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.
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 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 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.
On Friday, April 26, engineers completed a series of electromagnetic tests on the integrated Orion crew and service module for NASA’s Artemis II mission inside the Neil A. Armstrong Operations and Checkout (O&C) Building at the agency’s Kennedy Space Center in Florida.
During testing, engineers subjected the spacecraft to electromagnetic energy using wave guides, amplifiers, and antenna horns while inside an altitude chamber.
The test helps verify that all of Orion’s electronic systems can work in sync and safeguards against potential malfunctions caused by electromagnetic disturbances in the harsh and complex environment of space. Engineers will analyze the data collected during testing to ensure all systems on Orion are not disturbed by electromagnetic energy and the spacecraft is ready to safely fly the crew around the Moon.
The team returned the spacecraft to the Final Assembly and System Testing, or FAST cell inside the O&C building following electromagnetic testing for additional work in preparation for further performance testing inside the vacuum chamber later this summer.
On Oct. 19, the Orion crew and service modules for the Artemis II mission were joined together inside the Neil Armstrong Operations and Checkout Building at NASA’s Kennedy Space Center in Florida.
After successfully completing hardware installations and testing over the past several months, engineers connected the two major components of Orion that will fly NASA astronauts Reid Wiseman, Victor Glover, and Christina Koch, along with CSA (Canadian Space Agency) astronaut Jeremy Hansen on a mission around the Moon and bring them home safely.
Now that the crew and service modules are integrated, the team will power up the combined crew and service module for the first time. After power on tests are complete, Orion will begin altitude chamber testing, which will put the spacecraft through conditions as close as possible to the environment it will experience in the vacuum of deep space.
Technicians at NASA’s Michoud Assembly Facility in New Orleans have installed the first of four RS-25 engines on the core stage of the agency’s SLS (Space Launch System) rocket that will help power NASA’s first crewed Artemis mission to the Moon. During Artemis II, NASA astronauts Reid Wiseman, Victor Glover, Christina Koch, and CSA (Canadian Space Agency) astronaut Jeremy Hansen will launch on SLS and journey around the Moon inside the Orion spacecraft during an approximately 10-day mission in preparation for future lunar missions.
The Sept. 11 engine installation follows the joining of all five major structures that make up the SLS core stage earlier this spring. NASA, lead RS-25 engines contractor Aerojet Rocketdyne, an L3 Harris Technologies company, and Boeing, the core stage lead contractor, will continue integrating the remaining three engines into the stage and installing the propulsion and electrical systems within the structure.
All four RS-25 engines are located at the base of the core stage within the engine section, which protects the engines from the extreme temperatures during launch and has an aerodynamic boat tail fairing to channel airflow. During launch and flight, the four engines will fire nonstop for over eight minutes, consuming propellant from the core stage’s two massive propellant tanks at a rate of 1,500 gallons (5,678 liters) per second.
Each SLS engine has a different serial number. The serial number for the engine installed Sept. 11 in position two on the core stage is E2059. It along with the engine in position one, E2047, previously flew on space shuttle flights. E2047 is the most veteran engine of the entire set flying on Artemis II with 15 shuttle flights, including STS-98, which delivered the Destiny Laboratory Module to the International Space Station in 2001. The engines installed in positions three and four (E2062 and E2063) are new engines that include previously flown hardware.
NASA is working to land the first woman and first person of color on the Moon under Artemis. SLS is part of NASA’s backbone for deep space exploration, along with Orion and the Gateway in orbit around the Moon, and commercial human landing systems. SLS is the only rocket that can send Orion, astronauts, and supplies to the Moon in a single mission.
On Aug. 13, engineers and technicians inside the high bay of the Neil Armstrong Operations and Checkout Building at NASA’s Kennedy Space Center in Florida successfully completed a series of acoustic tests to ensure the Orion spacecraft for NASA’s Artemis II mission can withstand the speed and vibration it will experience during launch and throughout the 10-day mission around the Moon, the first Artemis mission with astronauts.
During the testing, engineers surrounded the crew module with large stacks of speakers, and attached microphones, accelerometers, and other equipment to measure the effects of different acoustic levels. Engineers and technicians will now analyze the data collected during the tests.
Prior to testing, the four Artemis II astronauts visited the high bay and viewed their ride to the Moon. With this test complete, technicians at Kennedy are on track to integrate Orion’s crew and service modules this fall.
The Artemis II crew – NASA astronauts Reid Wiseman, Victor Glover, Christina Hammock Koch, and Canadian Space Agency astronaut Jeremy Hansen – visited Naval Base San Diego on July 19 ahead of the first Artemis II recovery test in the Pacific Ocean, Underway Recovery Test-10. The test will build on the success of Artemis I recovery and ensure NASA and the Department of Defense personnel can safely recover astronauts and their Orion spacecraft after their trip around the Moon on the first crewed Artemis mission.
The crew met with recovery team members from NASA’s Exploration Ground Systems Program and the Department of Defense to learn more about the recovery process for their mission, which includes being extracted from the spacecraft after splashing down in the Pacific Ocean and being lifted via helicopter to the recovery ship where they will undergo routine medical checks before returning to shore.
The visit included a walkdown of the ground equipment and facilities the team uses to practice recovery procedures along with a walkthrough of the recovery ship. The crew will participate in full recovery testing at sea next year.
On June 25, 2023, teams completed installation of the heat shield for the Artemis II Orion spacecraft inside the high bay of the Neil Armstrong Operations and Checkout Building at NASA’s Kennedy Space Center in Florida.
The 16.5-foot-wide heat shield is one of the most important systems on the Orion spacecraft ensuring a safe return of the astronauts on board. As the spacecraft returns to Earth following its mission around the Moon, it will be traveling at speeds of about 25,000 mph and experience outside temperatures of nearly 5,000 degrees Fahrenheit. Inside the spacecraft, however, astronauts will experience a much more comfortable temperature in the mid-70s thanks to Orion’s thermal protection system.
Up next, the spacecraft will be outfitted with some of its external panels ahead of acoustic testing later this summer. These tests will validate the crew module can withstand the vibrations it will experience throughout the Artemis II mission, during launch, flight, and landing.
Once acoustic testing is complete, technicians will attach the crew module to Orion’s service module, marking a major milestone for the Artemis II mission, the first mission with astronauts under Artemis that will test and check out all of Orion’s systems needed for future crewed missions.