Final stacking operations for NASA’s mega-Moon rocket are underway inside the Vehicle Assembly Building at NASA’s Kennedy Space Center as the Orion spacecraft is lifted onto the Space Launch System (SLS) rocket for the Artemis I mission. Engineers and technicians with Exploration Ground Systems (EGS) and Jacobs attached the spacecraft to one of the five overhead cranes inside the building and began lifting it a little after midnight EDT.
Next, teams will slowly lower it onto the fully stacked SLS rocket and connect it to the Orion Stage Adapter. This will require the EGS team to align the spacecraft perfectly with the adapter before gently attaching the two together. This operation will take several hours to make sure Orion is securely in place.
NASA will provide an update once stacking for the Artemis I mission is complete.
A nine-month demolition project for the 25-foot high, 160-foot long, and 135-foot-wide platform, which weighed 9.1 million pounds, was completed last month. Though MLP-2 was a historic piece of equipment, its removal makes way for newer, more advanced technology at the Florida spaceport.
“It was bittersweet having to dismantle MLP-2,” said John Giles, Exploration Ground Systems crawler transporter operations manager. “However, it allows us to make room for newer, more advanced assets to support Artemis missions that will return humans to the Moon and beyond.”
Mobile launcher platforms were used for shuttle missions lifting off from Launch Complex 39A and 39B. These structures did not require a tower since the launch pad had a tower and rotating service structure to allow access to the vehicle.
Since the retirement of the shuttle program, the historic Launch Complex 39A, once the site of Apollo and Saturn V missions, was leased to SpaceX and upgraded to support commercial launches carrying cargo and astronauts into space.
Launch Complex 39B also has changed with the times. It began as an Apollo era structure, was converted for shuttle launches, and now is a clean pad ready to support the Space Launch System (SLS) rocket, carrying the Orion spacecraft as the agency returns to the Moon. When SLS lifts off from pad 39B carrying Orion for the Artemis I mission, it will use the new, advanced mobile launcher that comes with a built-in tower.
Click here to watch a time-lapse video of the MLP-2 demolition.
Engineers with Exploration Ground Systems and contractor Jacobs successfully completed the Umbilical Release and Retract Test on Sept. 19 inside the Vehicle Assembly Building (VAB) at NASA’s Kennedy Space Center in preparation for the Artemis I mission.
The umbilicals will provide power, communications, coolant, and fuel to the rocket and the Orion spacecraft while at the launch pad until they disconnect and retract at ignition and liftoff.
“Previous testing at the Launch Equipment Test Facility and in the VAB refined our designs and processes and validated the subsystems individually, and for Artemis I, we wanted to prove our new systems would work together to support launch,” said Jerry Daun, Jacobs Arms and Umbilical Systems Operations Manager.
“This test is important because the next time these ground umbilical systems are used will be the day of the Artemis I launch,” said Scott Cieslak, umbilical operations and testing technical lead.
Teams will continue conducting tests inside the VAB before transporting the Orion spacecraft to the assembly building and stacking it atop the SLS, completing assembly of the rocket for the Artemis I mission.
“It was a great team effort to build, and now test, these critical systems,” said Peter Chitko, arms and umbilicals integration manager. “This test marked an important milestone because each umbilical must release from its connection point at T-0 to ensure the rocket and spacecraft can lift off safely.”
Artemis I will be the first integrated test of the SLS and Orion spacecraft. In later Artemis missions, NASA will land the first woman and the first person of color on the surface of the Moon, paving the way for a long-term lunar presence and serving as a steppingstone on the way to Mars.
Ahead of the Artemis I lunar-bound mission, teams at NASA’s Kennedy Space Center joined the launch abort tower to the Orion spacecraft on July 23. Working inside the spaceport’s Launch Abort System Facility, engineers and technicians with Exploration Ground Systems and primary contractor, Jacobs, lifted the system above the spacecraft and coupled it with the crew module.
The launch abort system is designed to protect astronauts if a problem arises during launch by pulling the spacecraft away from a failing rocket. Although there will be no crew Artemis I, the launch abort system will collect flight data during the ascent to space and then jettison from the spacecraft.
Next, teams will install four ogives – the protective panels that shield the upper portion of the spacecraft during its entry into orbit. Once final checkouts are complete, Orion will be integrated with the Space Launch System rocket.
The Orion spacecraft for the Artemis I mission recently completed fueling and servicing checks while inside the Multi-Payload Processing Facility at NASA’s Kennedy Space Center in Florida. The capsule has now made it to its next stop on the path to the pad – the spaceport’s Launch Abort System Facility.
Crowning the spacecraft with its aerodynamic shape, the launch abort system is designed to pull crew away to safety from the Space Launch System (SLS) rocket in the event of an emergency during launch. This capability was successfully tested during the Orion Pad Abort and Ascent Abort-2 tests and approved for use during crewed missions.
Teams with Exploration Ground Systems and contractor Jacobs will work to add parts of the launch abort system onto the spacecraft. Technicians will install four panels that make up the fairing assembly and protect the spacecraft from heat, air, and acoustic environments during launch and ascent. A launch tower will top the fairing assembly to house the pyrotechnics and a jettison motor. The system will also be outfitted with instruments to record key flight data for later study.
With successful demonstration of the system during previous tests, the abort motor that pulls the spacecraft away from the rocket and attitude control motor that steers the spacecraft for a splashdown during an abort will not be functional for the uncrewed Artemis I mission. The jettison motor will be equipped to separate the system from Orion in flight once it is no longer needed, making Orion thousands of pounds lighter for the journey to the Moon.
Launching in 2021, Artemis I will be a test of the Orion spacecraft and SLS rocket as an integrated system ahead of crewed flights to the Moon. Under Artemis, NASA aims to land the first woman and first person of color on the Moon and establish long-term lunar exploration.
The ICPS’s RL 10 engine is housed inside the launch vehicle stage adapter, which will protect the engine during launch. The adapter connects the rocket’s core stage with the ICPS, which was built by Boeing and United Launch Alliance.
The ICPS will fire its RL 10 engine to send the Orion spacecraft toward the Moon. Its European-built service module will provide the power to take the spacecraft on a journey tens of thousands of miles beyond the Moon.
Before attaching the Orion spacecraft to the rocket, teams will conduct a series of tests to assure all the rocket components are properly communicating with each other, the ground systems equipment, and the Launch Control Center.
The ICPS moved to the VAB on June 19, after technicians in the center’s Multi-Payload Processing Facility completed servicing the flight hardware inside.
Launching in 2021, Artemis I will be an uncrewed flight test of the Orion spacecraft and SLS rocket as an integrated system ahead of missions with astronauts. Under Artemis, NASA aims to land the first woman and first person of color on the Moon and establish a long-lasting presence on and around the Moon while preparing for human missions to Mars.
The adapter is the cone shaped piece that connects the rocket’s core stage and interim cryogenic propulsion stage (ICPS), which will provide the Orion spacecraft with the additional thrust needed to travel tens of thousands of miles beyond the Moon. Up next, the ICPS will be lifted from the VAB floor onto the stage adapter.
Launching in 2021, Artemis I will be an uncrewed flight test of the Orion spacecraft and SLS rocket as an integrated system ahead missions with astronauts. Through the series of Artemis missions, NASA aims to land the first woman and first person of color on the Moon and establish a long-lasting presence on and around the Moon while preparing for human missions to Mars.
The core stage of the Space Launch System (SLS) rocket for NASA’s Artemis I mission has been placed on the mobile launcher in between the twin solid rocket boosters inside the Vehicle Assembly Building (VAB) at NASA’s Kennedy Space Center. The boosters attach at the engine and intertank sections of the core stage. Serving as the backbone of the rocket, the core stage supports the weight of the payload, upper stage, and crew vehicle, as well as carrying the thrust of its four engines and two five-segment solid rocket boosters.
After the core stage arrived on April 27, engineers with Exploration Ground Systems and contractor Jacobs brought the core stage into the VAB for processing work and then lifted it into place with one of the five overhead cranes in the facility.
Once the core stage is stacked alongside the boosters, the launch vehicle stage adapter, which connects the core stage to the interim cryogenic propulsion stage (ICPS), will be stacked atop the core stage and quickly followed by the ICPS.
Artemis I will be an uncrewed test of the Orion spacecraft and SLS rocket as an integrated system ahead of crewed flights to the Moon. Under the Artemis program, NASA aims to land the first woman and first person of color on the Moon in 2024 and establish sustainable lunar exploration by the end of the decade.
The Orion spacecraft receives another iconic NASA “worm” logo ahead of the Artemis I mission. On April 28 teams with the agency’s Exploration Ground Systems and lead contractor Jacobs completed painting the retro insignia on the outboard wall of the spacecraft’s crew module adapter (CMA) – the piece of hardware connecting the crew module to the European-built service module – inside the Multi-Payload Processing Facility (MPPF) at NASA’s Kennedy Space Center in Florida.
While a decal of the historic logo was added to the underside of the CMA in September 2020, having it painted on the siding of the spacecraft will make it visible as the spacecraft is poised atop the Space Launch System (SLS) rocket, awaiting liftoff from Kennedy’s Launch Pad 39B.
The worm logo was officially introduced in 1975, retired in 1992, and then made a comeback in 2020, just as NASA entered a new era of human spaceflight. In addition to its appearance on the CMA, the bright red logo also was painted on the SLS twin solid rocket boosters in August 2020.
The Orion spacecraft and Interim Cryogenic Propulsion Stage (ICPS) – the upper stage of the rocket responsible for sending Orion on its journey around the Moon – are currently being fueled and serviced in the MPPF. Once fueling is complete, Orion will move to the Launch Abort System Facility for integration of its launch abort system, while the ICPS will move to the Vehicle Assembly Building to be stacked on the mobile launcher.
Artemis I will be the first integrated test of SLS and Orion and will pave the way for landing the first woman and first person of color on the lunar surface. The mission will be a stepping stone for deep space exploration, leading the agency’s efforts under the Artemis program for a sustainable presence on the Moon and preparing for human missions to Mars.
Click here for a video of the logo being added to the CMA.
Stacking is complete for the twin Space Launch System (SLS) solid rocket boosters for NASA’s Artemis I mission. Over several weeks, workers used one of five massive cranes to place 10 booster segments and nose assemblies on the mobile launcher inside the Vehicle Assembly Building (VAB) at NASA’s Kennedy Space Center in Florida. Engineers with Exploration Ground Systems placed the first segment on Nov. 21, 2020, and continued the process until the final nose assembly was placed on March 2.
Prior to the arrival of the core stage, the team will finish installing electrical instrumentation and pyrotechnics, then test the systems on the boosters. When the SLS core stage arrives at Kennedy, technicians will transport it to the VAB and then stack it on the mobile launcher between the two boosters.
The SLS will be the most powerful rocket in the world, producing up to 8.8 million pounds of thrust during its Artemis I launch.
“Seeing the Space Launch System solid rocket boosters stacked completely on the Mobile Launcher for the first time makes me proud of the entire team especially the Exploration Ground Systems crew at Kennedy who are assembling them and also the teams at Marshall and Northrop Grumman who designed, tested and built them,” said Bruce Tiller, the SLS boosters manager at NASA’s Marshall Space Flight Center. “This team has created the tallest, most powerful boosters ever built for flight, boosters that will help launch the Artemis I mission to the Moon.”
Artemis I will be an uncrewed test of the Orion spacecraft and SLS rocket as an integrated system ahead of crewed flights 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.