S73-26912 (14 May 1973) --- The unmanned Skylab 1/Saturn V space vehicle is launched from Pad A, Launch Complex 39, Kennedy Space Center, Florida, at 12:00 noon (EDT), May 14, 1973, to place the Skylab space station cluster in Earth orbit. The Skylab 1 payload included four of the five major components of the space station Orbital Workshop, Apollo Telescope Mount, Multiple Docking Adapter, and Airlock Module. In addition to the payload, the Skylab 1/Saturn V second (S-11) stage. The fifth major component of the space station, the Command Service Module with the Skylab 2 crew aboard, was launched at a later date by a Saturn 1B from Pad B. Photo credit: NASA

The Titan/Centaur-6 launch vehicle was moved to Launch Complex 41 at Kennedy Space Center in Florida to complete checkout procedures in preparation for launch. The photo is dated January 1977. This launch vehicle carried Voyager 1 into space on September 5, 1977. https://photojournal.jpl.nasa.gov/catalog/PIA21739

S66-50152 (1966) --- A stage of the uprated Saturn 1 launch vehicle unloaded from NASA barge Promise after arrival at Cape Kennedy. Launch vehicle for Apollo/Saturn 204 mission.

The DARPA/U.S. Air Force X-45A Unmanned Combat Air Vehicle (UCAV) system demonstration program completed the first phase of demonstrations, known as Block I, on Feb. 28, 2003. The final Block I activities included two flights at Dryden, during which safe operation of the weapons bay door was verified at 35,000 feet and speeds of Mach 0.75, the maximum planned altitude and speed for the two X-45A demonstrator vehicles.

The DARPA/U.S. Air Force X-45A Unmanned Combat Air Vehicle (UCAV) system demonstration program completed the first phase of demonstrations, known as Block I, on Feb. 28, 2003. The final Block I activities included two flights at Dryden, during which safe operation of the weapons bay door was verified at 35,000 feet and speeds of Mach 0.75, the maximum planned altitude and speed for the two X-45A demonstrator vehicles.

The DARPA/U.S. Air Force X-45A Unmanned Combat Air Vehicle (UCAV) system demonstration program completed the first phase of demonstrations, known as Block I, on Feb. 28, 2003. The final Block I activities included two flights at Dryden, during which safe operation of the weapons bay door was verified at 35,000 feet and speeds of Mach 0.75, the maximum planned altitude and speed for the two X-45A demonstrator vehicles.

The DARPA/U.S. Air Force X-45A Unmanned Combat Air Vehicle (UCAV) system demonstration program completed the first phase of demonstrations, known as Block I, on Feb. 28, 2003. The final Block I activities included two flights at Dryden, during which safe operation of the weapons bay door was verified at 35,000 feet and speeds of Mach 0.75, the maximum planned altitude and speed for the two X-45A demonstrator vehicles.

The DARPA/U.S. Air Force X-45A Unmanned Combat Air Vehicle (UCAV) system demonstration program completed the first phase of demonstrations, known as Block I, on Feb. 28, 2003. The final Block I activities included two flights at Dryden, during which safe operation of the weapons bay door was verified at 35,000 feet and speeds of Mach 0.75, the maximum planned altitude and speed for the two X-45A demonstrator vehicles.

S64-21560 (8 April 1964) --- Gemini/Titan-II launch vehicle #1 liftoff at Cape Kennedy, Florida.

S73-26913 (14 May 1973) --- The unmanned Skylab 1/Saturn V space vehicle is launched from Pad A, Launch Complex 39, Kennedy Space Center, Florida, at 12:00 noon (EDT), May 14, 1973, to place the Skylab space station cluster in Earth orbit. The Skylab 1 payload included four of the five major components of the space station Orbital Workshop, Apollo Telescope Mount, Multiple Docking Adapter, and Airlock Module. In addition to the payload, the Skylab 1/Saturn V second (S-11) stage. The fifth major component of the space station, the Command Service Module with the Skylab 2 crew aboard, was launched at a later date by a Saturn 1B from Pad B. Photo credit: NASA

S64-22412 (8 April 1964) --- Aerial view of the Gemini/Titan-II launch vehicle #1 liftoff at Cape Kennedy, Florida.

A new service platform for NASA's Space Launch System booster engines is being prepared for the move into the Vehicle Assembly Building (VAB) at the agency's Kennedy Space Center in Florida. The platform was transported from fabricator Met-Con Inc. in Cocoa, Florida. It will be stored in the VAB, and used for processing and checkout of the engines for the rocket's twin five-segment solid rocket boosters for Exploration Mission-1. EM-1 will launch an uncrewed Orion spacecraft to a stable orbit beyond the Moon and bring it back to Earth for a splashdown in the Pacific Ocean.

A new service platform for NASA's Space Launch System booster engines, secured on a flatbed truck, is on its way to the agency's Kennedy Space Center in Florida. It was transported from fabricator Met-Con Inc. in Cocoa, Florida. The platform will be delivered to the Vehicle Assembly Building, where it will be stored and used for processing and checkout of the engines for the rocket's twin five-segment solid rocket boosters for Exploration Mission-1 (EM-1). During EM-1, an uncrewed Orion spacecraft will launch on the SLS to a stable orbit beyond the Moon and return to Earth for a splashdown in the Pacific Ocean.

A new service platform for NASA's Space Launch System booster engines, secured on a flatbed truck, is on its way to the Vehicle Assembly Building (VAB), in view in the distance, at the agency's Kennedy Space Center in Florida. It was transported from fabricator Met-Con Inc. in Cocoa, Florida. The platform will be delivered to the VAB, where it will be stored and used for processing and checkout of the engines for the rocket's twin five-segment solid rocket boosters for Exploration Mission-1 (EM-1). During EM-1, an uncrewed Orion spacecraft will launch on the SLS to a stable orbit beyond the Moon and return to Earth for a splashdown in the Pacific Ocean.

A new service platform for NASA's Space Launch System booster engines, secured on a flatbed truck, is on its way to the agency's Kennedy Space Center in Florida. It was transported from fabricator Met-Con Inc. in Cocoa, Florida. The platform will be delivered to the Vehicle Assembly Building, where it will be stored and used for processing and checkout of the engines for the rocket's twin five-segment solid rocket boosters for Exploration Mission-1 (EM-1). During EM-1, an uncrewed Orion spacecraft will launch on the SLS to a stable orbit beyond the Moon and return to Earth for a splashdown in the Pacific Ocean.

A new service platform for NASA's Space Launch System booster engines, secured on a flatbed truck, has arrived at the Vehicle Assembly Building (VAB) at the agency's Kennedy Space Center in Florida. It was transported from fabricator Met-Con Inc. in Cocoa, Florida. The platform will be stored in the VAB and used for processing and checkout of the engines for the rocket's twin five-segment solid rocket boosters for Exploration Mission-1 (EM-1). During EM-1, an uncrewed Orion spacecraft will launch on the SLS to a stable orbit beyond the Moon and return to Earth for a splashdown in the Pacific Ocean.

S73-25140 (16 April 1973) --- A ground-level view of Pad A, Launch Complex 39, Kennedy Space Center, Florida, showing the 341-feet tall Skylab 1/Saturn V space vehicle on the pad soon after being rolled out from the Vehicle Assembly Building (VAB). The vehicle is composed of the Saturn V first (S-1C) stage, the Apollo Telescope Mount (ATM), the Multiple Docking Adapter (MDA), the Airlock Module (AM), and the Orbital Workshop (OWS). Photo credit: NASA

A new service platform for NASA's Space Launch System booster engines has been offloaded from a flatbed truck and is being prepared for the move into the Vehicle Assembly Building (VAB) at the agency's Kennedy Space Center in Florida. The platform was transported from fabricator Met-Con Inc. in Cocoa, Florida. It will be stored in the VAB, and used for processing and checkout of the engines for the rocket's twin five-segment solid rocket boosters for Exploration Mission-1. EM-1 will launch an uncrewed Orion spacecraft to a stable orbit beyond the Moon and bring it back to Earth for a splashdown in the Pacific Ocean.

A new service platform for NASA's Space Launch System booster engines has been offloaded from a flatbed truck and is being prepared for the move into the Vehicle Assembly Building (VAB) at the agency's Kennedy Space Center in Florida. The platform was transported from fabricator Met-Con Inc. in Cocoa, Florida. It will be stored in the VAB, and used for processing and checkout of the engines for the rocket's twin five-segment solid rocket boosters for Exploration Mission-1. EM-1 will launch an uncrewed Orion spacecraft to a stable orbit beyond the Moon and bring it back to Earth for a splashdown in the Pacific Ocean.

A brilliant sun shines through the doors of High Bay 3 in the Vehicle Assembly Building (VAB) at NASA's Kennedy Space Center in Florida. In view are ten levels of new work platforms that were installed in the high bay. They will surround and provide access for service and processing of NASA's Space Launch System rocket and Orion spacecraft. Exploration Ground Systems oversaw the upgrades and installation of the new work platforms to support the launch of the SLS and Orion on Exploration Mission-1 (EM-1) and deep space missions.

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.

This photo shows the Paresev (Paraglider Research Vehicle) space frame receiving a new wing. Frank Fedor and a technician helper are attaching a half-scale version of an inflatable wing in a hangar at NASA Flight Research Center at Edwards, California. The Paresev in this configuration was called the 1-C and was expected to closely approximate the aerodynamic characteristics that would be encountered with the Gemini space capsule with a parawing extended. The whole wing was not inflatable; the three chambers that acted as spars and supported the wing inflated.

LLRV flight #1-16-61F with Bell 47 Helicopter providing chase support. The use of chase planes was a critical part of flight research well before the establishment of what was then called the NACA Muroc Flight Test Unit in September 1947 (now the NASA Dryden Flight Research Center). They act as a second set of eyes for the research pilot, warning him of any problems. When test flights of the LLRV began in October 1964, chase support for the vehicle was supplied by a Bell 47 helicopter. It could hover close by, providing information such as altitude and descent rate. LLRV test operations were phased out in late 1966 and early 1967. When Apollo planning was underway in 1960, NASA was looking for a simulator to profile the descent to the Moon's surface. Three concepts surfaced: an electronic simulator, a tethered device, and the ambitious Dryden contribution, a free-flying vehicle. All three became serious projects, but eventually the NASA Flight Research Center’s (FRC) Lunar Landing Research Vehicle (LLRV) became the most significant one. After conceptual planning and meetings with engineers from Bell Aerosystems Company, Buffalo, N.Y., NASA FRC issued a $3.6 million production contract awarded in 1963, for delivery of the first of two vehicles for flight studies. Built of tubular aluminum alloy like a giant four-legged bedstead, the vehicle was to simulate a lunar landing profile from around 1500 feet to the Moon’s surface. The LLRV had a turbofan engine mounted vertically in a gimbal, with 4200 pounds of thrust. The engine, lifted the vehicle up to the test altitude and was then throttled back to support five-sixths of the vehicle's weight, thus simulating the reduced gravity of the Moon. Two lift rockets with thrust that could be varied from 100 to 500 pounds handled the LLRV's rate of descent and horizontal translations. Sixteen smaller rockets, mounted in pairs, gave the pilot control in pitch, yaw, and roll. The pilot’s platform extended forward between t

NASA Mars Pathfinder was launched on a Delta Launch Vehicle at 1:56 am on 4 December 1996 from Cape Canaveral Spaceflight Center. http://photojournal.jpl.nasa.gov/catalog/PIA04754

An early morning view of the iconic Vehicle Assembly Building, at right, and mobile launcher at NASA's Kennedy Space Center in Florida, on June 21, from the Saturn V center at nearby Kennedy Space Center Visitor Complex. Exploration Ground Systems is preparing both to support processing and launch of the agency's Space Launch System rocket and Orion spacecraft on Exploration Mission-1 and deep space missions.

A view looking up at one side of the 10 levels of work platforms in High Bay 3 inside the Vehicle Assembly Building (VAB) at NASA's Kennedy Space Center in Florida. The work platforms will surround and provide access for service and processing of NASA's Space Launch System rocket and Orion spacecraft. Exploration Ground Systems oversaw the upgrades and installation of the new work platforms to support the launch of the SLS and Orion on Exploration Mission-1 and deep space missions.

A view looking up at the 10 levels of work platforms in High Bay 3 inside the Vehicle Assembly Building (VAB) at NASA's Kennedy Space Center in Florida. The work platforms will surround and provide access for service and processing of NASA's Space Launch System rocket and Orion spacecraft. Exploration Ground Systems oversaw the upgrades and installation of the new work platforms to support the launch of the SLS and Orion on Exploration Mission-1 and deep space missions.

A view looking at High Bay 3 in the Vehicle Assembly Building (VAB) at NASA's Kennedy Space Center in Florida. Ten levels of new work platforms have been installed in High Bay 3. They will surround and provide access for service and processing of NASA's Space Launch System rocket and Orion spacecraft. Exploration Ground Systems oversaw the upgrades and installation of the new work platforms to support the launch of the SLS and Orion on Exploration Mission-1 and deep space missions.

With their lights reflected in the water, a nighttime view of the iconic Vehicle Assembly Building, at right, and mobile launcher at NASA's Kennedy Space Center in Florida, on June 21, from the Saturn V center at nearby Kennedy Space Center Visitor Complex. Exploration Ground Systems is preparing both to support processing and launch of the agency's Space Launch System rocket and Orion spacecraft on Exploration Mission-1 and deep space missions.

A view looking up at the 10 levels of work platforms in High Bay 3 inside the Vehicle Assembly Building (VAB) at NASA's Kennedy Space Center in Florida. The work platforms will surround and provide access for service and processing of NASA's Space Launch System rocket and Orion spacecraft. Exploration Ground Systems oversaw the upgrades and installation of the new work platforms to support the launch of the SLS and Orion on Exploration Mission-1 and deep space missions.

A view looking up at one side of the 10 levels of work platforms in High Bay 3 inside the Vehicle Assembly Building (VAB) at NASA's Kennedy Space Center in Florida. The work platforms will surround and provide access for service and processing of NASA's Space Launch System rocket and Orion spacecraft. Exploration Ground Systems oversaw the upgrades and installation of the new work platforms to support the launch of the SLS and Orion on Exploration Mission-1 and deep space missions.

ISS013-E-29003 (1 June 2006) --- The Progress 20 supply vehicle, docked to the Pirs Docking Compartment of the International Space Station, is featured in this image photographed by an Expedition 13 crewmember during today’s spacewalk. Progress 20 will remain docked until mid-June. It will be used to stow trash, and its supply of oxygen will help replenish the station’s atmosphere. A blue and white Earth and the blackness of space provided the backdrop for this image.

The first X-45A Unmanned Combat Air Vehicle (UCAV) technology demonstrator completed its sixth flight on Dec. 19, 2002, raising its landing gear in flight for the first time. The X-45A flew for 40 minutes and reached an airspeed of 195 knots and an altitude of 7,500 feet. Dryden is supporting the DARPA/Boeing team in the design, development, integration, and demonstration of the critical technologies, processes, and system attributes leading to an operational UCAV system. Dryden support of the X-45A demonstrator system includes analysis, component development, simulations, ground and flight tests.

Technicians work on the harness assembly for the Exploration Flight Test-1 (EFT-1) Orion in the Operations and Checkout (O&C) Building at NASA’s Kennedy Space Center on Jan. 1, 2012. Part of Batch image transfer from Flickr.

Engineers secure the cover over the Voyager 1 Golden Record in this archival image from 1977. https://photojournal.jpl.nasa.gov/catalog/PIA21740

Technicians work on the harness assembly for the Exploration Flight Test-1 (EFT-1) Orion in the Operations and Checkout (O&C) Building at NASA’s Kennedy Space Center on Jan. 1, 2012. Part of Batch image transfer from Flickr.

Technicians work on the harness assembly for the Exploration Flight Test-1 (EFT-1) Orion in the Operations and Checkout (O&C) Building at NASA’s Kennedy Space Center on Jan. 1, 2012. Part of Batch image transfer from Flickr.

Technicians work on the harness assembly for the Exploration Flight Test-1 (EFT-1) Orion in the Operations and Checkout (O&C) Building at NASA’s Kennedy Space Center on Nov. 16, 2012. Part of Batch image transfer from Flickr.

Apollo 11 astronaut Buzz Aldrin and tour guide Mary Ann Harness check out models of the Ares 1 and Ares 5 space vehicles during Aldrin's tour of NASA Dryden.

In this view looking down from high above on the mobile launcher in High Bay 3 of the Vehicle Assembly Building at NASA's Kennedy Space Center in Florida, on Sept. 11, 2018, the mobile launcher is in the high bay to begin several months of testing. Several of the new work platforms that will surround the mobile launcher during stacking and processing operations are in view. The 380-foot-tall structure is equipped with the crew access arm and several umbilicals that will provide power, environmental control, pneumatics, communication and electrical connections to the agency's Space Launch System and Orion spacecraft. Exploration Ground Systems is preparing the ground systems necessary to launch SLS and Orion on Exploration Mission-1, missions to the Moon and on to Mars.

NASA's mobile launcher is secured inside High Bay 3 at the Vehicle Assembly Building (VAB) on Sept. 11, 2018, at NASA's Kennedy Space Center in Florida. In view are several levels of the new work platforms. The crew access arm, at the top, is being extended. The mobile launcher will spend seven months in the VAB undergoing testing. The 380-foot-tall structure is equipped with the crew access arm and several umbilicals that will provide power, environmental control, pneumatics, communication and electrical connections to the agency's Space Launch System and Orion spacecraft. Exploration Ground Systems is preparing the ground systems necessary to launch SLS and Orion on Exploration Mission-1, missions to the Moon and on to Mars.

NASA's mobile launcher is in view inside High Bay 3 of the Vehicle Assembly Building at the agency's Kennedy Space Center in Florida, on Sept. 11, 2018. Several of the new work platforms that will surround the mobile launcher during stacking and processing operations are in view. The mobile launcher will spend seven months in the VAB undergoing testing. The 380-foot-tall structure is equipped with the crew access arm and several umbilicals that will provide power, environmental control, pneumatics, communication and electrical connections to the agency's Space Launch System and Orion spacecraft. Exploration Ground Systems is preparing the ground systems necessary to launch SLS and Orion on Exploration Mission-1, missions to the Moon and on to Mars.

A brilliant blue sky forms the backdrop for a fish-eye panoramic view of the south side of the iconic Vehicle Assembly Building (VAB) and Launch Control Center at NASA's Kennedy Space Center in Florida. Ten levels of new work platforms have been installed in VAB High Bay 3. They will surround and provide access for service and processing of NASA's Space Launch System (SLS) rocket and Orion spacecraft. Exploration Ground Systems oversaw the upgrades and installation of the new work platforms to support the launch of the SLS and Orion on Exploration Mission-1 (EM-1) and deep space missions. At left is the Launch Control Center, where Firing Room 1 has been upgraded to support EM-1.

A sunrise panoramic view of the iconic Vehicle Assembly Building (VAB) and surrounding waterways at NASA's Kennedy Space Center in Florida. Ten levels of new work platforms have been installed in VAB High Bay 3. They will surround and provide access for service and processing of NASA's Space Launch System (SLS) rocket and Orion spacecraft. Exploration Ground Systems oversaw the upgrades and installation of the new work platforms to support the launch of the SLS and Orion on Exploration Mission-1 and deep space missions.

A sunrise panoramic view of the iconic Vehicle Assembly Building (VAB) and Launch Control Center at NASA's Kennedy Space Center in Florida. Ten levels of work platforms have been installed in High Bay 3 of the VAB. They will surround and provide access for service and processing of NASA's Space Launch System (SLS) rocket and Orion spacecraft. Exploration Ground Systems oversaw the upgrades and installation of the new work platforms to support the launch of the SLS and Orion on Exploration Mission-1 and deep space missions.

A dragonfly perches on a tree branch with the iconic Vehicle Assembly Building (VAB) in view in the background at NASA's Kennedy Space Center in Florida. Ten levels of new work platforms have been installed in VAB High Bay 3. They will surround and provide access for service and processing of NASA's Space Launch System (SLS) rocket and Orion spacecraft. Exploration Ground Systems oversaw the upgrades and installation of the new work platforms to support the launch of the SLS and Orion on Exploration Mission-1 and deep space missions.

A sunrise time-lapse panoramic view of the iconic Vehicle Assembly Building (VAB) and Launch Control Center at NASA's Kennedy Space Center in Florida. Ten levels of work platforms have been installed in High Bay 3 of the VAB. They will surround and provide access for service and processing of NASA's Space Launch System (SLS) rocket and Orion spacecraft. Exploration Ground Systems oversaw the upgrades and installation of the new work platforms to support the launch of the SLS and Orion on Exploration Mission-1 and deep space missions.

A brilliant blue sky forms the background for a panoramic view of the iconic Vehicle Assembly Building (VAB) and Launch Control Center at NASA's Kennedy Space Center in Florida. Ten levels of work platforms have been installed in High Bay 3 of the VAB. They will surround and provide access for service and processing of NASA's Space Launch System (SLS) rocket and Orion spacecraft. Exploration Ground Systems oversaw the upgrades and installation of the new work platforms to support the launch of the SLS and Orion on Exploration Mission-1 and deep space missions.

The iconic Vehicle Assembly Building (VAB) casts a reflection in a surrounding waterway at NASA's Kennedy Space Center in Florida. In view are the south and east sides of the building. Ten levels of new work platforms have been installed in VAB High Bay 3. They will surround and provide access for service and processing of NASA's Space Launch System (SLS) rocket and Orion spacecraft. Exploration Ground Systems oversaw the upgrades and installation of the new work platforms to support the launch of the SLS and Orion on Exploration Mission-1 and deep space missions.

A sunrise creative view of the iconic Vehicle Assembly Building (VAB) and Launch Control Center at NASA's Kennedy Space Center in Florida. Ten levels of work platforms have been installed in High Bay 3 of the VAB. They will surround and provide access for service and processing of NASA's Space Launch System (SLS) rocket and Orion spacecraft. Exploration Ground Systems oversaw the upgrades and installation of the new work platforms to support the launch of the SLS and Orion on Exploration Mission-1 and deep space missions.

A sunrise panoramic view of the iconic Vehicle Assembly Building (VAB) and Launch Control Center at NASA's Kennedy Space Center in Florida. Ten levels of work platforms have been installed in High Bay 3 of the VAB. They will surround and provide access for service and processing of NASA's Space Launch System (SLS) rocket and Orion spacecraft. Exploration Ground Systems oversaw the upgrades and installation of the new work platforms to support the launch of the SLS and Orion on Exploration Mission-1 and deep space missions.

A sunrise panoramic view of the iconic Vehicle Assembly Building (VAB) at NASA's Kennedy Space Center in Florida. Ten levels of work platforms have been installed in High Bay 3 of the VAB. They will surround and provide access for service and processing of NASA's Space Launch System (SLS) rocket and Orion spacecraft. Exploration Ground Systems oversaw the upgrades and installation of the new work platforms to support the launch of the SLS and Orion on Exploration Mission-1 and deep space missions.

Preparations are underway to move NASA's mobile launcher, atop crawler-transporter 2, into High Bay 3 at the Vehicle Assembly Building (VAB) on Sept. 8, 2018, at NASA's Kennedy Space Center in Florida. The mobile launcher departed Launch Pad 39B after several days of testing with the pad. This is the first time that the modified mobile launcher made the trip to the pad and the VAB. The mobile launcher will spend seven months in the VAB undergoing testing. The 380-foot-tall structure is equipped with the crew access arm and several umbilicals that will provide power, environmental control, pneumatics, communication and electrical connections to the agency's Space Launch System and Orion spacecraft. Exploration Ground Systems is preparing the ground systems necessary to launch SLS and Orion on Exploration Mission-1, missions to the Moon and on to Mars.

The engine vertical installer for NASA’s Space Launch System (SLS) arrives inside the Vehicle Assembly at NASA’s Kennedy Space Center in Florida on April 25, 2019. The engine installer arrived from the manufacturer, Precision Fabrication and Cleaning in Canaveral Groves, Florida. The new ground support equipment will be ready for preflight processing in the event one of the four RS-25 engines on the core stage of the SLS rocket needs to be replaced. During launch of the SLS and Orion spacecraft, the four core stage engines will provide the thrust needed to lift the rocket and Orion spacecraft off Launch Pad 39B at Kennedy for Exploration Mission-1. The uncrewed Orion will travel on a three-week test mission thousands of miles beyond the Moon and back to Earth for a splashdown in the Pacific Ocean.

The engine vertical installer for NASA’s Space Launch System (SLS) arrives inside the Vehicle Assembly at NASA’s Kennedy Space Center in Florida on April 25, 2019. The engine installer arrived from the manufacturer, Precision Fabrication and Cleaning in Canaveral Groves, Florida. The new ground support equipment will be ready for preflight processing in the event one of the four RS-25 engines on the core stage of the SLS rocket needs to be replaced. During launch of the SLS and Orion spacecraft, the four core stage engines will provide the thrust needed to lift the rocket and Orion spacecraft off Launch Pad 39B at Kennedy for Exploration Mission-1. The uncrewed Orion will travel on a three-week test mission thousands of miles beyond the Moon and back to Earth for a splashdown in the Pacific Ocean.

The engine vertical installer for NASA’s Space Launch System (SLS) is inside the Vehicle Assembly at NASA’s Kennedy Space Center in Florida on April 25, 2019. The engine installer is being lifted up by crane for transfer to High Bay 3. The engine installer arrived from the manufacturer, Precision Fabrication and Cleaning in Canaveral Groves, Florida. The new ground support equipment will be ready for preflight processing in the event one of the four RS-25 engines on the core stage of the SLS rocket needs to be replaced. During launch of the SLS and Orion spacecraft, the four core stage engines will provide the thrust needed to lift the rocket and Orion spacecraft off Launch Pad 39B at Kennedy for Exploration Mission-1. The uncrewed Orion will travel on a three-week test mission thousands of miles beyond the Moon and back to Earth for a splashdown in the Pacific Ocean.

NASA's mobile launcher, atop crawler-transporter 2, is at the entrance to High Bay 3 at the Vehicle Assembly Building (VAB) at sunrise on Sept. 8, 2018, at NASA's Kennedy Space Center in Florida. The mobile launcher departed Launch Pad 39B after several days of testing with the pad. This is the first time that the modified mobile launcher made the trip to the pad and the VAB. The mobile launcher will spend seven months in the VAB undergoing testing. The 380-foot-tall structure is equipped with the crew access arm and several umbilicals that will provide power, environmental control, pneumatics, communication and electrical connections to the agency's Space Launch System and Orion spacecraft. Exploration Ground Systems is preparing the ground systems necessary to launch SLS and Orion on Exploration Mission-1, missions to the Moon and on to Mars.

As a brilliant sun shines through, NASA's mobile launcher, atop crawler-transporter 2, begins the move into High Bay 3 at the Vehicle Assembly Building (VAB) on Sept. 8, 2018, at NASA's Kennedy Space Center in Florida. The mobile launcher departed Launch Pad 39B after several days of testing with the pad. This is the first time that the modified mobile launcher made the trip to the pad and the VAB. The mobile launcher will spend seven months in the VAB undergoing testing. The 380-foot-tall structure is equipped with the crew access arm and several umbilicals that will provide power, environmental control, pneumatics, communication and electrical connections to the agency's Space Launch System and Orion spacecraft. Exploration Ground Systems is preparing the ground systems necessary to launch SLS and Orion on Exploration Mission-1, missions to the Moon and on to Mars.

The engine vertical installer for NASA’s Space Launch System (SLS) is being lifted by crane in the Vehicle Assembly Building at NASA’s Kennedy Space Center in Florida on April 25, 2019. The engine installer arrived from the manufacturer, Precision Fabrication and Cleaning in Canaveral Groves, Florida. The new ground support equipment will be transferred into High Bay 3 where it will be ready for preflight processing in the event one of the four RS-25 engines on the core stage of the SLS rocket needs to be replaced. During launch of the SLS and Orion spacecraft, the four core stage engines will provide the thrust needed to lift the rocket and Orion spacecraft off Launch Pad 39B at Kennedy for Exploration Mission-1. The uncrewed Orion will travel on a three-week test mission thousands of miles beyond the Moon and back to Earth for a splashdown in the Pacific Ocean.

NASA's mobile launcher, atop crawler-transporter 2, begins the move into High Bay 3 at the Vehicle Assembly Building (VAB) on Sept. 8, 2018, at NASA's Kennedy Space Center in Florida. The mobile launcher departed Launch Pad 39B after several days of testing with the pad. This is the first time that the modified mobile launcher made the trip to the pad and the VAB. The mobile launcher will spend seven months in the VAB undergoing testing. The 380-foot-tall structure is equipped with the crew access arm and several umbilicals that will provide power, environmental control, pneumatics, communication and electrical connections to the agency's Space Launch System and Orion spacecraft. Exploration Ground Systems is preparing the ground systems necessary to launch SLS and Orion on Exploration Mission-1, missions to the Moon and on to Mars.

NASA's mobile launcher, atop crawler-transporter 2, is at the entrance to High Bay 3 at the Vehicle Assembly Building (VAB) just before sunrise on Sept. 8, 2018, at NASA's Kennedy Space Center in Florida. The mobile launcher departed Launch Pad 39B after several days of testing with the pad. This is the first time that the modified mobile launcher made the trip to the pad and the VAB. The mobile launcher will spend seven months in the VAB undergoing testing. The 380-foot-tall structure is equipped with the crew access arm and several umbilicals that will provide power, environmental control, pneumatics, communication and electrical connections to the agency's Space Launch System and Orion spacecraft. Exploration Ground Systems is preparing the ground systems necessary to launch SLS and Orion on Exploration Mission-1, missions to the Moon and on to Mars.

Technicians remove special planks covering tracks as NASA's mobile launcher, atop crawler-transporter 2, moves into High Bay 3 at the Vehicle Assembly Building (VAB) on Sept. 8, 2018, at NASA's Kennedy Space Center in Florida. The mobile launcher departed Launch Pad 39B after several days of testing with the pad. This is the first time that the modified mobile launcher made the trip to the pad and the VAB. The mobile launcher will spend seven months in the VAB undergoing testing. The 380-foot-tall structure is equipped with the crew access arm and several umbilicals that will provide power, environmental control, pneumatics, communication and electrical connections to the agency's Space Launch System and Orion spacecraft. Exploration Ground Systems is preparing the ground systems necessary to launch SLS and Orion on Exploration Mission-1, missions to the Moon and on to Mars.

The engine vertical installer for NASA’s Space Launch System (SLS) is inside the Vehicle Assembly at NASA’s Kennedy Space Center in Florida on April 25, 2019. The engine installer is being lifted up by crane for transfer to High Bay 3. The engine installer arrived from the manufacturer, Precision Fabrication and Cleaning in Canaveral Groves, Florida. The new ground support equipment will be ready for preflight processing in the event one of the four RS-25 engines on the core stage of the SLS rocket needs to be replaced. During launch of the SLS and Orion spacecraft, the four core stage engines will provide the thrust needed to lift the rocket and Orion spacecraft off Launch Pad 39B at Kennedy for Exploration Mission-1. The uncrewed Orion will travel on a three-week test mission thousands of miles beyond the Moon and back to Earth for a splashdown in the Pacific Ocean.

NASA's mobile launcher is inside High Bay 3 at the Vehicle Assembly Building (VAB) on Sept. 11, 2018, at NASA's Kennedy Space Center in Florida. Several levels of the new work platforms have been extended around the mobile launcher tower. The American flag is in view on the base of the structure. The mobile launcher will spend seven months in the VAB undergoing testing. The 380-foot-tall structure is equipped with the crew access arm and several umbilicals that will provide power, environmental control, pneumatics, communication and electrical connections to the agency's Space Launch System and Orion spacecraft. Exploration Ground Systems is preparing the ground systems necessary to launch SLS and Orion on Exploration Mission-1, missions to the Moon and on to Mars.

The engine vertical installer for NASA’s Space Launch System (SLS) arrives at the Vehicle Assembly at NASA’s Kennedy Space Center in Florida on April 25, 2019. The engine installer arrived from the manufacturer, Precision Fabrication and Cleaning in Canaveral Groves, Florida. The new ground support equipment will be ready for preflight processing in the event one of the four RS-25 engines on the core stage of the SLS rocket needs to be replaced. During launch of the SLS and Orion spacecraft, the four core stage engines will provide the thrust needed to lift the rocket and Orion spacecraft off Launch Pad 39B at Kennedy for Exploration Mission-1. The uncrewed Orion will travel on a three-week test mission thousands of miles beyond the Moon and back to Earth for a splashdown in the Pacific Ocean.

NASA's mobile launcher is inside High Bay 3 at the Vehicle Assembly Building (VAB) on Sept. 11, 2018, at NASA's Kennedy Space Center in Florida. In view are several levels of the new work platforms that will surround the mobile launcher during stacking and processing for launch. In view at the top is the crew access arm, which is being extended. The mobile launcher will spend seven months in the VAB undergoing testing. The 380-foot-tall structure is equipped with the crew access arm and several umbilicals that will provide power, environmental control, pneumatics, communication and electrical connections to the agency's Space Launch System and Orion spacecraft. Exploration Ground Systems is preparing the ground systems necessary to launch SLS and Orion on Exploration Mission-1, missions to the Moon and on to Mars.

Preparations are underway to move NASA's mobile launcher, atop crawler-transporter 2, into High Bay 3 at the Vehicle Assembly Building (VAB) on Sept. 8, 2018, at NASA's Kennedy Space Center in Florida. The mobile launcher departed Launch Pad 39B after several days of testing with the pad. This is the first time that the modified mobile launcher made the trip to the pad and the VAB. The mobile launcher will spend seven months in the VAB undergoing testing. The 380-foot-tall structure is equipped with the crew access arm and several umbilicals that will provide power, environmental control, pneumatics, communication and electrical connections to the agency's Space Launch System and Orion spacecraft. Exploration Ground Systems is preparing the ground systems necessary to launch SLS and Orion on Exploration Mission-1, missions to the Moon and on to Mars.

The engine vertical installer for NASA’s Space Launch System (SLS) arrives inside the Vehicle Assembly at NASA’s Kennedy Space Center in Florida on April 25, 2019. The engine installer arrived from the manufacturer, Precision Fabrication and Cleaning in Canaveral Groves, Florida. The new ground support equipment will be ready for preflight processing in the event one of the four RS-25 engines on the core stage of the SLS rocket needs to be replaced. During launch of the SLS and Orion spacecraft, the four core stage engines will provide the thrust needed to lift the rocket and Orion spacecraft off Launch Pad 39B at Kennedy for Exploration Mission-1. The uncrewed Orion will travel on a three-week test mission thousands of miles beyond the Moon and back to Earth for a splashdown in the Pacific Ocean.

Technicians lay wooden planks down in the tracks to the entrance to High Bay 3 in the Vehicle Assembly Building (VAB), as mobile launcher, atop crawler-transporter 2, moves into the VAB on Sept. 8, 2018, at NASA's Kennedy Space Center in Florida. The mobile launcher departed Launch Pad 39B after several days of testing with the pad. This is the first time that the modified mobile launcher made the trip to the pad and the VAB. The mobile launcher will spend seven months in the VAB undergoing testing. The 380-foot-tall structure is equipped with the crew access arm and several umbilicals that will provide power, environmental control, pneumatics, communication and electrical connections to the agency's Space Launch System and Orion spacecraft. Exploration Ground Systems is preparing the ground systems necessary to launch SLS and Orion on Exploration Mission-1, missions to the Moon and on to Mars.

NASA's mobile launcher is inside High Bay 3 at the Vehicle Assembly Building (VAB) on Sept. 11, 2018, at NASA's Kennedy Space Center in Florida. The mobile launcher departed Launch Pad 39B after several days of testing with the pad. This is the first time that the modified mobile launcher made the trip to the pad and the VAB. The mobile launcher will spend seven months in the VAB undergoing testing. The 380-foot-tall structure is equipped with the crew access arm and several umbilicals that will provide power, environmental control, pneumatics, communication and electrical connections to the agency's Space Launch System and Orion spacecraft. Exploration Ground Systems is preparing the ground systems necessary to launch SLS and Orion on Exploration Mission-1, missions to the Moon and on to Mars.

The engine vertical installer for NASA’s Space Launch System (SLS) arrives by large transport truck at the Vehicle Assembly Building at NASA’s Kennedy Space Center in Florida on April 25, 2019. The engine installer arrived from the manufacturer, Precision Fabrication and Cleaning in Canaveral Groves, Florida. The new ground support equipment will be ready for preflight assembly in the event one of the four RS-25 engines on the core stage of the SLS rocket needs to be replaced. During launch of the SLS and Orion spacecraft, the four core stage engines will provide the thrust needed to lift the rocket and Orion spacecraft off Launch Pad 39B at Kennedy for Exploration Mission-1. The uncrewed Orion will travel on a three-week test mission thousands of miles beyond the Moon and back to Earth for a splashdown in the Pacific Ocean.

The giant cleats of crawler-transporter 2 are in view as a technician monitors the progress of the move of NASA's mobile launcher, atop the crawler, into High Bay 3 at the Vehicle Assembly Building (VAB) on Sept. 8, 2018, at NASA's Kennedy Space Center in Florida. The mobile launcher departed Launch Pad 39B after several days of testing with the pad. This is the first time that the modified mobile launcher made the trip to the pad and the VAB. The mobile launcher will spend seven months in the VAB undergoing testing. The 380-foot-tall structure is equipped with the crew access arm and several umbilicals that will provide power, environmental control, pneumatics, communication and electrical connections to the agency's Space Launch System and Orion spacecraft. Exploration Ground Systems is preparing the ground systems necessary to launch SLS and Orion on Exploration Mission-1, missions to the Moon and on to Mars.

The engine vertical installer for NASA’s Space Launch System (SLS) is inside the Vehicle Assembly at NASA’s Kennedy Space Center in Florida on April 25, 2019. The engine installer will be lifted up by crane for transfer to High Bay 3. The engine installer arrived from the manufacturer, Precision Fabrication and Cleaning in Canaveral Groves, Florida. The new ground support equipment will be ready for preflight processing in the event one of the four RS-25 engines on the core stage of the SLS rocket needs to be replaced. During launch of the SLS and Orion spacecraft, the four core stage engines will provide the thrust needed to lift the rocket and Orion spacecraft off Launch Pad 39B at Kennedy for Exploration Mission-1. The uncrewed Orion will travel on a three-week test mission thousands of miles beyond the Moon and back to Earth for a splashdown in the Pacific Ocean.

NASA's mobile launcher, atop crawler-transporter 2, moves into High Bay 3 at the Vehicle Assembly Building (VAB) on Sept. 8, 2018, at NASA's Kennedy Space Center in Florida. The mobile launcher departed Launch Pad 39B after several days of testing with the pad. This is the first time that the modified mobile launcher made the trip to the pad and the VAB. The mobile launcher will spend seven months in the VAB undergoing testing. The 380-foot-tall structure is equipped with the crew access arm and several umbilicals that will provide power, environmental control, pneumatics, communication and electrical connections to the agency's Space Launch System and Orion spacecraft. Exploration Ground Systems is preparing the ground systems necessary to launch SLS and Orion on Exploration Mission-1, missions to the Moon and on to Mars.

NASA's mobile launcher, atop crawler-transporter 2, is at the entrance to High Bay 3 at the Vehicle Assembly Building (VAB) on Sept. 8, 2018, at NASA's Kennedy Space Center in Florida. The mobile launcher departed Launch Pad 39B after several days of testing with the pad. This is the first time that the modified mobile launcher made the trip to the pad and the VAB. The mobile launcher will spend seven months in the VAB undergoing testing. The 380-foot-tall structure is equipped with the crew access arm and several umbilicals that will provide power, environmental control, pneumatics, communication and electrical connections to the agency's Space Launch System and Orion spacecraft. Exploration Ground Systems is preparing the ground systems necessary to launch SLS and Orion on Exploration Mission-1, missions to the Moon and on to Mars.

NASA's mobile launcher, atop crawler-transporter 2, is at the entrance to High Bay 3 at the Vehicle Assembly Building (VAB) on Sept. 8, 2018, at NASA's Kennedy Space Center in Florida. The mobile launcher departed Launch Pad 39B after several days of testing with the pad. This is the first time that the modified mobile launcher made the trip to the pad and the VAB. The mobile launcher will spend seven months in the VAB undergoing testing. The 380-foot-tall structure is equipped with the crew access arm and several umbilicals that will provide power, environmental control, pneumatics, communication and electrical connections to the agency's Space Launch System and Orion spacecraft. Exploration Ground Systems is preparing the ground systems necessary to launch SLS and Orion on Exploration Mission-1, missions to the Moon and on to Mars.

The engine vertical installer for NASA’s Space Launch System (SLS) is inside the Vehicle Assembly at NASA’s Kennedy Space Center in Florida on April 25, 2019. Preparations are underway to lift the engine installer up and into High Bay 3. The engine installer arrived from the manufacturer, Precision Fabrication and Cleaning in Canaveral Groves, Florida. The new ground support equipment will be ready for preflight processing in the event one of the four RS-25 engines on the core stage of the SLS rocket needs to be replaced. During launch of the SLS and Orion spacecraft, the four core stage engines will provide the thrust needed to lift the rocket and Orion spacecraft off Launch Pad 39B at Kennedy for Exploration Mission-1. The uncrewed Orion will travel on a three-week test mission thousands of miles beyond the Moon and back to Earth for a splashdown in the Pacific Ocean.

NASA's mobile launcher, atop crawler-transporter 2, begins the move into High Bay 3 at the Vehicle Assembly Building (VAB) on Sept. 8, 2018, at NASA's Kennedy Space Center in Florida. The mobile launcher departed Launch Pad 39B after several days of testing with the pad. This is the first time that the modified mobile launcher made the trip to the pad and the VAB. The mobile launcher will spend seven months in the VAB undergoing testing. The 380-foot-tall structure is equipped with the crew access arm and several umbilicals that will provide power, environmental control, pneumatics, communication and electrical connections to the agency's Space Launch System and Orion spacecraft. Exploration Ground Systems is preparing the ground systems necessary to launch SLS and Orion on Exploration Mission-1, missions to the Moon and on to Mars.

NASA's mobile launcher is inside High Bay 3 at the Vehicle Assembly Building (VAB) on Sept. 11, 2018, at NASA's Kennedy Space Center in Florida. The mobile launcher departed Launch Pad 39B after several days of testing with the pad. This is the first time that the modified mobile launcher made the trip to the pad and the VAB. The mobile launcher will spend seven months in the VAB undergoing testing. The 380-foot-tall structure is equipped with the crew access arm and several umbilicals that will provide power, environmental control, pneumatics, communication and electrical connections to the agency's Space Launch System and Orion spacecraft. Exploration Ground Systems is preparing the ground systems necessary to launch SLS and Orion on Exploration Mission-1, missions to the Moon and on to Mars.

NASA's mobile launcher is inside High Bay 3 at the Vehicle Assembly Building (VAB) on Sept. 11, 2018, at NASA's Kennedy Space Center in Florida. In view are several levels of the new work platforms. One platform level has been extended around the mobile launcher tower, and the crew access arm, in view at the top, is being extended. The mobile launcher will spend seven months in the VAB undergoing testing. The 380-foot-tall structure is equipped with the crew access arm and several umbilicals that will provide power, environmental control, pneumatics, communication and electrical connections to the agency's Space Launch System and Orion spacecraft. Exploration Ground Systems is preparing the ground systems necessary to launch SLS and Orion on Exploration Mission-1, missions to the Moon and on to Mars.

Preparations are underway to move NASA's mobile launcher, atop crawler-transporter 2, into High Bay 3 at the Vehicle Assembly Building (VAB) on Sept. 8, 2018, at NASA's Kennedy Space Center in Florida. The mobile launcher departed Launch Pad 39B after several days of testing with the pad. This is the first time that the modified mobile launcher made the trip to the pad and the VAB. The mobile launcher will spend seven months in the VAB undergoing testing. The 380-foot-tall structure is equipped with the crew access arm and several umbilicals that will provide power, environmental control, pneumatics, communication and electrical connections to the agency's Space Launch System and Orion spacecraft. Exploration Ground Systems is preparing the ground systems necessary to launch SLS and Orion on Exploration Mission-1, missions to the Moon and on to Mars.

NASA's mobile launcher is inside High Bay 3 at the Vehicle Assembly Building (VAB) on Sept. 11, 2018, at NASA's Kennedy Space Center in Florida. In view are several levels of the new work platforms. One level has been extended around the mobile launcher tower, and the crew access arm, in view at the top, is being extended. The mobile launcher will spend seven months in the VAB undergoing testing. The 380-foot-tall structure is equipped with the crew access arm and several umbilicals that will provide power, environmental control, pneumatics, communication and electrical connections to the agency's Space Launch System and Orion spacecraft. Exploration Ground Systems is preparing the ground systems necessary to launch SLS and Orion on Exploration Mission-1, missions to the Moon and on to Mars.

NASA's mobile launcher, atop crawler-transporter 2, moves slowly into High Bay 3 at the Vehicle Assembly Building (VAB) on Sept. 8, 2018, at NASA's Kennedy Space Center in Florida. The mobile launcher departed Launch Pad 39B after several days of testing with the pad. This is the first time that the modified mobile launcher made the trip to the pad and the VAB. The mobile launcher will spend seven months in the VAB undergoing testing. The 380-foot-tall structure is equipped with the crew access arm and several umbilicals that will provide power, environmental control, pneumatics, communication and electrical connections to the agency's Space Launch System and Orion spacecraft. Exploration Ground Systems is preparing the ground systems necessary to launch SLS and Orion on Exploration Mission-1, missions to the Moon and on to Mars.

The engine vertical installer for NASA’s Space Launch System (SLS) arrives by large transport truck at NASA’s Kennedy Space Center in Florida on April 25, 2019, from the manufacturer, Precision Fabrication and Cleaning in Canaveral Groves, Florida. The new ground support equipment will be delivered to the Vehicle Assembly Building where it will be ready for preflight assembly in the event one of the four RS-25 engines on the core stage of the SLS rocket needs to be replaced. During launch of the SLS and Orion spacecraft, the four core stage engines will provide the thrust needed to lift the rocket and Orion spacecraft off Launch Pad 39B at Kennedy for Exploration Mission-1. The uncrewed Orion will travel on a three-week test mission thousands of miles beyond the Moon and back to Earth for a splashdown in the Pacific Ocean.

NASA's mobile launcher, atop crawler-transporter 2, moves slowly into High Bay 3 at the Vehicle Assembly Building (VAB) on Sept. 8, 2018, at NASA's Kennedy Space Center in Florida. The mobile launcher departed Launch Pad 39B after several days of testing with the pad. This is the first time that the modified mobile launcher made the trip to the pad and the VAB. The mobile launcher will spend seven months in the VAB undergoing testing. The 380-foot-tall structure is equipped with the crew access arm and several umbilicals that will provide power, environmental control, pneumatics, communication and electrical connections to the agency's Space Launch System and Orion spacecraft. Exploration Ground Systems is preparing the ground systems necessary to launch SLS and Orion on Exploration Mission-1, missions to the Moon and on to Mars.

Technicians remove special planks covering tracks as NASA's mobile launcher, atop crawler-transporter 2, moves into High Bay 3 at the Vehicle Assembly Building (VAB) on Sept. 8, 2018, at NASA's Kennedy Space Center in Florida. The mobile launcher departed Launch Pad 39B after several days of testing with the pad. This is the first time that the modified mobile launcher made the trip to the pad and the VAB. The mobile launcher will spend seven months in the VAB undergoing testing. The 380-foot-tall structure is equipped with the crew access arm and several umbilicals that will provide power, environmental control, pneumatics, communication and electrical connections to the agency's Space Launch System and Orion spacecraft. Exploration Ground Systems is preparing the ground systems necessary to launch SLS and Orion on Exploration Mission-1, missions to the Moon and on to Mars.

The engine vertical installer for NASA’s Space Launch System (SLS) arrives by large transport truck at NASA’s Kennedy Space Center in Florida on April 25, 2019. The engine installer arrived from the manufacturer, Precision Fabrication and Cleaning in Canaveral Groves, Florida. The new ground support equipment will be delivered to the Vehicle Assembly where it will be ready for preflight processing in the event one of the four RS-25 engines on the core stage of the SLS rocket needs to be replaced. During launch of the SLS and Orion spacecraft, the four core stage engines will provide the thrust needed to lift the rocket and Orion spacecraft off Launch Pad 39B at Kennedy for Exploration Mission-1. The uncrewed Orion will travel on a three-week test mission thousands of miles beyond the Moon and back to Earth for a splashdown in the Pacific Ocean.

NASA's mobile launcher, atop crawler-transporter 2, moves slowly into High Bay 3 at the Vehicle Assembly Building (VAB) on Sept. 8, 2018, at NASA's Kennedy Space Center in Florida. The mobile launcher departed Launch Pad 39B after several days of testing with the pad. This is the first time that the modified mobile launcher made the trip to the pad and the VAB. The mobile launcher will spend seven months in the VAB undergoing testing. The 380-foot-tall structure is equipped with the crew access arm and several umbilicals that will provide power, environmental control, pneumatics, communication and electrical connections to the agency's Space Launch System and Orion spacecraft. Exploration Ground Systems is preparing the ground systems necessary to launch SLS and Orion on Exploration Mission-1, missions to the Moon and on to Mars.

CAPE CANAVERAL, Fla. – Inside the Operations and Checkout Building at NASA’s Kennedy Space Center in Florida, the Orion Exploration Flight Test 1 crew module has been moved onto the base of a birdcage tool. The birdcage will be used to continue installation of external components in preparation for Orion’s first uncrewed test flight in 2014 atop a Delta IV rocket. Orion is the exploration spacecraft designed to carry crews to space beyond low Earth orbit. It will provide emergency abort capability, sustain the crew during the space travel and provide safe re-entry from deep space return velocities. A second uncrewed flight test is scheduled for 2017 on NASA’s Space Launch System rocket. For more information, visit http://www.nasa.gov/orion. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – Inside the Operations and Checkout Building at NASA’s Kennedy Space Center in Florida, a birdcage tool along with work platforms have been placed around the Orion Exploration Flight Test 1 crew module. The birdcage will be used to continue installation of external components in preparation for Orion’s first uncrewed test flight in 2014 atop a Delta IV rocket. Orion is the exploration spacecraft designed to carry crews to space beyond low Earth orbit. It will provide emergency abort capability, sustain the crew during the space travel and provide safe re-entry from deep space return velocities. A second uncrewed flight test is scheduled for 2017 on NASA’s Space Launch System rocket. For more information, visit http://www.nasa.gov/orion. Photo credit: NASA/Charisse Nahser

CAPE CANAVERAL, Fla. – Inside the Operations and Checkout Building at NASA’s Kennedy Space Center in Florida, technicians monitor the progress as a crane lowers the Orion Exploration Flight Test 1 crew module toward the base of a birdcage tool. The birdcage will be used to continue installation of external components in preparation for Orion’s first uncrewed test flight in 2014 atop a Delta IV rocket. Orion is the exploration spacecraft designed to carry crews to space beyond low Earth orbit. It will provide emergency abort capability, sustain the crew during the space travel and provide safe re-entry from deep space return velocities. A second uncrewed flight test is scheduled for 2017 on NASA’s Space Launch System rocket. For more information, visit http://www.nasa.gov/orion. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – Inside the Operations and Checkout Building at NASA’s Kennedy Space Center in Florida, technicians monitor the progress as a crane is used to move the Orion Exploration Flight Test 1 crew module to the base of a birdcage tool. The birdcage will be used to continue installation of external components in preparation for Orion’s first uncrewed test flight in 2014 atop a Delta IV rocket. Orion is the exploration spacecraft designed to carry crews to space beyond low Earth orbit. It will provide emergency abort capability, sustain the crew during the space travel and provide safe re-entry from deep space return velocities. A second uncrewed flight test is scheduled for 2017 on NASA’s Space Launch System rocket. For more information, visit http://www.nasa.gov/orion. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – Inside the Operations and Checkout Building high bay at NASA’s Kennedy Space Center in Florida, a technician attaches a crane to the Orion Exploration Flight Test 1 crew module so that it can be moved to the base of a birdcage tool. The birdcage will be used to continue installation of external components in preparation for Orion’s first uncrewed test flight in 2014 atop a Delta IV rocket. Orion is the exploration spacecraft designed to carry crews to space beyond low Earth orbit. It will provide emergency abort capability, sustain the crew during the space travel and provide safe re-entry from deep space return velocities. A second uncrewed flight test is scheduled for 2017 on NASA’s Space Launch System rocket. For more information, visit http://www.nasa.gov/orion. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – Inside the Operations and Checkout Building at NASA’s Kennedy Space Center in Florida, technicians provide assistance as a crane lowers the Orion Exploration Flight Test 1 crew module onto the base of a birdcage tool. The birdcage will be used to continue installation of external components in preparation for Orion’s first uncrewed test flight in 2014 atop a Delta IV rocket. Orion is the exploration spacecraft designed to carry crews to space beyond low Earth orbit. It will provide emergency abort capability, sustain the crew during the space travel and provide safe re-entry from deep space return velocities. A second uncrewed flight test is scheduled for 2017 on NASA’s Space Launch System rocket. For more information, visit http://www.nasa.gov/orion. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – Inside the Operations and Checkout Building at NASA’s Kennedy Space Center in Florida, technicians monitor the progress as a crane lowers the Orion Exploration Flight Test 1 crew module toward the base of a birdcage tool. The birdcage will be used to continue installation of external components in preparation for Orion’s first uncrewed test flight in 2014 atop a Delta IV rocket. Orion is the exploration spacecraft designed to carry crews to space beyond low Earth orbit. It will provide emergency abort capability, sustain the crew during the space travel and provide safe re-entry from deep space return velocities. A second uncrewed flight test is scheduled for 2017 on NASA’s Space Launch System rocket. For more information, visit http://www.nasa.gov/orion. Photo credit: NASA/Kim Shiflett

CAPE CANAVERAL, Fla. – Inside the Operations and Checkout Building at NASA’s Kennedy Space Center in Florida, technicians provide assistance as a crane lowers the Orion Exploration Flight Test 1 crew module onto the base of a birdcage tool. The birdcage will be used to continue installation of external components in preparation for Orion’s first uncrewed test flight in 2014 atop a Delta IV rocket. Orion is the exploration spacecraft designed to carry crews to space beyond low Earth orbit. It will provide emergency abort capability, sustain the crew during the space travel and provide safe re-entry from deep space return velocities. A second uncrewed flight test is scheduled for 2017 on NASA’s Space Launch System rocket. For more information, visit http://www.nasa.gov/orion. Photo credit: NASA/Kim Shiflett