Florida. In the BFF, the forward skirt will be inspected and prepared for use on the left-hand solid rocket booster for EM-1. NASA's Orion spacecraft will fly atop the SLS rocket on its first uncrewed flight test.

Orion EM-1 Forward Skirt Move from Hangar AF to BFF

The Exploration Mission-1 (EM-1) left-hand forward skirt for NASA's Space Launch System (SLS) solid rocket boosters is transported by truck to the Booster Fabrication Facility (BFF) at NASA's Kennedy Space Center in Florida from Hangar AE at Cape Canaveral Air Force Station. In the BFF, the forward skirt will be inspected and prepared for use on the left-hand solid rocket booster for EM-1. NASA's Orion spacecraft will fly atop the SLS rocket on its first uncrewed flight test.

Orion EM-1 Forward Skirt Move from Hangar AF to BFF

The Exploration Mission-1 (EM-1) left-hand forward skirt for NASA's Space Launch System (SLS) solid rocket boosters arrives inside the high bay at the Booster Fabrication Facility (BFF) at NASA's Kennedy Space Center in Florida. In the BFF, the forward skirt will be inspected and prepared for use on the left-hand solid rocket booster for EM-1. NASA's Orion spacecraft will fly atop the SLS rocket on its first uncrewed flight test.

Orion EM-1 Forward Skirt Move from Hangar AF to BFF

The Exploration Mission-1 (EM-1) left-hand forward skirt for NASA's Space Launch System (SLS) solid rocket boosters is transported by truck to the Booster Fabrication Facility (BFF) at NASA's Kennedy Space Center in Florida from Hangar AE at Cape Canaveral Air Force Station. In the BFF, the forward skirt will be inspected and prepared for use on the left-hand solid rocket booster for EM-1. NASA's Orion spacecraft will fly atop the SLS rocket on its first uncrewed flight test.

Orion EM-1 Forward Skirt Move from Hangar AF to BFF

The Exploration Mission-1 (EM-1) left-hand forward skirt for NASA's Space Launch System (SLS) solid rocket boosters is prepared for its move from Hangar AE at Cape Canaveral Air Force Station in Florida, to the Booster Fabrication Facility (BFF) at Kennedy Space Center. In the BFF, the forward skirt will be inspected and prepared for use on the left-hand solid rocket booster for EM-1. NASA's Orion spacecraft will fly atop the SLS rocket on its first uncrewed flight test.

Orion EM-1 Forward Skirt Move from Hangar AF to BFF

The Exploration Mission-1 (EM-1) left-hand forward skirt for NASA's Space Launch System (SLS) solid rocket boosters is moved out of Hangar AE at Cape Canaveral Air Force Station in Florida, for transport to the Booster Fabrication Facility (BFF) at Kennedy Space Center. In the BFF, the forward skirt will be inspected and prepared for use on the left-hand solid rocket booster for EM-1. NASA's Orion spacecraft will fly atop the SLS rocket on its first uncrewed flight test.

Orion EM-1 Forward Skirt Move from Hangar AF to BFF

The Exploration Mission-1 (EM-1) left-hand forward skirt for NASA's Space Launch System (SLS) solid rocket boosters arrives at the entrance to the high bay at the Booster Fabrication Facility (BFF) at NASA's Kennedy Space Center in Florida. In the BFF, the forward skirt will be inspected and prepared for use on the left-hand solid rocket booster for EM-1. NASA's Orion spacecraft will fly atop the SLS rocket on its first uncrewed flight test.

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CAPE CANAVERAL, Fla. – Workers monitor the progress as one of two solid rocket boosters is lifted above a mooring at Port Canaveral in Florida. Liberty Star, one of NASA’s two booster retrieval ships, towed the spent booster from space shuttle Atlantis’ final launch to the port. The shuttle’s two solid rocket booster casings and associated flight hardware are recovered in the Atlantic Ocean after every launch by Freedom Star and Liberty Star. The boosters impact the Atlantic about seven minutes after liftoff, and the retrieval ships are stationed about 10 miles from the impact area at the time of splashdown. After the spent segments are processed, they will be transported to Utah, where they will be deserviced and stored, if needed. Atlantis began its final flight, STS-135, at 11:29 a.m. EDT on July 8 to deliver the Raffaello multi-purpose logistics module packed with supplies and spare parts to the International Space Station. Photo credit: NASA/Kim Shiflett

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CAPE CANAVERAL, Fla. – One of two solid rocket boosters is transported to Hangar AF at Cape Canaveral Air Force Station in Florida. Liberty Star, one of NASA’s two booster retrieval ships, towed the spent booster from space shuttle Atlantis’ final launch, to a mooring at Port Canaveral. The shuttle’s two solid rocket booster casings and associated flight hardware are recovered in the Atlantic Ocean after every launch by Freedom Star and Liberty Star. The boosters impact the Atlantic about seven minutes after liftoff, and the retrieval ships are stationed about 10 miles from the impact area at the time of splashdown. After the spent segments are processed, they will be transported to Utah, where they will be deserviced and stored, if needed. Atlantis began its final flight, STS-135, at 11:29 a.m. EDT on July 8 to deliver the Raffaello multi-purpose logistics module packed with supplies and spare parts to the International Space Station. Photo credit: NASA/Kim Shiflett

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CAPE CANAVERAL, Fla. – Workers prepare one of two solid rocket boosters for deservicing at Hangar AF at Cape Canaveral Air Force Station in Florida. Liberty Star, one of NASA’s two booster retrieval ships, towed the spent booster from space shuttle Atlantis’ final launch to a mooring at Port Canaveral. The shuttle’s two solid rocket booster casings and associated flight hardware are recovered in the Atlantic Ocean after every launch by Freedom Star and Liberty Star. The boosters impact the Atlantic about seven minutes after liftoff, and the retrieval ships are stationed about 10 miles from the impact area at the time of splashdown. After the spent segments are processed, they will be transported to Utah, where they will be deserviced and stored, if needed. Atlantis began its final flight, STS-135, at 11:29 a.m. EDT on July 8 to deliver the Raffaello multi-purpose logistics module packed with supplies and spare parts to the International Space Station. Photo credit: NASA/Kim Shiflett

KSC-2011-5490

CAPE CANAVERAL, Fla. -- One of two solid rocket boosters is transported from a mooring at Port Canaveral in Florida to Hangar AF at Cape Canaveral Air Force Station. Liberty Star, one of NASA’s two booster retrieval ships, towed the spent booster from space shuttle Atlantis’ final launch to the port. The shuttle’s two solid rocket booster casings and associated flight hardware are recovered in the Atlantic Ocean after every launch by Freedom Star and Liberty Star. The boosters impact the Atlantic about seven minutes after liftoff, and the retrieval ships are stationed about 10 miles from the impact area at the time of splashdown. After the spent segments are processed, they will be transported to Utah, where they will be deserviced and stored, if needed. Atlantis began its final flight, STS-135, at 11:29 a.m. EDT on July 8 to deliver the Raffaello multi-purpose logistics module packed with supplies and spare parts to the International Space Station. Photo credit: NASA/Kim Shiflett

KSC-2011-5491

CAPE CANAVERAL, Fla. – One of two solid rocket boosters is transported to Hangar AF at Cape Canaveral Air Force Station in Florida. Liberty Star, one of NASA’s two booster retrieval ships, towed the spent booster from space shuttle Atlantis’ final launch to a mooring at Port Canaveral. The shuttle’s two solid rocket booster casings and associated flight hardware are recovered in the Atlantic Ocean after every launch by Freedom Star and Liberty Star. The boosters impact the Atlantic about seven minutes after liftoff, and the retrieval ships are stationed about 10 miles from the impact area at the time of splashdown. After the spent segments are processed, they will be transported to Utah, where they will be deserviced and stored, if needed. Atlantis began its final flight, STS-135, at 11:29 a.m. EDT on July 8 to deliver the Raffaello multi-purpose logistics module packed with supplies and spare parts to the International Space Station. Photo credit: NASA/Kim Shiflett

KSC-2011-5493

CAPE CANAVERAL, Fla. – One of two solid rocket boosters is transported to Hangar AF at Cape Canaveral Air Force Station in Florida. Liberty Star, one of NASA’s two booster retrieval ships, towed the spent booster from space shuttle Atlantis’ final launch to a mooring at Port Canaveral. The shuttle’s two solid rocket booster casings and associated flight hardware are recovered in the Atlantic Ocean after every launch by Freedom Star and Liberty Star. The boosters impact the Atlantic about seven minutes after liftoff, and the retrieval ships are stationed about 10 miles from the impact area at the time of splashdown. After the spent segments are processed, they will be transported to Utah, where they will be deserviced and stored, if needed. Atlantis began its final flight, STS-135, at 11:29 a.m. EDT on July 8 to deliver the Raffaello multi-purpose logistics module packed with supplies and spare parts to the International Space Station. Photo credit: NASA/Kim Shiflett

POST-LAUNCH (SOLID ROCKET BOOSTER [SRB]) - STS-1 - FL

S81-30953 (13 April 1981) --- With one of the two expended solid rocket boosters from the launch of the space shuttle Columbia in tow, the recovery ship UTC Liberty heads toward the Trident Submarine Basin at Port Canaveral, south of NASA's Kennedy Space Center (KSC). The ship, built especially for the task of recovering expended boosters and their parachutes, is bound for ran overnight berth in the submarine basin, before continuing tomorrow toward recovery facilities at KSC. Photo credit: NASA

UTC LIBERTY RETURN - SOLID ROCKET BOOSTER (SRB) - PORT CANAVERAL, FL

S81-31308 (13 April 1981) --- The solid rocket booster recovery ship UTC Liberty heads for Cape Canaveral Air Force Station after retrieving one of the two booster casings from the launch of Columbia, America?s first space shuttle in orbit. The vessel had been tied up overnight at the Trident Submarine Basin at Port Canaveral, from which point this photograph was made. The boosters and the parachutes that bring them to safe landings in the Atlantic east of NASA's Kennedy Space Center are recovered at sea, dewatered and towed to processing facilities at Cape Canaveral Air Force Station. Photo credit: NASA

America 250 Logo Painting on Artemis II SRB

Technicians with NASA’s Exploration Ground Systems unveil on Monday, Dec. 1, 2025, the America 250 logo on the twin SLS (Space Launch System) solid rocket boosters for the Artemis II mission inside the Vehicle Assembly Building at NASA’s Kennedy Space Center in Florida. The SLS rocket and the Orion spacecraft will carry NASA astronauts Reid Wiseman, Victor Glover, Christina Koch, and CSA (Canadian Space Agency) astronaut Jeremy Hansen on a 10-day mission around the Moon and back in early 2026 from Launch Complex 39B at NASA Kennedy. America 250 commemorates the 250th anniversary of the signing of the Declaration of Independence with NASA celebrating the “Spirit of Innovation” theme to inspire future generations.

America 250 Logo Painting on Artemis II SRB

Technicians with NASA’s Exploration Ground Systems unveil on Monday, Dec. 1, 2025, the America 250 logo on the twin SLS (Space Launch System) solid rocket boosters for the Artemis II mission inside the Vehicle Assembly Building at NASA’s Kennedy Space Center in Florida. The SLS rocket and the Orion spacecraft will carry NASA astronauts Reid Wiseman, Victor Glover, Christina Koch, and CSA (Canadian Space Agency) astronaut Jeremy Hansen on a 10-day mission around the Moon and back in early 2026 from Launch Complex 39B at NASA Kennedy. America 250 commemorates the 250th anniversary of the signing of the Declaration of Independence with NASA celebrating the “Spirit of Innovation” theme to inspire future generations.

KENNEDY SPACE CENTER, FLA. - In the Solid Rocket Booster Assembly and Refurbishment Facility (ARF), Donnie Cardigan, with United Space Alliance, installs the parachute camera on the solid rocket booster forward skirt. Refurbishment and subassembly of Shuttle SRB hardware - primarily the forward and aft assemblies - is carried out in the ARF.

KENNEDY SPACE CENTER, FLA. - In the Solid Rocket Booster Assembly and Refurbishment Facility (ARF), Vernon Gibbs, with United Space Alliance, prepares the forward skirt of a solid rocket booster for installation of the parachute camera. Refurbishment and subassembly of Shuttle SRB hardware - primarily the forward and aft assemblies - is carried out in the ARF.

KENNEDY SPACE CENTER, FLA. - In the Solid Rocket Booster Assembly and Refurbishment Facility (ARF), Troy Krout, with United Space Alliance, works on positioning the parachute camera after installation on the solid rocket booster forward skirt. Refurbishment and subassembly of Shuttle SRB hardware - primarily the forward and aft assemblies - is carried out in the ARF.

KENNEDY SPACE CENTER, FLA. - Seen from below and through a solid rocket booster segment mockup, Jeff Thon, an SRB mechanic with United Space Alliance, tests the feasibility of a vertical solid rocket booster propellant grain inspection technique. The inspection of segments is required as part of safety analysis.

KENNEDY SPACE CENTER, FLA. - In the Solid Rocket Booster Assembly and Refurbishment Facility (ARF), Vernon Gibbs, with United Space Alliance, prepares the forward skirt of a solid rocket booster for installation of the parachute camera. Refurbishment and subassembly of Shuttle SRB hardware - primarily the forward and aft assemblies - is carried out in the ARF.

KENNEDY SPACE CENTER, FLA. - Mark Northcraft adjusts the position of the parachute camera just installed on the solid rocket booster forward skirt in the Solid Rocket Booster Assembly and Refurbishment Facility (ARF). Refurbishment and subassembly of Shuttle SRB hardware - primarily the forward and aft assemblies - is carried out in the ARF.

KENNEDY SPACE CENTER, FLA. - Seen from below and through a solid rocket booster segment mockup, Jeff Thon, an SRB mechanic with United Space Alliance, tests the feasibility of a vertical solid rocket booster propellant grain inspection technique. The inspection of segments is required as part of safety analysis.

SLS Booster Aft (Right) Exit Cone Arrival

Workers assist with removal of the shipping container cover from the second Northrop Grumman-manufactured aft exit cone to arrive for the Space Launch System’s solid rocket boosters inside the Rotation, Processing and Surge Facility at NASA’s Kennedy Space Center in Florida on Dec. 9, 2019. The right aft exit cone was shipped from Promontory, Utah. It will be checked out and prepared for the Artemis I uncrewed test flight. The aft exit cones sit at the bottommost part of the twin boosters. The cones help provide added thrust for the boosters, while protecting the aft skirts from the thermal environment during launch.

SLS Booster Aft Exit Cone Arrival

The first of two Northrop Grumman aft exit cones for the Space Launch System’s solid rocket boosters arrives by truck in its shipping container at the Rotation, Processing and Surge Facility at NASA's Kennedy Space Center in Florida on Nov. 4, 2019. The aft exit cone was shipped from Promontory, Utah. It will be checked out and prepared for the Artemis I uncrewed test flight. The aft exit cones sit at the bottommost part of the twin boosters. They are attached to the aft skirts, which contain the booster separation motors. The exit cones help to protect the aft skirts during launch.

SLS Booster Aft Exit Cone Arrival

Workers attach a crane to the first Northrop Grumman aft exit cone to arrive for the Space Launch System’s solid rocket boosters inside the Rotation, Processing and Surge Facility at NASA’s Kennedy Space Center in Florida on Nov. 4, 2019. The aft exit cone was shipped from Promontory, Utah. It will be checked out and prepared for the Artemis I uncrewed test flight. The aft exit cones sit at the bottommost part of the twin boosters. They are attached to the aft skirts, which contain the booster separation motors. The exit cones help to protect the aft skirts during launch.

SLS Booster Aft (Right) Exit Cone Arrival

A crane is used to lift the Northrop Grumman-manufactured right aft exit cone for the Space Launch System’s solid rocket boosters away from its shipping base inside the Rotation, Processing and Surge Facility at NASA’s Kennedy Space Center in Florida on Dec. 9, 2019. The right and left aft exit cones were shipped from Promontory, Utah. They will be checked out and prepared for the Artemis I uncrewed test flight. The aft exit cones sit at the bottommost part of the twin boosters. The cones help provide added thrust for the boosters, while protecting the aft skirts from the thermal environment during launch.

SLS Booster Aft (Right) Exit Cone Arrival

A worker removes one of the securing straps from the second of two Northrop Grumman-manufactured aft exit cones to arrive for the Space Launch System’s solid rocket boosters inside the Rotation, Processing and Surge Facility at NASA’s Kennedy Space Center in Florida on Dec. 9, 2019. The right aft exit cone was shipped from Promontory, Utah. It will be checked out and prepared for the Artemis I uncrewed test flight. The aft exit cones sit at the bottommost part of the twin boosters. The cones help provide added thrust for the boosters, while protecting the aft skirts from the thermal environment during launch.

SLS Booster Aft Exit Cone Arrival

A crane is used to lift the first Northrop Grumman aft exit cone to arrive for the Space Launch System’s solid rocket boosters away from its shipping base inside the Rotation, Processing and Surge Facility at NASA’s Kennedy Space Center in Florida on Nov. 4, 2019. The aft exit cone was shipped from Promontory, Utah. It will be checked out and prepared for the Artemis I uncrewed test flight. The aft exit cones sit at the bottommost part of the twin boosters. They are attached to the aft skirts, which contain the booster separation motors. The exit cones help to protect the aft skirts during launch.

SLS Booster Aft (Right) Exit Cone Arrival

The Northrop Grumman-manufactured right aft exit cone, the second of two for the Space Launch System’s solid rocket boosters, is in view inside the Rotation, Processing and Surge Facility at NASA’s Kennedy Space Center in Florida on Dec. 9, 2019. The aft exit cone was shipped from Promontory, Utah. It will be checked out and prepared for the Artemis I uncrewed test flight. The aft exit cones sit at the bottommost part of the twin boosters. The cones help provide added thrust for the boosters, while protecting the aft skirts from the thermal environment during launch.

SLS Booster Aft Exit Cone Arrival

Workers assist with removal of the shipping container cover from the first Northrop Grumman aft exit cone to arrive for the Space Launch System’s solid rocket boosters inside the Rotation, Processing and Surge Facility at NASA’s Kennedy Space Center in Florida on Nov. 4, 2019. The aft exit cone was shipped from Promontory, Utah. It will be checked out and prepared for the Artemis I uncrewed test flight. The aft exit cones sit at the bottommost part of the twin boosters. They are attached to the aft skirts, which contain the booster separation motors. The exit cones help to protect the aft skirts during launch.

SLS Booster Aft Exit Cone Arrival

A worker removes one of the securing straps from the first Northrop Grumman aft exit cone to arrive for the Space Launch System’s solid rocket boosters inside the Rotation, Processing and Surge Facility at NASA’s Kennedy Space Center in Florida on Nov. 4, 2019. The aft exit cone was shipped from Promontory, Utah. It will be checked out and prepared for the Artemis I uncrewed test flight. The aft exit cones sit at the bottommost part of the twin boosters. They are attached to the aft skirts, which contain the booster separation motors. The exit cones help to protect the aft skirts during launch.

SLS Booster Aft (Right) Exit Cone Arrival

Workers remove the securing straps from the second of two Northrop Grumman-manufactured aft exit cones to arrive for the Space Launch System’s solid rocket boosters inside the Rotation, Processing and Surge Facility at NASA’s Kennedy Space Center in Florida on Dec. 9, 2019. The right aft exit cone was shipped from Promontory, Utah. It will be checked out and prepared for the Artemis I uncrewed test flight. The aft exit cones sit at the bottommost part of the twin boosters. The cones help provide added thrust for the boosters, while protecting the aft skirts from the thermal environment during launch.

SLS Booster Aft (Right) Exit Cone Arrival

The shipping container has been removed from the second of two Northrop Grumman-manufactured aft exit cones to arrive for the Space Launch System’s solid rocket boosters inside the Rotation, Processing and Surge Facility at NASA’s Kennedy Space Center in Florida on Dec. 9, 2019. The right aft exit cone was shipped from Promontory, Utah. It will be checked out and prepared for the Artemis I uncrewed test flight. The aft exit cones sit at the bottommost part of the twin boosters. The cones help provide added thrust for the boosters, while protecting the aft skirts from the thermal environment during launch.

SLS Booster Aft (Right) Exit Cone Arrival

The Northrop Grumman-manufactured right aft exit cone, the second of two for the Space Launch System’s solid rocket boosters, is in view inside the Rotation, Processing and Surge Facility at NASA’s Kennedy Space Center in Florida on Dec. 9, 2019. The aft exit cone was shipped from Promontory, Utah. It will be checked out and prepared for the Artemis I uncrewed test flight. The aft exit cones sit at the bottommost part of the twin boosters. The cones help provide added thrust for the boosters, while protecting the aft skirts from the thermal environment during launch.

SLS Booster Aft (Right) Exit Cone Arrival

The Northrop Grumman-manufactured right aft exit cone, the second of two for the Space Launch System’s solid rocket boosters, is in view inside the Rotation, Processing and Surge Facility at NASA’s Kennedy Space Center in Florida on Dec. 9, 2019. Both aft exit cones were shipped from Promontory, Utah. They will be checked out and prepared for the Artemis I uncrewed test flight. The aft exit cones sit at the bottommost part of the twin boosters. The cones help provide added thrust for the boosters, while protecting the aft skirts from the thermal environment during launch.

SLS Booster Aft Exit Cone Arrival

Workers assist as a crane is used to lift up the shipping container cover from the first Northrop Grumman aft exit cone to arrive for the Space Launch System’s solid rocket boosters inside the Rotation, Processing and Surge Facility at NASA’s Kennedy Space Center in Florida on Nov. 4, 2019. The aft exit cone was shipped from Promontory, Utah. It will be checked out and prepared for the Artemis I uncrewed test flight. The aft exit cones sit at the bottommost part of the twin boosters. They are attached to the aft skirts, which contain the booster separation motors. The exit cones help to protect the aft skirts during launch.

SLS Booster Aft Exit Cone Arrival

Workers assist with removal of the shipping container cover from the first Northrop Grumman aft exit cone to arrive for the Space Launch System’s solid rocket boosters inside the Rotation, Processing and Surge Facility at NASA’s Kennedy Space Center in Florida on Nov. 4, 2019. The aft exit cone was shipped from Promontory, Utah. It will be checked out and prepared for the Artemis I uncrewed test flight. The aft exit cones sit at the bottommost part of the twin boosters. They are attached to the aft skirts, which contain the booster separation motors. The exit cones help to protect the aft skirts during launch.

SLS Booster Aft (Right) Exit Cone Arrival

The second of two Northrop Grumman-manufactured aft exit cones for the Space Launch System’s solid rocket boosters arrives by truck in its shipping container at the Rotation, Processing and Surge Facility at NASA's Kennedy Space Center in Florida on Dec. 9, 2019. The right aft exit cone was shipped from Promontory, Utah. It will be checked out and prepared for the Artemis I uncrewed test flight. The aft exit cones sit at the bottommost part of the twin boosters. The cones help provide added thrust for the boosters, while protecting the aft skirts from the thermal environment during launch.

SLS Booster Aft (Right) Exit Cone Arrival

A crane is used to lift the Northrop Grumman right-manufactured aft exit cone for the Space Launch System’s solid rocket boosters away from its shipping base for securing on a processing stand inside the Rotation, Processing and Surge Facility at NASA’s Kennedy Space Center in Florida on Dec. 9, 2019. The right and left aft exit cones were shipped from Promontory, Utah. They will be checked out and prepared for the Artemis I uncrewed test flight. The aft exit cones sit at the bottommost part of the twin boosters. The cones help provide added thrust for the boosters, while protecting the aft skirts from the thermal environment during launch.

SLS Booster Aft (Right) Exit Cone Arrival

The second of two Northrop Grumman-manufactured aft exit cones to arrive for the Space Launch System’s solid rocket boosters is moved by crane inside the Rotation, Processing and Surge Facility at NASA’s Kennedy Space Center in Florida on Dec. 9, 2019. Both aft exit cone were shipped from Promontory, Utah. The left aft exit cone is in view in the background. They will be checked out and prepared for the Artemis I uncrewed test flight. The aft exit cones sit at the bottommost part of the twin boosters. The cones help provide added thrust for the boosters, while protecting the aft skirts from the thermal environment during launch.

SLS Booster Aft (Right) Exit Cone Arrival

The shipping container has been removed from the second of two Northrop Grumman-manufactured aft exit cones to arrive for the Space Launch System’s solid rocket boosters inside the Rotation, Processing and Surge Facility at NASA’s Kennedy Space Center in Florida on Dec. 9, 2019. The right aft exit cone was shipped from Promontory, Utah. It will be checked out and prepared for the Artemis I uncrewed test flight. The aft exit cones sit at the bottommost part of the twin boosters. The cones help provide added thrust for the boosters, while protecting the aft skirts from the thermal environment during launch.

SLS Booster Aft Exit Cone Arrival

The first Northrop Grumman aft exit cone to arrive for the Space Launch System’s solid rocket boosters is moved by crane inside the Rotation, Processing and Surge Facility at NASA’s Kennedy Space Center in Florida on Nov. 4, 2019. The aft exit cone was shipped from Promontory, Utah. It will be checked out and prepared for the Artemis I uncrewed test flight. The aft exit cones sit at the bottommost part of the twin boosters. They are attached to the aft skirts, which contain the booster separation motors. The exit cones help to protect the aft skirts during launch.