Engineers and technicians with the Exploration Ground Systems Program stack the first Moon rocket segment – the left aft assembly for the Artemis II SLS (Space Launch System) solid rocket booster onto mobile launcher 1 inside the Vehicle Assembly Building at NASA’s Kennedy Space Center on Wednesday, Nov. 20, 2024. Photo credit: NASA/Glenn Benson
Engineers and technicians inside the Vehicle Assembly Building (VAB) at NASA’s Kennedy Space Center in Florida stacked the first segment of the Artemis II SLS (Space Launch System) rocket boosters onto mobile launcher 1.
Comprising 10 segments total – five segments for each booster – the SLS solid rocket boosters arrived via train to NASA Kennedy in September 2023 from Northrop Grumman’s manufacturing facility in Utah. The booster segments underwent processing in the spaceport’s Rotation, Processing and Surge Facility before being transferred to the NASA’s iconic VAB for stacking operations.
Technicians inside the 525-foot-tall facility used an overhead crane to lift the left aft assembly onto the mobile launcher. Up next, workers will install the right aft assembly, placing it carefully onto the 380-foot-tall structure used to process, assemble, and launch the SLS rocket and Orion spacecraft.
The first components of the Artemis II Moon rocket to be stacked, the solid rocket boosters will help support the remaining rocket segments and the Orion spacecraft during final assembly. At launch, the 177-foot-tall twin solid rocket boosters provide more than 75 percent of the total SLS thrust during liftoff from NASA Kennedy’s Launch Pad 39B.
Teams with NASA’s Exploration Ground Systems Program at the agency’s Kennedy Space Center in Florida prepare to move mobile launcher 1 atop the agency’s crawler-transporter 2 from Launch Complex 39B to the Vehicle Assembly Building on Tuesday, Oct. 1, 2024. The crawler transporter recently reached 2,500 miles traveling to the launch pad since its construction in 1965. The mobile launcher will be used to assemble, process, and launch NASA’s SLS (Space Launch Systems) and Orion spacecraft to the Moon and beyond. Photo Credit: NASA/Kim Shiflett
NASA rolled closer to integrating elements of the Artemis II Moon rocket together as teams with the agency’s Exploration Ground Systems Program at Kennedy Space Center in Florida began moving the mobile launcher 1 from Launch Complex 39B along a 4.2 mile stretch back to the Vehicle Assembly Building. First motion of the mobile launcher, atop NASA’s crawler-transporter 2, occurred at 12:09 a.m. EDT Thursday, Oct. 3.
Teams rolled the mobile launcher out to Kennedy’s Pad 39B in August 2023 for upgrades and a series of ground demonstration tests in preparation for NASA’s Artemis II mission. These preparations ranged from a launch day demonstration for the crew, closeout crew, and the pad rescue team, to testing the emergency egress system, water flow system, and the new liquid hydrogen sphere at the launch pad.
On its way to transport the mobile launcher back from the pad, NASA’s crawler-transporter 2 also achieved a milestone nearly 60 years in the making. Already designated by Guinness World Records as the heaviest self-powered vehicle – larger than a baseball infield and weighing approximately 6.65 million pounds – the crawler reached 2,500 miles traveled since its construction in 1965.
The mobile launcher is expected to arrive outside the Vehicle Assembly Building around 10 a.m. Thursday, Oct.3, before the Exploration Ground Systems teams move it into High Bay 3 on Friday, Oct.4.
Follow the livestream of the mobile launcher on the move.
NASA is working to fly five CubeSats from international space agencies on the Artemis II test flight, the first crewed mission under NASA’s Artemis campaign.
In a ceremony at the German Space Agency DLR Sept. 18, Catherine Koerner, NASA’s associate administrator for exploration systems development, signed an agreement for Germany to fly TACHELES, a CubeSat that will collect measurements on the effects of the space environment on electrical components to inform technologies for lunar vehicles.
CubeSats are shoebox-sized payloads that have the potential to expand knowledge of the space environment. They will ride to space inside a ring that connects NASA’s Orion spacecraft to the upper stage of the SLS (Space Launch System) rocket. They will be deployed in high Earth orbit after the upper stage detaches from Orion and the spacecraft is safely flying free on its own and a safe distance away from the stage.
By working with other countries to fly CubeSats, NASA is increasing access to space for the international community and enabling its partners to expand scientific and technological knowledge. Although mission success for CubeSats historically has mixed results given their small size and the relatively low cost to develop them, the collaborations provide opportunities for NASA and other countries to work together to integrate and fly technology and experiments as part of Artemis.
NASA will share more details about the additional countries it is working with to fly CubeSats on Artemis II, all of which are countries that have signed the Artemis Accords, as the international agreements are put in place.
Following successful testing earlier this year of the high-speed film and high-speed digital cameras on mobile launcher 1 and Launch Pad 39B, teams at NASA’s Kennedy Space Center in Florida recently completed additional testing to gather more data for the film cameras ahead of the Artemis II mission.
Building on the first test, engineers with the agency’s Exploration Ground Systems Program updated the software that activates the film cameras remotely from the firing room at the spaceport’s Launch Control Center. Teams turned on the cameras remotely to demonstrate two different capabilities: triggering the cameras through the countdown clock, which is how these cameras will normally operate during the launch countdown, and activating them through the emergency camera control panel, which allows teams to turn on the cameras in the unlikely event of an emergency during launch countdown.
The 68 high-speed cameras, which start during the final 12 seconds of the countdown, will provide views of the rocket and surrounding ground structures during launch. The imagery also is used in detailed post-launch analysis.
This test is part of integrated testing to verify and validate the ground systems that will support launch. The Artemis II test flight will be NASA’s first mission with crew under the Artemis campaign, sending NASA astronauts Reid Wiseman, Victor Glover, and Christina Koch, as well as CSA (Canadian Space Agency) astronaut Jeremy Hansen, on a 10-day journey around the Moon.
Teams at NASA’s Kennedy Space Center in Florida practice the Artemis mission emergency escape or egress procedures during a series of integrated system verification and validation tests at Launch Pad 39B on Sunday, Aug. 11, 2024. Members of the closeout crew, pad rescue team and the Exploration Ground Systems Program practiced the process of getting inside and out of the emergency egress baskets. While the crew and other personnel will ride the emergency egress baskets to the terminus area in a real emergency, no one rode the baskets for this test. Instead, teams tested the baskets during separate occasions by using water tanks filled to different levels to replicate simulate the weight of passengers. Photo credit: NASA/Kim Shiflett
Teams with NASA’s Exploration Ground Systems (EGS) Program at the agency’s Kennedy Space Center completed an emergency egress system demonstration throughout the course of several days at Launch Complex 39B ahead of the Artemis II test flight that will carry four astronauts around the Moon.
The EGS team practiced emergency procedures during day and nighttime launch scenarios with the closeout crew, the team responsible for helping the astronauts get inside the Orion spacecraft, and the Pad Rescue team, which would aid personnel away from the launch pad in an emergency.
Training included exiting the white room in the crew access arm of the mobile launcher, the area where the crew enters and exits Orion, while the fire suppression system was fully activated. The team then evacuated to the terminus area, the location at the perimeter of the launch pad where the emergency egress baskets come to a stop. For this test, personnel did not ride down the baskets, but did have the opportunity to practice getting inside the baskets when on the mobile launcher and exiting them at the terminus area. Once there, armored emergency response vehicles drove the team away to one of the designated safe site locations at Kennedy.
NASA
“Our latest integrated ground systems test is about demonstrating the capability of the entire emergency egress response,” said Charlie Blackwell-Thompson, Artemis launch director. “From the time an emergency condition is declared until we have the crews, both flight and ground, safely accounted for outside the hazardous area.”
During a real emergency, personnel will use the emergency egress baskets, which are suspended on a track cable that connects the mobile launcher to the perimeter of the pad. From there, they will travel down the 1,335-foot-long cables where the emergency response vehicles will drive them away to safety. Prior to this test and throughout the course of several months, teams conducted several basket release demonstrations to validate the system.
During this test campaign the Artemis launch team also conducted an emergency egress demonstration simulation to practice how team members would respond to an emergency taking place at the pad during launch countdown.
EGS team members will have another opportunity to practice the emergency egress procedures with the Artemis II crew during a test closer to launch when the rocket is at the launch pad.
After completing its journey from NASA’s Michoud Assembly Facility in New Orleans aboard the Pegasus barge, teams with Exploration Ground Systems (EGS) transport the agency’s powerful SLS (Space Launch System) core stage to NASA’s Kennedy Space Center’s Vehicle Assembly Building in Florida on Tuesday, July 23, 2024. Photo credit: NASA/Isaac Watson
NASA’s SLS (Space Launch System) rocket core stage for the Artemis II mission is inside the Vehicle Assembly Building at the agency’s Kennedy Space Center in Florida.
Tugboats and towing vessels moved the barge and core stage 900-miles to the Florida spaceport from NASA’s Michoud Assembly Facility in New Orleans, where it was manufactured and assembled.
Team members with NASA’s Exploration Ground Systems Program safely transferred the 212-foot-tall core stage from the agency’s Pegasus barge, which arrived at NASA Kennedy’s Complex 39 turn basin wharf on July 23, onto the self-propelled module transporter, which is used to move large elements of hardware. It was then rolled to the Vehicle Assembly Building transfer aisle where teams will process it until it is ready for rocket stacking operations.
In the coming months, teams will integrate the rocket core stage atop the mobile launcher with the additional Artemis II flight hardware, including the twin solid rocket boosters, launch vehicle stage adapter, and the Orion spacecraft.
The Artemis II test flight will be NASA’s first mission with crew under the Artemis campaign, sending NASA astronauts Victor Glover, Christina Koch, and Reid Wiseman, as well as CSA (Canadian Space Agency) astronaut Jeremy Hansen, on a 10-day journey around the Moon and back.
NASA’s Pegasus barge, carrying the agency’s massive SLS (Space Launch System) core stage, arrives at NASA’s Kennedy Space Center Complex 39 turn basin wharf in Florida on Tuesday, July 23, 2024, after journeying from the agency’s Michoud Assembly Facility in New Orleans. The core stage is the next piece of Artemis hardware to arrive at the spaceport and will be offloaded and moved to NASA Kennedy’s Vehicle Assembly Building, where it will be prepared for integration ahead of the Artemis II launch. Photo credit: NASA/Kim Shiflett
NASA’s powerful SLS (Space Launch System) rocket core stage for the Artemis II mission arrived on Tuesday, July 23, at the agency’s Kennedy Space Center in Florida. The core stage will help power SLS when it launches four astronauts around the Moon for the first crewed flight of SLS and the Orion spacecraft during the Artemis II test flight.
The core stage, aboard NASA’s Pegasus barge, traveled from the agency’s Michoud Assembly Facility in New Orleans and spent seven days coasting through the Gulf of Mexico and then the Atlantic Ocean before arriving at NASA Kennedy’s Complex 39 turn basin wharf.
The 212-foot-tall SLS core stage, its propellant tanks, avionics, flight computer systems, and four RS-25 engines, were manufactured and assembled at NASA Michoud. Now, teams with NASA Kennedy’s Exploration Ground Systems Program will prepare the rocket stage for integration ahead of launch.
The only rocket that can send the Orion spacecraft, astronauts, and supplies to the Moon on a single launch is the Space Launch System. Its core stage provides more than two million pounds of thrust and the whole rocket provides 8.8 million pounds of thrust to launch Artemis II to the Moon.
Up next, the core stage will roll to NASA Kennedy’s Vehicle Assembly Building, where teams will process it until it is ready for rocket stacking operations.
Follow the livestream of the core stage offload online expected to begin at 9 a.m. Wednesday.
NASA’s Exploration Ground Systems conducts a water flow test with the mobile launcher at Kennedy Space Center’s Launch Complex 39B in Florida on Oct. 24, 2023. It is the third in a series of tests to verify the overpressure protection and sound suppression system is ready for launch of the Artemis II mission. During liftoff, 400,000 gallons of water will rush onto the pad to help protect NASA’s SLS (Space Launch System) rocket, Orion spacecraft, mobile launcher, and launch pad from any over pressurization and extreme sound produced during ignition and liftoff. Photo Credit: NASA/Kim Shiflett
Teams with NASA’s Exploration Ground Systems Program successfully completed tests of the ignition overpressure protection and sound suppression and launch cooling systems at Launch Pad 39B at the agency’s Kennedy Space Center in Florida. These systems will protect the mobile launcher umbilicals and other crucial ground systems during liftoff of the Artemis II mission.
When SLS’s (Space Launch System) solid rocket boosters ignite, the RS-25 engines start up, and the rocket comes to life, there will be a thundering amount of noise, heat, and energy produced at liftoff. To ensure the crew, SLS, the Orion spacecraft and the surrounding ground infrastructure are protected during launch, teams practiced releasing approximately 400,000 gallons of water from large overhead holding tanks onto the mobile launcher and the pad’s flame deflector. The water will provide protection from the extreme heat generated by SLS’s exhaust and help suppress the sound produced at liftoff.
Recent upgrades to the mobile launcher were designed to enhance the performance of these systems and assure better launch imagery. Some of the upgrades include:
New water balancing plates on the mobile launcher and pad piping to allow higher water flow rates
Redesigned rainbird water nozzles to allow increased water flow rates and improved mobile launcher deck water coverage
New hydrogen burn-off ignitor and camera water barriers for protection from the increased mobile launcher deck water flow
Raised camera housings and additional splash shields around the lenses to maximize amount of video obtained during launch
Adding additional levels on the mobile launcher to protect the emergency egress baskets and pilot line hoist motors
The water flows were conducted as part of a series of integrated ground systems tests intended to confirm that various systems on the mobile launcher and at Launch Pad 39B work as intended, both individually and with each other.
The Artemis II mission builds on the success of the uncrewed Artemis I mission and will demonstrate a broad range of capabilities needed for missions to the Moon and beyond. The Artemis II test flight will be NASA’s first mission with crew aboard the SLS rocket and Orion spacecraft and confirm the spacecraft systems operate as designed with crew aboard in the environment of deep space.
Technicians used a 30-ton crane to lift NASA’s Orion spacecraft on Friday, June 28, 2024, from the Final Assembly and System Testing (FAST) cell to the altitude chamber inside the Neil A. Armstrong Operations and Checkout building at NASA’s Kennedy Space Center in Florida. The spacecraft, which will be used for the Artemis II mission to orbit the Moon, underwent leak checks and end-to-end performance verification of the vehicle’s subsystems.
NASA’s Orion spacecraft for the Artemis II mission was lifted out of the Final Assembly and System Testing cell on June 28 inside the Neil A. Armstrong Operations and Checkout building at NASA’s Kennedy Space Center in Florida. The integrated spacecraft has been undergoing final rounds of testing and assembly, including end-to-end performance verification of its subsystems and checking for leaks in its propulsion systems.
A 30-ton crane returned Orion into the recently renovated altitude chamber where it underwent electromagnetic testing. The spacecraft now will undergo a series of vacuum chamber qualification testing. The tests will subject the spacecraft to a near-vacuum environment by removing air, thus creating a space where the pressure is extremely low. This results in no atmosphere, similar to the one the spacecraft will experience during future lunar missions.
Testing will span approximately a week, with technicians collecting data from the spacecraft’s chamber, cabin, and the environmental control and life support system to test spacesuit functionality. The data recorded during these tests will be used to qualify the spacecraft to safely fly the Artemis II astronauts through the harsh environment of space.
Teams with NASA’s Exploration Ground Systems (EGS) Program successfully tested the upgraded environmental control system on mobile launcher 1 while it’s at Launch Pad 39B at the agency’s Kennedy Space Center in Florida in preparation for Artemis II. This system provides air supply, thermal control, and pressurization to SLS (Space Launch System) and the Orion spacecraft during cryogenic propellant loading.
During propellant loading, the environmental control system purges specific compartments within Orion and SLS using gaseous nitrogen to maintain the proper environmental conditions. This is critical, as the rocket and spacecraft must be in a safe and stable configuration and temperature when dealing with hazardous gasses. The severtal-week test, which started April 17, was conducted in two parts. Teams first started flowing air through the system and then followed by flowing gaseous nitrogen.
This marks the next set of tests complete for EGS teams as part of the integrated system verification and validation testing in preparation for Artemis II, the first crewed Artemis mission that will send four astronauts around the Moon and back next year.
The testing puts the team and ground infrastructures to work and ensures each are functioning properly and allows the team to update and refine procedures ahead of launch. Part of this series includes testing the launch pad’s environmental control system, the emergency egress system, the ignition overpressure protection and sound suppression system, among others.
