NASA’s Space Launch System (SLS) solid rocket boosters have grown taller with the addition of the fifth and final pair of motor segments in preparation for the launch of Artemis I later this year. At NASA’s Kennedy Space Center in Florida, engineers with Exploration Ground Systems lowered the final solid rocket booster into place on the mobile launcher on Feb. 23. Up next, the nose assemblies will be placed atop the segments to complete the boosters. The twin boosters will power the first flight of the agency’s new deep space rocket during the launch of Artemis I. This mission is an uncrewed flight to test the SLS rocket and Orion spacecraft as an integrated system, preparing the way for Artemis II and other crewed flights to the Moon.
NASA’s Artemis I Orion spacecraft is being outfitted with additional artwork as technicians began installing the logo for ESA (European Space Agency). ESA provided the European-built service module, which provides power and propulsion for the Orion spacecraft, and will also provide water and air for astronauts on future missions.
Artemis I extends NASA and ESA’s strong international partnership beyond low-Earth orbit to lunar exploration with Orion on Artemis missions. The ESA logo joins the historic NASA “meatball” insignia on the Artemis I spacecraft adapter jettison fairing panels that protect the service module during launch.
Orion is currently stationed at NASA’s Kennedy Space Center in the Multi-Payload Processing Facility, where it will undergo fueling and servicing by NASA’s Exploration Ground Systems and Jacobs Technology teams in preparation for the upcoming flight test with the Space Launch System rocket under the agency’s Artemis program.
Booster stacking continues! The second to last set of segments for NASA’s Space Launch System (SLS) solid rocket boosters were placed on the mobile launcher inside the Vehicle Assembly Building at NASA’s Kennedy Space Center. Engineers with Exploration Ground Systems and Jacobs transported the segments from the Rotation, Processing and Surge Facility, where they have been since June. Once fully stacked, each booster will stand nearly 17 stories tall. The twin boosters will power the first flight of the agency’s new deep space rocket during the Artemis I mission. This uncrewed flight later this year will test the SLS rocket and Orion spacecraft as an integrated system ahead of crewed flights.
The third of five sets of solid rocket boosters for NASA’s Space Launch System (SLS) rocket were placed on the mobile launcher inside the Vehicle Assembly Building (VAB) at NASA’s Kennedy Space Center in Florida. The middle segments, painted with the iconic “worm” logo, were lifted onto the launcher by Jacobs and Exploration Ground Systems engineers using the VAB’s 325-ton crane.
The twin boosters will power the first flight of the agency’s new deep space rocket on its first Artemis Program mission. Artemis I will be an uncrewed flight to test the SLS rocket and Orion spacecraft as an integrated system ahead of crewed flights.
Booster stacking for NASA’s Space Launch System (SLS) rocket is continuing at NASA’s Kennedy Space Center. The second of five segments for the SLS rocket boosters have been placed on the mobile launcher in preparation for the launch of Artemis I later this year. This marks four out of 10 solid rocket booster segments being lifted via crane and placed on the launcher, the structure used to process, assemble, and launch SLS. The twin boosters will power the first flight of SLS, the agency’s new deep space rocket for Artemis I. This uncrewed flight will test the SLS and Orion spacecraft as an integrated system ahead of crewed flights to the Moon as part of the Artemis program.
Before the most powerful rocket in existence can lift off for lunar missions, it must first make the 4.2-mile trek from the Vehicle Assembly Building (VAB) to the launch pad at NASA’s Kennedy Space Center in Florida.
For the Artemis I mission, the path from the VAB to Launch Complex 39B must be able to support the behemoth Crawler Transporter-2 — as well as the massive weight of the Space Launch System (SLS) rocket, the Orion capsule, and the mobile launcher. Teams at Kennedy are working to ensure the crawlerway is strong enough to withstand the weight and provide stability for the Artemis I mission and then some.
“Conditioning the crawlerway is important to prevent a phenomenon we call liquefaction, in which the crawler transporter, the mobile launcher, and the load on it causes the crawlerway to vibrate and shake the soil,” said Robert Schroeder, design manager of the crawlerway conditioning project and engineer at Kennedy. “Essentially, the soil itself will behave like a liquid instead of a solid, which could cause the crawler to tip to one side or the other.”
The crawlerway is currently required to support 25.5 million pounds for the Artemis I mission. However, as essential payloads will be added on future missions, the teams at Kennedy decided to test additional weight so they would be “ahead of the ballgame,” Schroeder said.
Work to prepare the crawlerway began Nov. 23. Over the next few months, technicians will lift several concrete blocks, each weighing over 40,000 pounds, onto the mobile launcher platform used for the space shuttle and Crawler Transporter-2. They will then drive the loaded transporter up and down the path between the VAB and launch pad, with each pass increasingly compacting the soil. By the time the project ends, the crawlerway will have supported more than 26 million pounds.
Artemis I will be the first in a series of increasingly complex missions to the Moon. Under the Artemis program, NASA aims to land the first woman and the next man on the Moon in 2024 and establish sustainable lunar exploration by the end of the decade.
Inside the Neil Armstrong Operations and Checkout Building at NASA’s Kennedy Space Center in Florida, technicians have extended one of the Artemis I solar array wings on Sept. 10, 2020. Prior to installation on the Orion spacecraft, the team performed an inspection to confirm proper extension and to ensure all of the mechanisms functioned as expected. The pictured solar array is one of four panels that will generate 11 kilowatts of power and span about 63 feet. The array is a component of Orion’s service module, which is provided by the European Space Agency and built by Airbus Defence and Space to supply Orion’s power, propulsion, air and water.
The first in a series of increasingly complex missions, Artemis I will test the Orion spacecraft and Space Launch System as an integrated system ahead of crewed flights to the Moon. Under the Artemis program, NASA will land the first woman and the next man on the Moon in 2024.
The launch team for Artemis I is back in the firing room at NASA’s Kennedy Space Center for more practice. The team conducted a simulation on the procedures for cryogenic loading, or fueling the Space Launch System rocket with super cold propellants. During simulations potential problems are introduced to the team to test the application of firing room tools, processes, and procedures.
The Exploration Ground Systems team of launch controllers who will oversee the countdown and liftoff of the SLS rocket and Orion spacecraft will be practicing the procedures several more times ahead of launch. Special protocols have been put in place to keep personnel safe and healthy, including limiting personnel in the firing room, using acrylic dividers and adjusting assigned seating for the cryo team.
NASA’s Exploration Ground Systems team, including engineers, technicians and crane operators with contractor Jacobs, are practicing lifting and stacking operations with pathfinder segments of Northrup Grumman’s solid rocket boosters, which will provide extra thrust for NASA’s Space Launch System rocket. Practice took place in High Bay 4 of the Vehicle Assembly Building at the agency’s Kennedy Space Center in Florida.
”The pathfinder training has gone extremely well,” according to Michael McClure, Jacobs’ lead engineer for the Handling, Mechanical and Structures Engineering Group. “This is part of a series of practice exercises, which are providing great experience, especially for our new technicians, engineers, quality control personnel and crane operators.”
Stacking rehearsals help prepare the team for actual processing of launch hardware for Artemis missions. These specific pathfinder segments are inert, full-scale replicas of the actual solid rocket boosters, with the same weight (300,000 pounds) and center of gravity.
During launch hardware processing, the booster segments will be shipped by train to Kennedy from the Northrup Grumman facility in Utah. They will arrive at a processing facility to be configured for final processing, then move to the VAB, where the launch processing team will stack them vertically on the mobile launcher. After the boosters are stacked, the SLS Core Stage will be lowered onto the mobile launcher and will be mated to the boosters.
At launch, the five-segment, 17-story-tall twin boosters will provide 3.6 million pounds of thrust each at liftoff to help launch the SLS carrying Orion on Artemis I, its first uncrewed mission beyond the Moon.
Watch a time lapse video of booster segment training at https://go.nasa.gov/2ts6u3w.
NASA’s Pegasus barge, with the 212-foot-long Space Launch System (SLS) rocket core stage pathfinder secured inside, departed the Launch Complex 39 turn basin wharf at NASA’s Kennedy Space Center in Florida on Oct. 31, 2019.
The pathfinder is a full-scale mock-up of the rocket’s core stage. It was used by the Exploration Ground Systems Program and its contractor, Jacobs, to practice offloading, moving and stacking maneuvers inside the Vehicle Assembly Building using ground support equipment to train employees and certify all the equipment works properly. The pathfinder was at Kennedy for about a month.
The barge is carrying the pathfinder back to the agency’s Michoud Assembly Facility in Louisiana.