Raumfahrt - Startvorbereitung von SLS rocket Artemis 3 mission -Update-4

17.07.2026

How NASA’s Artemis III Lander Test Will Pave Way for Moon Landings

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Before Artemis astronauts land on the Moon’s surface in 2028, NASA will conduct the Artemis III demonstration mission in 2027, allowing teams on Earth and in orbit to practice rendezvous and docking operations between commercial human landing systems and the Orion spacecraft. Data from that mission, along with future uncrewed demonstration missions at the Moon, will support astronaut safety and mission success for crewed lunar landings.

NASA is working with two American companies to develop the human landing systems that will safely transport astronauts from lunar orbit to the Moon’s surface and back for future Artemis missions. For Artemis III, both SpaceX and Blue Origin will fly test versions, or test articles, of the crewed landers that will be used for future Moon landings. The lander test articles will launch by commercial rockets, while the Artemis III crew will launch to low Earth orbit in Orion atop the agency’s SLS (Space Launch System) rocket.

Stage setting for crewed flights

NASA and the human landing system providers have been working closely together to plan and determine capabilities for the Artemis III mission. With missions fast approaching, both SpaceX and Blue Origin are optimizing hardware availability and capability. SpaceX plans to use the company’s latest version of Starship and basis of the future Starship HLS, called Version 3, while Blue Origin will test their planned HLS crew cabin, allowing each company to apply lessons learned prior to uncrewed and crewed missions on the Moon.

“Each human landing system provider has taken a different approach to the Artemis III mission,” said Steve Creech, program manager, Human Landing System Program, NASA’s Marshall Space Flight Center in Huntsville, Alabama. “Ultimately, SpaceX and Blue Origin have put forward a list of aggressive objectives and goals intended to complement upcoming uncrewed demonstration missions at the Moon so that we can gain both understanding and confidence in the spacecraft and launch vehicles prior to a crewed landing. The lander prototype designs will inform future development efforts and will continue to mature over the next year.”

For the Artemis III mission, the Blue Moon test lander will be based on Blue Origin’s current architecture for its Mark 2 crew lander, incorporating all the major avionics and flight software and control systems to ensure flight operations from this demonstration mission can directly translate to crewed lunar flights. Up to two crew members, donning orange Orion crew survival system suits, will open the hatch to enter the Blue Origin test lander. The production hardware must incorporate many of the same systems and subsystems, including an Environmental Control and Life Support System (ECLSS), a crew cabin, and avionics.

 

The Blue Origin lander also will fly with an instrumented lunar surface spacesuit mass simulator. Like the suited “Moonikin” manikin that flew aboard Orion during the uncrewed Artemis I test flight, the low-fidelity spacesuit mass simulator will provide real-time feedback about the environment within the Blue Moon crew cabin.

SpaceX’s Starship lander test article will use a Starship Version 3, currently in production and testing, with an added docking system installed on the nose of the 171-foot (52-m) spacecraft, enabling NASA and SpaceX to evaluate how the entire integrated stack of Orion and the Starship test lander interact. NASA and SpaceX are identifying controllability and communications tests for the Artemis III mission. Astronauts will not enter the Starship test lander during Artemis III.

Launch cadence

NASA, SpaceX, and Blue Origin will launch three of the world’s most powerful rockets within a short timeframe of one another, exercising ground processing, launch crews, and facilities as well as control centers, networking, and data exchange at key sites across the country during two separate, back-to-back rendezvous and docking maneuvers between Orion and the lander test articles, before a safe splashdown of the Artemis III crew in Orion.

“Artemis III will be a highly choreographed dance with a demanding launch sequence across multiple launch pads and equally demanding mission operations for our ground and flight crews, making it one of the most complex and ambitious missions NASA has ever undertaken,” said Jeremy Parsons, Artemis program manager. “The demonstration mission will set the stage before our next giant leap. NASA’s expertise in systems engineering and integration, as well as launch and mission operations in low Earth orbit, will bring the mission together.”

For future crewed missions to the Moon, NASA and one of the commercial lander partners will execute a “dual launch campaign,” prepositioning the lander in orbit to await a crewed Orion, launched on SLS. Launching the three rockets in succession of one another for Artemis III offers a unique opportunity to practice launch processing and operations.

Blue Origin’s lander test article is planned to launch first and will be able to loiter in space for up to 30 days, allowing for checkouts in orbit prior to the launch of SLS and Orion from Launch Complex 39B at NASA’s Kennedy Space Center in Florida. The Blue Origin test article will launch at a set trajectory to meet a designated “parking” orbit for these systems checks.

 

Artemis III will be a highly choreographed dance with a demanding launch sequence across multiple launch pads and equally demanding mission operations for our ground and flight crews, making it one of the most complex and ambitious missions NASA has ever undertaken.

Jeremy Parsons

JEREMY PARSONS

Artemis program manager

Following the completion of Blue Origin’s rendezvous and docking operations testing  and the Artemis III crewed launch on SLS, SpaceX will launch its Starship lander test article to rendezvous with Orion and its crew for its phase of on-orbit testing.

Throughout the Artemis III mission, Orion will fly in a circular orbit. All three rockets will have more launch opportunities than are available for a lunar mission and will be able to reach the designated mission altitude in a single launch.

Docking operations

During docking and undocking operations, Orion and the Artemis III crew will use the lander test articles as the targets, while Orion will operate as the chaser spacecraft. This is the same configuration planned for future crew landing mission to the Moon.

NASA will ensure both test landers are mission ready and crew safe prior to Artemis III. These verifications will be based on functional and performance requirements for the test lander designs and hazard controls for hardware and software, ensuring the Artemis III astronauts inside Orion are safe throughout both docking phases of the mission.

SpaceX and Blue Origin have already tested their docking capabilities for their respective landers on the ground. SpaceX’s docking capability was qualified in 2023; Blue Origin conducted development ground testing on its pressurized docking system earlier this year.

A key difference between the docking capabilities of both lander test articles will be the location of docking. Orion will dock along the side of the Blue Moon test lander, adjacent to the crew cabin. Later, Orion will dock nose-to-nose with the giant SpaceX test lander.

Software testing between spacecrafts will help demonstrate that the commercial human landing system prototypes and Orion can meet at a precise time and location in space. When Orion docks with the Blue Moon test lander, the Orion spacecraft’s software will control the docked spacecraft. Meanwhile, the SpaceX test article will control the docked spacecraft for the second portion of the mission. During the docking phases, teams with NASA and the commercial partners will be able to test hardware and software interoperability, as well as dynamics of how the integrated lander-Orion spacecraft moves in space.

Through the Artemis program, NASA will send astronauts to explore the Moon for scientific discovery, economic benefits, and to build the foundation for the first crewed missions to Mars – for the benefit of all.  

Quelle: NASA

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Update: 18.07.2026

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NASA Taps SpaceX’s Starlink to Deliver Artemis III Imagery from Orion

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An artist’s concept of the Orion spacecraft orbiting Earth.

Credit: NASA

NASA has selected SpaceX to deliver laser communications capabilities for next year’s Artemis III mission, enabling the agency to provide a front row seat for viewers from the Orion spacecraft as four astronauts test rendezvous and docking capabilities between Orion and test versions of commercial human landing systems needed to return astronauts to the Moon in 2028. 

To supplement Orion’s existing communications system, NASA will install two of SpaceX’s Starlink mini laser terminals – the same laser crosslink technology that SpaceX developed for its Starlink constellation – on the exterior of the spacecraft to downlink 4K imagery and video to the Mission Control Center at NASA’s Johnson Space Center in Houston.  

Laser, or optical, communications systems use invisible infrared light to transmit more data in a single downlink than traditional radio frequency systems.  

NASA previously demonstrated an optical communications system during the Artemis II mission, successfully transmitting high-definition video, flight procedures, photos, engineering and science data, and voice communications from Orion to Earth over laser signals when the spacecraft had line of sight with ground terminals.

SpaceX first demonstrated laser communications capabilities for NASA as part of a funded Space Act Agreement to develop and demonstrate commercial relay systems during the Fram2 human spaceflight mission in 2025. The Starlink mini lasers that will be added to Orion are based on the more than 25,000 lasers currently operating on-orbit to interconnect the Starlink constellation. The company has utilized the Starlink satellite network for video and telemetry on its Starship flight tests, providing real-time data across all phases of flight. 

Facilitated through a partnership with the SCaN (Space Communications and Navigation) Division’s Communications Services Project, the Artemis III laser communications demonstration builds upon the agency’s existing agreement with SpaceX, advancing NASA’s broader strategy to commercialize satellite relay services for missions operating near-Earth. 

Quelle: NASA

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Update: 23.08.2026

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Isaacman says Artemis III could launch from Kennedy Space Center in June 2027

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NASA Administrator Jared Isaacman said Friday that the agency’s Artemis III mission could launch from Kennedy Space Center as early as June 2027 — a fast-approaching target.

The Greater Palm Bay Chamber of Commerce 8th Space Coast Symposium hosted Aug. 21 at the Radison Conference Center in Cape Canaveral brought together space industry leaders to discuss the latest economic scene on Florida’s Space Coast. Much discussion focused on the workforce in Brevard County and the continued growth of the space industry.

Congressman Mike Haridopolos, a Republican who represents Brevard, moderated the conversation with Isaacman, saying he could give the NASA leader “honorary citizenship” in Brevard County. As NASA’s Artemis return to the moon program ramps up, Isaacman is said to be spending more time on the Space Coast.

Isaacman acknowledged the deep history of the rightfully named "Space Coast", noting the public beaches of Brevard have long been gathering spots to watch rockets launch into space.

“The sight of rockets crossing Cocoa Beach has certainly sparked inspiration for more than a few engineers and astronauts,” Isaacman said.

And it was just back on April 1 that Artemis II inspired the world as four astronauts took off from Kennedy Space Center on a mission around the moon, the first in more than 50 years. On Friday, Aug. 28, President Trump will award the Congressional Space Medal of Honor to the crew.

“Now Reid, Victor, Christina, and Jeremy reminded the world when America commits to big, bold endeavors, that there is nothing we cannot achieve,” said Isaacman, referencing the Artemis II crew.

Isaacman went on to say the Artemis III SLS (Space Launch System)rocket will roll out to Kennedy Space Center Pad 39B for wet dress test before the end of the year, stating a liftoff is planned for as early as June 2027.

While the SLS rocket is currently being stacked inside the Vehicle Assembly Building at KSC, little is known about a major component of the mission: the status of the landers.

The mission is designed as a test of Orion's capability to dock in space with the lunar landers. It calls for three major rockets to lift off, SLS carrying Orion, Blue Origin's New Glenn and SpaceX's Starship. The plan: Have both a SpaceX Starship and Blue Origin Mark 2 lunar lander dock with the Orion spacecraft, which will be carrying four astronauts, in low Earth orbit.

 

While Blue Origin is still rebuilding its Launch Complex 36 after its New Glenn rocket exploded during a test in May, SpaceX’s Starship has not yet gone orbital during test flights out of Texas.  

NASA’s long-term goal is to set up a moon base, which would be a massive endeavor between NASA and private industry.

Artemis III was originally set to be the awaited moon landing. However, in an attempt to launch SLS on an annual basis, and test the landers closer to home before the actual moon landing, the return to the moon was delayed to Artemis IV.

And with the recent White House National Space Transportation Policystating launch ranges should be able to support upwards of 1000 launches and reentries per year by 2030, Isaacman said it's time to get ready for many more rocket launches in the future. Most of these would come from private companies, such as SpaceX, Blue Origin, United Launch Alliance, Relativity, and Stoke.  

“You thought every other day was a lot. I think things are only going to get bigger out here on the Space Coast," he said.

Quelle: Florida Today

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Update: 29.08.2026

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NASA Starts Artemis III Engine Install; Boosters, Crew Training Advance

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Technicians prepare to transfer the #2 RS-25 SLS (Space Launch System) rocket engine (front) to the work stand with the #3 engine (back) for integration with the Artemis III core stage rocket on Tuesday, Aug. 25, 2026, inside the Vehicle Assembly Building at NASA’s Kennedy Space Center in Florida.
NASA/Clayton Rougelot

Technicians at NASA’s Kennedy Space Center in Florida began the installation of the four RS-25 engines in the core stage of the agency’s SLS (Space Launch System) rocket that will launch the Artemis III crew next year.

The milestone on Aug. 24 marks the next phase of core stage integration following the mating of the engine section to the top four-fifths of the stage earlier this summer. Inside High Bay 2 at the spaceport’s Vehicle Assembly Building (VAB), teams will continue installing the remaining engines, as well as the propulsion and electrical systems throughout the stage.

Weighing in at approximately 7,700 pounds, each engine produces nearly 500,000 pounds of thrust. All four engines are located at the base of the SLS and are integrated inside the engine section. Built to withstand the extreme conditions during launch, this section protects the engines from severe temperatures. During ascent, the engines fire continuously for more than eight minutes, consuming propellant from the core stage’s two massive propellant tanks at a rate of approximately 1,500 gallons per second.

Each RS-25 engine carries a unique serial number that traces its detailed flight history. The four engines assigned to Artemis III, including E2054, E2057, E2048, and E2052, previously powered multiple shuttle missions. Engine 2048 helped power NASA astronaut Randy Bresnik’s previous mission on space shuttle Atlantis during the STS-129 mission. The engine also powered Space Shuttle Discovery on STS-95 in 1998, which was the mission that returned 77-year-old space pioneer U.S. Sen. John Glenn to orbit, making him the oldest person to fly in space at the time.

Technicians also continue to integrate the twin solid rocket booster motor segments atop the mobile launcher inside the VAB. Teams began stacking the segments in early July and are now more than halfway complete after streamlining processes and procedures learned from previous Artemis launches.

Progress on the Orion spacecraft continues after the recent integration of the crew and service modules. Technicians recently installed the umbilical connector, which bridges the electrical, data, and fluid systems between the two modules, and installed its electrical connectors and fluid lines. Teams powered on the spacecraft for the first time since joining the two components to ensure electrical connectivity through the umbilical mechanism and that the communications of the subsystems between the crew and service module work as planned.

Crew training underway

After being assigned to the Artemis III mission on June 9, NASA astronauts Bresnik, Andre Douglas, Frank Rubio, and ESA (European Space Agency) astronaut Luca Parmitano began an intensive training flow that covers Orion systems and operations, science objectives, leadership and team‑building exercises, as well as joint training with commercial human landing system providers.

From left, Artemis III crew members, NASA astronauts Andre Douglas and Randy Bresnick, ESA (European Space Agency) astronaut Luca Parmitano, and NASA astronaut Frank Rubio participate in training at NASA’s Johnson Space Center in Houston on Wednesday, Aug. 19, 2026.
NASA/Bill Stafford

The crew’s training is organized around major phases of the mission, including ascent, orbit and rendezvous operations, entry, and both pre‑ and post‑landing readiness.

Crew members are working in the Orion mockup at NASA’s Johnson Space Center in Houston, practicing daily spacecraft operations, such as mealtime routines, using equipment like the food warmer and potable water dispenser. They also are refining their camera skills to capture and share imagery from their mission in low Earth orbit.

The crew recently completed an introductory water survival class focused on hardware used during off‑nominal landings, along with a post‑landing emergency exiting course that introduced splashdown procedures and initial post‑landing conditions.

This week in NASA’s Neutral Buoyancy Lab, they donned their spacesuits and practiced exiting Orion in an upright configuration. The practice allowed the crew to demonstrate the proper use of their Orion Crew Survival System suits, survival hardware, life raft, and more.

The Artemis III crew also began integrated simulations with the flight control team, including the first simulation with the four crew members together. In these sessions, crew members and controllers rehearse mission timelines and respond to a variety of situations they could face in space, strengthening coordination, decision‑making, and procedures.

Quelle: NASA

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Update: 9.09.2026

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Artemis III SLS stacking advances as Orion results confirm trajectory fix

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Teams at NASA’s Kennedy Space Center have pushed Artemis III Space Launch System hardware another step forward, stacking the next pair of solid rocket booster segments inside the Vehicle Assembly Building while Core Stage-3 engine work and early Artemis IV processing also continue.

The progress comes as NASA’s Aerospace Safety Advisory Panel (ASAP) reviewed post-flight analysis of Orion’s Artemis II heat shield, confirming that a modified reentry profile sharply reduced the Avcoat char-loss seen after Artemis I.

Four of five booster segments now stacked

NASA completed mating of the center segments on the twin five-segment SLS solid rocket boosters for Artemis III. Teams have since begun stacking the forward center segments on top of those, leaving only the forward assemblies to complete each booster stack.

Photographs from the base of Mobile Launcher 1 looking up the boosters also show the Tail Service Mast Umbilicals missing their quick-disconnect plates.

Officials had previously indicated that leaks found on those interfaces during Artemis II processing could prompt a design change for a firmer seal.

The missing plates may reflect that work, or they may simply be part of the post-Artemis II refurbishment of the launcher.

Either way, the configuration is likely to become clearer as Artemis III stacking continues.

Inside the VAB, teams have also completed installation of all four RS-25 engines on Core Stage-3.


That milestone opens the remaining outfitting work needed before the stage can be transferred onto Mobile Launcher 1 between the two boosters.

Artemis IV hardware arrives as well

While most of Core Stage-4 remains in production at the Michoud Assembly Facility in New Orleans, its engine section has been in processing at Kennedy for years. This past week, NASA’s Pegasus barge delivered the last major piece still needed for that section: the boattail.

The boattail attaches to the engine-section barrel and provides aerodynamic support for the RS-25 engines in flight. Its arrival keeps Artemis IV hardware moving in parallel with Artemis III stacking. NASA is targeting a 2028 lunar landing on Artemis IV, a schedule that will require continued hardware flow of this kind.

Artemis II heat shield: fewer than 10 percent of Artemis I’s char-loss sites

Artemis II lifted off April 1, becoming the first crewed Artemis flight and the first human mission around the Moon since 1972. It flew with the same class of Avcoat heat shield already installed when post-flight inspection of Artemis I revealed unexpected char loss.
The issue was not a large void or obvious gap. It was permeability. During reentry, Avcoat heats, gasifies, and ablates. Heat also soaks deeper into the material, so lower layers continue generating gas while the outer layers are still in the same process. If those outer layers are too permeable, gas from below cannot escape. Pressure builds and can blow out the upper layers, a process known as spallation, or char loss.

Artemis I used a skip reentry: Orion dipped into the atmosphere, shed a large amount of speed, then used lift to skip back out before the final descent and Pacific splashdown.

That profile created two problems for the heat shield. The longer exposure gave more time for gas to build in deeper layers. The skip also interrupted gasification at the outer surface while residual heat kept the inner layers generating gas that could no longer vent.

NASA chose not to remanufacture the already-installed Artemis II heat shield, which would have delayed the mission. Instead, it flew a non-skip, steeper reentry. That path imposed higher heat loads but kept heat from soaking as deep, and it shortened the time available for pressure to build.

Recovery images made the difference visible immediately. After nearly five months of analysis, NASA presented the results to the Aerospace Safety Advisory Panel.

Panel member Paul Hill, a former NASA flight director and MOD Director, said Artemis I’s heat shield had more than 100 spallation sites. In contrast, Artemis II had only nine, a reduction of more than 90 percent from changing the entry profile alone.

The trade is operational. Skipping the skip shortens the distance from entry interface to splashdown and reduces the area NASA can target, cutting mission-planning flexibility.

To restore skip-entry capability, NASA has changed Avcoat manufacturing so that the material is more permeable and can vent gases rather than trap them.

That process change will fly first on Artemis III next year and will be used on subsequent Orion heat shields.

The VAB work now underway is the next test of whether that hardware cadence can keep Artemis III and IV on their intended paths.

Featured Image: NASA.

 

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