Another Update on the Third SLS Core Stage Booster...

NASA / Sam Lott

NASA Technicians Weld Final Panel for New SLS Hardware (Photo Release)

These images show the spacer that will be used on NASA’s Space Launch System (SLS) for the Artemis III mission.

At NASA’s Marshall Space Flight Center in Huntsville, Alabama, technicians complete the eighth and final friction stir weld on the barrel section. With the barrel now removed from the Vertical Weld Tool, inspections are underway.

The next major milestone will be the installation of the top and bottom rings.

The spacer will take the place of the interim cryogenic propulsion stage (ICPS) on Artemis III, with the ICPS reassigned for use on the Artemis IV mission.

Source: NASA.Gov

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NASA / Sam Lott

The Latest Update on the Third SLS Core Stage Booster...

NASA / Ben Smegelsky

Artemis III RS-25 Engine Processing (Photo Release)

All four RS-25 SLS (Space Launch System) rocket engines - built by L3 Harris Technologies - were delivered to NASA’s Vehicle Assembly Building at Kennedy Space Center in Florida for the Artemis III mission, on Tuesday, July 21, 2026.

The engines arrived from NASA’s Stennis Space Center near Bay St. Louis, Mississippi and will be installed in the SLS rocket's core stage for integration atop the Mobile Launcher.

During Artemis III the engines will propel the Orion spacecraft, carrying four astronauts, into low-Earth orbit - providing over two million pounds of thrust at liftoff.

Source: NASA.Gov

Nation #70 Has Joined NASA's Moon Exploration Initiative...

NASA

NASA Welcomes Mauritius as 70th Artemis Accords Signatory (News Release)

The Republic of Mauritius has officially joined the global coalition committed to responsible space exploration, becoming the newest signatory and seventh African country to join the Artemis Accords. NASA’s Deputy Administrator Matt Anderson contributed video remarks for a signing ceremony on Friday, in the island nation’s city of Ébène.

“We are honored to welcome Mauritius to the Artemis Accords community and look forward to working together in the years ahead,” said Anderson. “Together, we are creating the foundation for future exploration while ensuring that space remains peaceful, accessible and beneficial for all. America will return to the Moon and ignite the Golden Age of exploration and discovery. That work requires capable partners and a shared commitment to responsible exploration.”

Mauritius’ Permanent Secretary at the Ministry of Tertiary Education, Science and Research Navindsing Jugmohunsing signed the Artemis Accords on behalf of the country. U.S. Deputy Assistant Secretary of State for African Affairs Sarah Troutman and U.S. Chargé d’Affaires to Mauritius Craig Halbmaier were present to witness the signing.

“The accession of Mauritius to the Artemis Accords marks a defining chapter in our New Space journey,” said Jugmohunsing. “As a Small Island Developing State in the Indian Ocean, we are committed to ensuring that space serves humanity by protecting our oceans and coastlines and amplifying the voices of nations like ours. Mauritius stands ready to help shape the future of space governance while unlocking new opportunities for innovation and partnership.”

NASA first engaged with Mauritius through its early global mapping efforts, owing to the nation’s strategic location. Between 1965 and 1980, NASA used several satellite missions to collect global measurements of Earth’s size and shape. As part of that work, NASA sent teams to Mauritius and other international tracking stations that supported satellite photography for geodetic analysis.

The teams' observations strengthened the navigation technologies used from Apollo to Artemis and helped lay the foundation for the partnership reaffirmed today by the Artemis Accords.

In 2020, NASA and the Department of State joined with seven other founding nations to establish the Artemis Accords, responding to the growing interest in lunar activities by both governments and private companies. They introduced the first set of practical principles aimed at enhancing the safety and coordination between like-minded nations as they explore the Moon, Mars and beyond, committing nations to:

-- explore peaceably and transparently
-- render aid to those in need
-- enable access to scientific data
-- ensure that activities do not interfere with those of others
-- preserve historically significant sites and artifacts by developing best practices

More countries are expected to sign the Artemis Accords in the months and years ahead, as NASA continues its work to establish a safe, peaceful and prosperous future in space.

Source: NASA.Gov

Nation #69 Has Joined NASA's Moon Exploration Initiative...

NASA

NASA Welcomes Serbia as Newest Artemis Accords Signatory (News Release)

The Republic of Serbia signed the Artemis Accords on Thursday during a ceremony hosted by NASA at the agency’s headquarters in Washington, becoming the 69th nation to join a large community of like-minded nations committed to the peaceful, transparent and responsible exploration of space.

“Serbia’s connection to NASA reaches back to the Apollo program, when the work of Serbian engineers helped make some of humanity’s greatest achievements in space possible,” said NASA Deputy Administrator Matt Anderson. “Among them was Milojko ‘Mike’ Vučelić, who was awarded the Presidential Medal of Freedom for the critical role he played in bringing the Apollo 13 crew safely home. Their story stands as a reminder that the greatest achievements in space are made possible by talented people working together.”

The broader team of Serbian American engineers played key roles during the Apollo era across systems engineering, propulsion, power systems, spacecraft docking, electronics reliability, and mission coordination. Their expertise supported critical functions ranging from lunar landing analysis to safe spacecraft docking.

Serbia’s Minister of Foreign Affairs Marko Đurić signed the Artemis Accords on behalf of the country.

“The great beyond has always inspired humanity to achieve its greatest feats — from the Roman ‘per aspera ad astra’ to Norman Vincent Peale’s belief that if we aim for the Moon, we will at least land among the stars,” said Đurić. “Those words feel especially fitting today. We come from a nation of great minds like Nikola Tesla and Milutin Milanković, but also from the legacy of David Vujic, one of the pioneers of the Apollo missions and a member of the ‘Serbian Seven,’ a group of engineers and technicians whose contributions to NASA helped make the Moon landing possible. In that spirit, we owe it to both our brave ancestors and our children to keep pushing toward new frontiers — to explore, to inspire one another, and to dare even greater things.”

By signing the Artemis Accords, nations open the door to opportunities for future lunar exploration with NASA, such as providing science and technology payloads for the U.S.-led Moon Base and CubeSats for upcoming Artemis missions, advancing humanity’s return to the Moon, and shaping the Golden Age of space exploration and innovation.

Ambassador of the Republic of Serbia to the United States Dragan Šutanovac; State Secretary for Serbia’s Ministry of Science, Technological Development and Innovation Marija Gnjatović; and U.S. Department of State Assistant Secretary for Oceans and International Environmental and Scientific Affairs Wesley Brooks all participated in Serbia’s signing ceremony.

In 2020, NASA and the Department of State joined with seven other founding nations to establish the Artemis Accords, responding to the growing interest in lunar activities by both governments and private companies. They introduced the first set of practical principles aimed at enhancing the safety and coordination between nations as they explore the Moon, Mars and beyond, committing nations to:

-- explore peaceably and transparently
-- render aid to those in need
-- enable access to scientific data
-- ensure that activities do not interfere with those of others
-- preserve historically significant sites and artifacts by developing best practices

More countries are expected to sign the Artemis Accords in the months and years ahead, as NASA continues its work to establish a safe, peaceful and prosperous future in space.

Source: NASA.Gov

The Latest Update on the Third SLS Core Stage Booster...

NASA

Artemis III RS-25 Engine Processing at KSC (Photo Release)

Teams at NASA’s Kennedy Space Center in Florida offload the third of four RS-25 SLS (Space Launch System) rocket engines built by L3 Harris Technologies for the agency's Artemis III mission on Tuesday, July 14, 2026, inside the spaceport’s Vehicle Assembly Building.

The SLS rocket will use four RS-25 engines in the core stage to propel the Orion spacecraft into orbit providing over two million pounds of thrust at liftoff.

As part of the Golden Age of innovation and exploration, NASA will send Artemis astronauts on increasingly difficult missions to explore more of the Moon for scientific discovery and economic benefits, establish an enduring human presence on the lunar surface, and build on our foundation for the first crewed missions to Mars.

Source: NASA.Gov

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NASA

Both SLS SRBs Are Ready to be Fully Assembled on the Mobile Launcher...

NASA / Frank Michaux

Artemis III Booster Stacking Coverage (Photo Release)

The left-hand and right-hand aft assembly solid rocket booster segments for NASA’s Artemis III SLS (Space Launch System) rocket are secured to the Mobile Launcher at the agency’s Vehicle Assembly Building at NASA’s Kennedy Space Center in Florida - on Saturday, July 11, 2026.

The twin boosters, manufactured by Northrop Grumman in Utah, will provide more than 75 percent of the SLS rocket’s total thrust at launch.

The Artemis III mission will launch astronauts in the Orion spacecraft on top of the SLS rocket to test rendezvous and docking capabilities between Orion and commercial spacecraft needed to land astronauts on the Moon.

Source: NASA.Gov

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NASA / Frank Michaux

The Latest Update on the Fourth SLS Core Stage Booster...

NASA / Eric Bordelon & Michael DeMocker

Artemis IV Liquid Hydrogen Tank Completes Proof Testing (Photo Release)

Crews at NASA’s Michoud Assembly Facility in New Orleans transport the 130-foot-tall liquid hydrogen tank from the proof testing building to the main factory on July 10. The liquid hydrogen tank will form part of the core stage for the SLS (Space Launch System) rocket for the agency’s Artemis IV mission, providing thousands of gallons of super-cold propellant to the rocket engines during launch. Soon, teams with SLS prime contractor, Boeing, will move the tank into the facility’s vertical assembly building for cleaning operations.

The liquid hydrogen propellant tank is one of five major elements that make up the 212-foot-tall SLS rocket stage. The core stage, along with its four RS-25 engines at its base, produce more than two million pounds of thrust to help launch NASA’s Orion spacecraft, astronauts, and supplies beyond Earth’s orbit and to the lunar surface for Artemis.

Source: NASA.Gov

The Third SLS Rocket Has Begun Taking Shape at KSC!

NASA / Ben Smegelsky

Artemis III Booster Stacking Coverage - LH Aft Assembly (Photo Release)

Teams with NASA’s Exploration Ground Systems lowered and secured the left-hand aft assembly solid rocket booster segment for NASA’s Artemis III SLS (Space Launch System) rocket to the Mobile Launcher at the agency’s Vehicle Assembly Building at NASA’s Kennedy Space Center in Florida on Thursday, July 9, 2026.

The twin boosters, manufactured by Northrop Grumman in Utah, will provide more than 75 percent of the SLS rocket’s total thrust at launch.

The Artemis III mission will launch crew in the Orion spacecraft on top of the SLS rocket to test rendezvous and docking capabilities between Orion and commercial spacecraft needed to land astronauts on the Moon.

Source: NASA.Gov

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NASA / Ben Smegelsky

Remembering STS-135: Marking 15 Years Since the Last Space Shuttle Mission Took Flight...

NASA / Bill Ingalls

It was on this day back in 2011 that Atlantis took off from Launch Complex 39A at NASA's Kennedy Space Center in Florida...beginning mission STS-135 to the International Space Station that lasted 12 days, 18 hours, 28 minutes and 50 seconds, and successfully concluded the 30-year space shuttle program. 15 years later, this anniversary is marked by humans finally venturing to the Moon once more on last April's Artemis 2 mission...and NASA gearing up for Artemis 3, an Earth-orbiting test flight that will pave the way for astronauts returning to the lunar surface on Artemis 4.

The time period between 2011 and 2020 (when SpaceX's Demo-2 flight resumed crewed launches from U.S. soil for the first time since STS-135) was marked by delays and uncertainty in America's human spaceflight program. But as of 2026, things are absolutely picking up with mankind moving ever so closer to maintaining a sustainable presence at the Moon, and finally, sending humanity on a much-awaited voyage to Mars. The future of space exploration has never been more promising than this!


NASA

The Latest Update on the Next Orion Capsule...

NASA / Kim Shiflett

Artemis III Crew Module, Heat Shield (Photo Release)

Teams work to complete the installation of the heat shield on the Artemis III Orion spacecraft inside the high bay of the Neil A. Armstrong Operations and Checkout Building at NASA’s Kennedy Space Center in Florida on Monday, July 6, 2026.

Orion's heat shield consists of 186 blocks of an ablative material called Avcoat, with each block meticulously and individually inspected.

The heat shield is responsible for protecting the astronauts from the extreme temperatures as they reenter Earth’s atmosphere at the end of the mission.

Source: NASA.Gov

Nation #68 Has Joined NASA's Moon Exploration Initiative...

NASA

NASA Welcomes Botswana as 68th Artemis Accords Signatory (News Release)

The Republic of Botswana signed the Artemis Accords on Thursday during a ceremony hosted by NASA at the agency’s headquarters in Washington, becoming the sixth African nation to join a growing community of nations committed to the peaceful, transparent and responsible exploration of space.

“It is my privilege to welcome Botswana as the newest signatory of the Artemis Accords,” said NASA Deputy Administrator Matt Anderson. “Today marks an important milestone in our international partnership and in the continued growth of the Artemis community. Botswana joins at an important moment. Earlier this month, we announced the crew of Artemis III and, as we speak, their spacecraft is being assembled as they prepare to play their part in mankind’s greatest adventure.”

Botswana’s Minister of Communications and Innovation David Tshere signed on behalf of the country. U.S. Department of State Senior Advisor for Space Gregory Autry, and Mabedi Ngwenya, acting ambassador of the Republic of Botswana to the United States, also participated in the ceremony.

“Botswana like many countries, we have interest in space exploration, found it important to become a signatory to the Artemis Accords to promote the safe, transparent and sustainable civil space exploration, and to advance international cooperation, and a shared framework for responsible activities in the space,” said Tshere.

This new chapter builds on Botswana’s long history of collaboration with the United States in space-based Earth observation. In the early 1970s, Botswana participated in the satellite program later known as Landsat, joining dozens of other nations in pioneering satellite-based environmental observation. Botswana marked another milestone with the launch of its first Earth observation satellite, Botswana Satellite 1, in March 2025, aboard a SpaceX Falcon 9.

In 2020, the United States, led by NASA and the State Department, joined with seven other founding nations to establish the Artemis Accords, responding to the growing interest in lunar activities by both governments and private companies. The Artemis Accords introduced the first set of practical principles aimed at enhancing the safety and coordination between like-minded nations as they explore the Moon, Mars and beyond.

Signing the Artemis Accords means committing to explore peaceably and transparently, to render aid to those in need, to enable access to scientific data that all of humanity can learn from, to ensure that activities do not interfere with those of others, and to preserve historically significant sites and artifacts by developing best practices for space exploration for the benefit of all.

More countries are expected to sign the Artemis Accords in the months and years ahead, as NASA continues its work to establish a safe, peaceful and prosperous future in space.

Source: NASA.Gov

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NASA / Glenn Benson

Another Update on the Third SLS Core Stage Booster...

NASA

Artemis III RS-25 Engine Processing at KSC (Photo Release)

Teams at NASA’s Kennedy Space Center in Florida offload the second of four RS-25 SLS (Space Launch System) rocket engines built by L3 Harris Technologies for the agency's Artemis III mission on Tuesday, June 23, 2026, inside the spaceport’s Vehicle Assembly Building.

The SLS rocket will use four RS-25 engines in the core stage to propel the Orion spacecraft into orbit providing over two million pounds of thrust at liftoff.

As part of the Golden Age of innovation and exploration, NASA will send Artemis astronauts on increasingly difficult missions to explore more of the Moon for scientific discovery and economic benefits, establish an enduring human presence on the lunar surface, and build on our foundation for the first crewed missions to Mars.

Source: NASA.Gov

The Latest Update on the Third SLS Core Stage Booster...

NASA / Frank Michaux

Artemis III RS-25 Engine Processing at KSC (Photo Release)

Teams at NASA’s Kennedy Space Center in Florida offload the first of four RS-25 SLS (Space Launch System) rocket engines for the agency's Artemis III mission on Tuesday, June 16, 2026, inside the center’s Vehicle Assembly Building.

The SLS rocket will use four RS-25 engines in the core stage to propel the Orion spacecraft into orbit providing over two million pounds of thrust at liftoff.

As part of the Golden Age of innovation and exploration, NASA will send Artemis astronauts on increasingly difficult missions to explore more of the Moon for scientific discovery, economic benefits, establish an enduring human presence on the lunar surface, and to build on our foundation for the first crewed missions to Mars.

Source: NASA.Gov

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NASA / Frank Michaux

The Latest Update on the Fourth SLS Core Stage Booster...

NASA / Eric Bordelon

Artemis IV Liquid Oxygen Tank Moves to Next Phase of Production (Photo Release)

Teams at NASA’s Michoud Assembly Facility in New Orleans use a heavy-lift mobile transport apparatus to move a 51-foot-tall liquid oxygen tank out of the vertical assembly building and into the main rocket factory on June 11. The liquid oxygen tank will form part of the SLS (Space Launch System) rocket for NASA’s Artemis IV mission to the Moon. Next, technicians with Boeing, SLS core stage prime contractor, and NASA will perform dimensional inspections and install internal baffles on the propellant tank before the next phase of production.

The propellant tank will hold more than 196,000 gallons of super-cooled liquid oxygen at launch and is one of five major elements that make up the 212-foot-tall SLS rocket stage. The core stage, along with its four RS-25 engines at its base, produces more than two million pounds of thrust to help launch NASA’s Orion spacecraft, astronauts and supplies beyond Earth’s orbit and to the lunar surface for Artemis.

Source: NASA.Gov

THE ASTRONAUTS FOR ORION'S SECOND CREWED FLIGHT HAVE BEEN REVEALED...

NASA / Bill Stafford

NASA Marches Toward Artemis III Mission in 2027, Names Crew Members (News Release)

Taking another step towards one of the most complex human spaceflight missions in recent history, NASA on Tuesday provided new Artemis III details and announced the four prime crew members and a backup for the test flight. The mission will undertake a series of challenging tests in Earth orbit in 2027, essential for Artemis IV, the first planned crewed mission to the lunar South Pole in 2028.

During Artemis III, the agency’s SLS (Space Launch System) rocket will launch the Orion spacecraft and its crew from NASA’s Kennedy Space Center in Florida to low-Earth orbit. After Orion systems checkouts, the spacecraft will, for the first time, demonstrate rendezvous and docking capabilities with test versions from one, or both, American commercial Human Landing Systems in development by Blue Origin and SpaceX. This highly-choreographed mission includes a dramatic multi-launch campaign of the world’s most powerful rockets, testing integrated hardware between Orion and the landers, including system interfaces, software, propulsion and communications.

Crew assignments are as follows:

-- NASA astronaut Randy Bresnik, commander
-- ESA (European Space Agency) astronaut Luca Parmitano, pilot
-- NASA astronaut Andre Douglas, mission specialist
-- NASA astronaut Frank Rubio, mission specialist

As part of Tuesday’s event, NASA astronaut Bob Hines was named as a backup crew member. The crew will begin training immediately on Orion spacecraft systems, as well as assist in the development and operations of the test versions of Blue Origin and SpaceX landers.

“Today we take another bold step in humanity’s return to the Moon, building on the extraordinary foundation laid by the Artemis II astronauts,” said NASA Administrator Jared Isaacman. “Their achievements reignited global excitement for exploration, and now they pass the torch to the Artemis III team, Randy, Luca, Frank and Andre. Artemis III will demonstrate the power of American innovation and international partnership as we test complex rendezvous and docking operations and advance the technologies that will one day carry us deeper into the Solar System.

“This mission will require the most awe-inspiring coordination of heavy-lift rocket launches in history, drawing on the talent and capability of teams across government and the spaceflight community. The Artemis III astronauts, alongside ESA and our international partners, and the tens of thousands of the best and brightest across the agency and industry, are ushering in a new Golden Age of exploration carrying forward the hopes and dreams of the next generation just as the Apollo astronauts did for so many of us.”

This is also the first time that an ESA astronaut has been assigned to an Artemis mission.

“Artemis III will push the boundaries of spacecraft operations in orbit. Luca’s assignment as pilot reflects the depth of European expertise in human spaceflight and draws on his extensive operational experience in high-pressure situations,” said Josef Aschbacher, ESA’s director general. “At the same time, ESA’s European Service Module will once again provide the critical capabilities that power Orion, demonstrating Europe’s enduring role at the very heart of the Artemis program. The news out of Houston today is a powerful recognition of ESA’s role in enabling humanity’s return to the Moon – and a key advancement in our partnership with NASA. Europeans can take pride in being part of this exciting journey.”

Mission progress

NASA and its partners are making progress preparing for the test flight.

Engineers will connect the Orion crew module and service module this summer and integrate the spacecraft’s docking system, which will fly for the first time. Heat shield testing continues with individual blocks having undergone ultra-sonic inspections and installation onto the heat shield structure.

Rocket processing is also well underway. Technicians for SLS are integrating the engine section to the rest of the core stage ahead of installing the four RS-25 engines this summer. With all solid rocket booster segments now at NASA Kennedy and Mobile Launcher refurbishments on track, rocket stacking is also scheduled to begin this summer.

NASA continues design and fabrication of a spacer that will replace the upper stage on Artemis III.

Blue Origin is developing a crewed lunar version of the company’s Blue Moon lander, while SpaceX is developing a crewed lunar lander version of the company’s Starship, with both companies building test articles for Artemis III. NASA is supporting both lander providers hands-on throughout design, development, testing and evaluation, including sharing agency expertise and capabilities gained from previous missions.

In addition to status updates from NASA and both commercial partners, the agency discussed details during the event about the planned operations for Artemis III, which will support an increased mission cadence, ramp up production, and drive supply chain improvements for the Artemis program.

The Artemis III mission builds on the successful Artemis II flight completed in April and will help the agency prepare to send the first astronauts, Americans, to Mars.

Artemis III includes launching the world’s most powerful rockets in short order. Blue Origin’s lander pathfinder, which is able to stay in orbit for multiple weeks, will launch first and await the crew. NASA will send the astronauts aboard Orion by SLS to orbit Earth, before rendezvousing in space with the company’s lander test article and spending about two days docked together for tests and technology demonstrations, including entering the lander.

After completing docked operations with Blue Origin, Orion will detach and await Starship. SpaceX’s Starship pathfinder will launch and meet up with Orion to spend about a day connected for checkouts and testing. After that, Orion and its crew will undock and return home, safely splashing down in the Pacific Ocean where a team from the U.S. Navy and NASA will recover the astronauts.

In total, the crew is expected to remain in space for about two weeks, with exact mission length to be determined in real-time based on launch, rendezvous and docked operations.

Source: NASA.Gov

Flight Hardware for the Next SLS Rocket Continues to be Transported to Florida...

Northrop Grumman

Northrop Grumman Ships Final Artemis III Booster Segments, Igniting Humanity’s Next Great Leap in Space (News Release)

Proven solid rocket motors continue to drive America’s return to the Moon and beyond

PROMONTORY, Utah – Northrop Grumman (NYSE: NOC) shipped the final eight twin solid rocket booster motor segments for NASA’s Artemis III mission to Kennedy Space Center, Florida, where they will be stacked this summer. The solid rocket boosters’ proven performance is now ready to support NASA’s goal of sustained lunar exploration and eventual missions to Mars.

- Upon arrival, the booster segments will join the previously-delivered segments shipped in April to be the first hardware assembled on the mobile launch platform.

- Northrop Grumman’s industry-leading solid rocket boosters generate 7.2 million pounds of thrust at lift-off, providing much of the thrust needed for NASA’s Space Launch System (SLS) during the Artemis III mission, which will send astronauts and critical cargo aboard the Orion spacecraft to test rendezvous operations in low-Earth orbit with Human Landing Systems.

- With uniquely-equipped facilities and a highly-skilled workforce, the company can accelerate solid rocket motor production to meet NASA’s increased Artemis mission launch cadence while supporting broader national security and space exploration objectives.

Source: Northrop Grumman

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Northrop Grumman

The Astronauts For Orion's Second Crewed Flight Will Soon Be Announced!

NASA

NASA to Announce Artemis III Crew, Provide Mission Progress Update (News Release)

NASA will provide an update on the agency’s Artemis III mission and announce the astronauts assigned to the test flight during a live event at 11 a.m. EDT on Tuesday, June 9, at the agency’s Johnson Space Center in Houston.

The event will stream on NASA+ and on the agency’s YouTube channel. Learn how to watch NASA content through a variety of online platforms, including social media.

Following the event, the Artemis III crew will be available for limited in-person and virtual interviews.

Interview requests must be submitted to the NASA Johnson newsroom by 5 p.m. on Thursday, June 4. International media interested in attending must contact the NASA Johnson newsroom at jsccommu@mail.nasa.gov by 5 p.m., Thursday, May 28. U.S. media must contact the newsroom by 5 p.m., June 4.

Registered media will receive confirmation and additional event details by email. NASA’s media accreditation policy is available online.

Artemis III will launch four astronauts from NASA’s Kennedy Space Center in Florida aboard the Orion spacecraft on the SLS (Space Launch System) rocket. The mission will test critical rendezvous and docking capabilities between Orion and commercial human landing systems needed to deliver astronauts to the lunar surface. Building on the successful Artemis II crewed test flight in April, Artemis III will pave the way for future surface missions.

As part of the Golden Age of innovation and exploration, NASA will send Artemis astronauts on increasingly complex missions to explore more of the Moon for scientific discovery, economic benefits, establish an enduring human presence on the lunar surface, and to build on our foundation for the first crewed missions to Mars.

Source: NASA.Gov

New Details Emerge About the Next Flight of SLS...

NASA / Keegan Barber

NASA Outlines Preliminary Artemis III Mission Plans (News Release)

NASA is moving quickly to define next year’s Artemis III mission in Earth orbit, a crewed flight that will test rendezvous and docking capabilities between the agency’s Orion spacecraft and commercial landers from Blue Origin and SpaceX. Since a February announcement adding an Artemis mission ahead of crewed landing missions to the Moon’s South Pole region, engineers have been evaluating mission profile options and operational considerations for Artemis III to ensure that the test flight helps the agency and its partners reduce risk ahead of the next Americans landing on the Moon during Artemis IV.

“While this is a mission to Earth orbit, it is an important stepping stone to successfully landing on the Moon with Artemis IV. Artemis III is one of the most highly complex missions NASA has undertaken,” said Jeremy Parsons, Moon to Mars acting assistant deputy administrator, NASA’s Exploration Systems Development Mission Directorate in Washington. “For the first time, NASA will coordinate a launch campaign involving multiple spacecraft integrating new capabilities into Artemis operations. We’re integrating more partners and interrelated operations into this mission by design, which will help us learn how Orion, the crew, and ground teams all interact together with hardware and teams from both lander providers before we send astronauts to the Moon’s surface and build a Moon Base there.”

The mission is planned to carry out a series of objectives designed to demonstrate critical systems needed for a future lunar landing. During the Artemis III mission, the SLS (Space Launch System) rocket will launch the Orion spacecraft from NASA’s Kennedy Space Center in Florida with four crew members. Instead of using the interim cryogenic propulsion stage as the upper stage of the rocket, NASA will use a “spacer,” a representation of the mass and overall dimensions of an upper stage but without propulsive capabilities.

The spacer will maintain the same overall dimensions and interface connection points as the upper stage between the Orion stage adapter and launch vehicle stage adapter.

Design and fabrication activities for the spacer are progressing rapidly at NASA’s Marshall Space Flight Center in Huntsville, Alabama. Material for the barrel section and the upper and lower rings is currently being machined at Marshall in preparation for upcoming welding operations.

After the rocket delivers Orion to orbit, the spacecraft’s European-built service module will provide propulsion to circularize Orion’s orbit around the planet in low-Earth orbit. This orbit increases overall mission success by allowing more launch opportunities for each element as compared to a lunar mission — SLS carrying Orion and its crew, SpaceX’s Starship human landing system pathfinder, and Blue Origin’s Blue Moon Mark 2 human landing system pathfinder.

Informed by Blue Origin and SpaceX capabilities, NASA is also defining the concept of operations for the mission. While some decisions are yet to be determined, astronauts could potentially enter at least one lander test article.

The crew will spend more time aboard Orion than during Artemis II, further advancing the evaluation of life support systems, and for the first time will demonstrate the docking system performance. The mission will inform lander rendezvous and habitation concepts and mission operations in preparation for future surface missions. The agency also plans to test an upgraded heat shield during Orion’s return to Earth to enable more flexible and robust reentry profiles for future missions.

Over the coming weeks, NASA will continue to refine specific plans for the flight, including a timeline for identifying astronauts to train for mission operations, options to evaluate Axiom’s AxEMU spacesuit lander interfaces ahead of lunar surface missions, mission duration, and potential science operations for the flight. NASA has asked for industry input on potential solutions to improve the communications with the ground during the mission since the Deep Space Network will not be used. The agency is also seeking both international and domestic interest in potentially flying CubeSats to deploy in Earth orbit, and may share other opportunities as the concept of operations for the mission is further defined.

As part of the Golden Age of innovation and exploration, NASA will send Artemis astronauts on increasingly difficult missions to explore more of the Moon for scientific discovery, economic benefits, establish an enduring human presence on the lunar surface, and to build on our foundation for the first crewed missions to Mars.

Source: NASA.Gov

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NASA / Kim Shiflett


NASA / Jess Ruffa

A full-scale prototype of the crew cabin of Blue Origin’s Blue Moon Mark 2 crew lander is now operational for training and testing at @nasa_johnson!

Read how we will be using this crew cabin for simulations to prepare for future Artemis missions >> https://t.co/Lo5tcckxUT pic.twitter.com/2OvYoXqyRZ

— NASA Marshall (@NASA_Marshall) May 8, 2026

First full stack of Starship V3 pic.twitter.com/l2s7U7ndCs

— SpaceX (@SpaceX) May 9, 2026

The Latest Update on an Artemis Lunar Lander...

NASA

Blue Origin Moon Lander Completes Testing at NASA Vacuum Chamber (News Release - May 4)

Also known as Endurance, MK1 is an uncrewed cargo lander funded by Blue Origin as a commercial demonstration mission to advance Human Landing System capabilities in support of NASA’s Artemis program. The tests in Chamber A represent a public-private partnership model, with Blue Origin conducting work through a reimbursable Space Act Agreement.

Endurance will demonstrate precision landing, cryogenic propulsion, and autonomous guidance, navigation, and control capabilities in support of future lunar surface operations. In addition to its primary objectives, MK1 will carry two NASA science and technology payloads under the CLPS (Commercial Lunar Payload Services) initiative to the lunar South Pole region this year: the Stereo Cameras for Lunar Plume-Surface Studies, an array of high-resolution cameras that will collect imagery of the interaction between the lander’s engine plume and the lunar surface during descent and landing, and the Laser Retroreflective Array, which helps orbiting spacecraft determine a more precise location using reflected laser light.

Through CLPS, NASA partners with American companies to deliver science investigations and technology demonstrations to the Moon, advancing understanding of the lunar environment and supporting future crewed missions as part of the agency’s Artemis campaign.

Testing in NASA Johnson’s Chamber A, one of the world’s largest thermal vacuum test facilities, enabled engineers to model the vacuum of space and the extreme temperature conditions that the spacecraft would experience during flight. By recreating these conditions on the ground, teams evaluated system performance and verified structural and thermal integrity prior to launch. NASA and Blue Origin will incorporate lessons learned from MK1’s design, integration and testing to support NASA’s future Artemis missions that will return American astronauts to the Moon.

MK1’s development contributes to technology maturation and risk reduction for future human-class systems, including Blue Moon Mark 2 (MK2), a larger crewed landing system designed to safely transport astronauts from lunar orbit to the surface and back, enabling sustained human exploration at the Moon’s South Pole region.

Testing of MK1 at NASA Johnson is enabled through the agency’s “front door” approach — a coordinated process that provides commercial partners access to NASA facilities and technical expertise while maintaining safety, mission assurance, and alignment with agency objectives.

Source: NASA.Gov

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Blue Origin


Blue Origin

Three More Nations Have Joined NASA's Moon Exploration Initiative...

NASA

NASA Welcomes Ireland as Newest Artemis Accords Signatory (News Release)

Ireland signed the Artemis Accords on Monday during a signing ceremony hosted by NASA, becoming the latest nation to commit to the responsible exploration of space for all humanity.

Ireland, a longstanding member of ESA (European Space Agency) and a valued international partner for NASA, now joins all 23 ESA member states as a signatory of the Artemis Accords.

“It is my privilege to welcome Ireland as the 66th and newest signatory to the Artemis Accords,” said NASA Administrator Jared Isaacman during remarks. “The Emerald Isle is now part of a growing community of like-minded nations committed to the peaceful, transparent and responsible exploration of space. Ireland joins at a pivotal moment. Artemis II was the opening act in humanity’s return to the Moon. What comes next is a sustained campaign of missions that will take us back to the lunar surface, not just for flags and footprints, but to build a base and stay.”

Underscoring the longstanding cultural ties and shared heritage between the United States and Ireland, the signing was celebrated during a ceremony at NASA Headquarters in Washington attended by U.S. Congressional staffers and interagency representatives.

Ireland’s Minister for Enterprise, Tourism and Employment Peter Burke, T.D., signed on behalf of the country.

“From an island shaped by the sea, whose people have always looked beyond the horizon and journeyed across the world, forging connections far beyond our shores, Ireland is proud to bring that same spirit to a new frontier and to join a global community committed to the peaceful exploration of space,” said Burke.

Ambassador of Ireland to the United States of America Geraldine Byrne Nason and Chief of Staff in the Office of the Under Secretary for Economic Affairs William Cappelletti, U.S. Department of State, participated in the event. U.S. Ambassador to Ireland Edward Walsh also attended.

In 2020, the United States, led by NASA and the U.S. Department of State, joined with seven other founding nations to establish the Artemis Accords, responding to the growing interest in lunar activities by both governments and private companies.

The Artemis Accords introduced the first set of practical principles aimed at enhancing the safety and coordination between like-minded nations as they explore the Moon, Mars and beyond.

Signing the Artemis Accords means committing to explore peaceably and transparently, to render aid to those in need, to enable access to scientific data that all of humanity can learn from, to ensure activities do not interfere with those of others, and to preserve historically-significant sites and artifacts by developing best practices for space exploration for the benefit of all.

More countries are expected to sign the Artemis Accords in the months and years ahead, as NASA continues its work to establish a safe, peaceful and prosperous future in space.

Source: NASA.Gov

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Morocco signs the Artemis Accords https://t.co/zPUwMJCxWW pic.twitter.com/yrV2PWUhQe

— SpaceNews (@SpaceNews_Inc) April 30, 2026

Congratulations, Malta. Welcome to the Artemis Accords as we build toward the Moon, Mars, and beyond. pic.twitter.com/cAYPxkTj8g

— NASA Administrator Jared Isaacman (@NASAAdmin) May 4, 2026

The Third SLS Core Stage Booster Will Soon Complete Final Assembly While Integrity Is Back in Florida...

NASA / Glenn Benson

NASA’s Artemis III Moon Rocket Hardware Arrives, Artemis II Capsule Returns to Kennedy (News Release)

On the heels of a successful Artemis II test flight, teams at NASA’s Kennedy Space Center in Florida are pressing forward for the next Artemis mission. Technicians maneuvered NASA’s massive core stage of the SLS (Space Launch System) rocket inside the agency’s Vehicle Assembly Building (VAB) at NASA Kennedy on April 28 in preparation for Artemis III, as the Artemis II crew module arrived back at Kennedy for post-flight analysis.

The Artemis III core stage will be placed horizontally in the transfer aisle of the VAB before being lifted into High Bay 2, where it will be connected to the engine section and its boat-tail, which were integrated in August 2025. At 212 feet tall when fully assembled, the core stage houses two propellant tanks that collectively hold more than 733,000 gallons of super-chilled liquid propellant to fuel four RS-25 engines, as well as the flight computers, or avionics, that act as the brains of the rocket to control flight during ascent. This marks the first time core stage assembly operations are taking place at NASA Kennedy.

Booster Motor Segments for Artemis III Processing

Other SLS hardware for Artemis III is arriving in Florida. The first shipment of booster motor segments for the flight arrived at Kennedy on April 13. These components will form the twin solid rocket boosters for SLS, which generate more than 75% of the rocket’s thrust at liftoff.

A second shipment of booster motor segments is expected this summer.

Shipped by rail across eight states in specialized transporters, the segments were manufactured by Northrop Grumman in Utah before making their journey to the spaceport. Teams are now processing the hardware inside Kennedy’s Rotation, Processing and Surge Facility, where each segment will be inspected and prepared for integration.

Once ready, the motor segments will be moved to the VAB and stacked with forward and aft assemblies to form the towering, 17-story-tall boosters. Working together with the SLS core stage and its four RS-25 engines, the boosters will help produce 8.8 million pounds of thrust—powering Artemis III and future missions as NASA continues its campaign of lunar exploration.

Artemis II Orion Arrives at Kennedy

Arriving on the opposite side of the spaceport after carrying NASA astronauts Reid Wiseman, Victor Glover and Christina Koch, and CSA (Canadian Space Agency) astronaut Jeremy Hansen around the Moon and returning them safely to Earth, Artemis II's Orion spacecraft Integrity arrived back at NASA Kennedy’s Multi-Payload Processing Facility.

Now at Kennedy, technicians will begin de-servicing operations on Integrity. This includes removing payloads from the crew module, removing avionics boxes for reuse, and retrieving data on the spacecraft to better understand how it performed to inform procedures and plans for future Artemis missions. Integrity’s heat shield and other elements will be removed for extensive analysis, and remaining hazards such as excess propellant will be offloaded.

While detailed Artemis II post-flight assessments are underway, engineers are completing major functional testing of the Artemis III Orion crew module at NASA Kennedy before joining it with its service module later this summer. All 186 Avcoat blocks for its upgraded heat shield have been installed, cured and inspected. Teams also completed thermal cycle testing and ultrasonic inspections of the heat shield.

The Artemis III Orion service module has successfully undergone thermal cycle testing, deployment checks of all four solar array wings, and installation of the adapter cone that connects Orion to the SLS rocket. NASA plans to integrate the crew and service modules with the launch abort system later this year.

Next year’s Artemis III mission will launch astronauts to Earth’s orbit aboard the Orion spacecraft on top of SLS to test rendezvous and docking capabilities between Orion and commercial spacecraft needed to land Artemis IV astronauts on the Moon in 2028.

Source: NASA.Gov

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NASA / Glenn Benson


NASA / Tiffany Fairley

The Booster for the Third SLS Flight Has Arrived at Cape Canaveral...

NASA / Ben Smegelsky

NASA’s Artemis Core Stage Arrives at Kennedy (News Release)

The largest rocket section for NASA’s Artemis III mission arrived at the agency’s Kennedy Space Center in Florida on April 27. The SLS (Space Launch System) core stage traveled 900 miles on the Pegasus barge from NASA’s Michoud Assembly Facility in New Orleans where the stage is manufactured, to complete assembly of the massive rocket at NASA Kennedy.

Teams will transport the top four-fifths of the 212-foot-long core stage, the section containing the liquid hydrogen tank, liquid oxygen tank, intertank and forward skirt, on Tuesday, April 28 to NASA’s Vehicle Assembly Building to join the previously delivered boat-tail and engine section in the facility’s High Bay 2 for outfitting and vertical integration to complete the full stage.

Artemis III will launch crew aboard the Orion spacecraft on top of the SLS rocket to test rendezvous and docking capabilities between Orion and commercial spacecraft needed to land astronauts on the Moon.

Watch a livestream of the unloading and transporting of the core stage to the Vehicle Assembly Building at NASA Kennedy beginning at approximately 8 a.m. EDT on April 28.

Source: NASA.Gov

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NASA / Ben Smegelsky

Meeting the Next Crew Dragon Astronauts to Fly to the ISS...

NASA

NASA Shares SpaceX Crew-13 Assignments for Space Station Mission (News Release - April 23)

As part of NASA’s SpaceX Crew-13 mission, four crew members from three space agencies will launch no earlier than mid-September to the International Space Station for a long-duration science expedition.

NASA astronauts Jessica Watkins and Luke Delaney will serve as spacecraft commander and pilot, respectively. They will be joined by CSA (Canadian Space Agency) astronaut Joshua Kutryk and Roscosmos cosmonaut Sergey Teteryatnikov, who will serve as mission specialists. After arriving at the orbiting laboratory, Crew-13 will become members of the space station’s Expedition 75.

This flight is the 13th crew rotation with SpaceX to the space station as part of NASA’s Commercial Crew Program. NASA is advancing the launch date of Crew-13 from November to help increase the frequency of U.S. crew rotation missions to the space station. The crew will conduct scientific investigations and technology demonstrations to help prepare humans for future exploration missions to the Moon and Mars, and benefit people on Earth.

This will be the second flight to the space station for Watkins, who was selected as a NASA astronaut in 2017. Watkins grew up in Lafayette, Colorado, and earned an undergraduate degree in geological and environmental sciences from Stanford University, as well as a doctorate in geology from the University of California, Los Angeles. As a geologist, she studied the Martian surface and was a member of the Curiosity rover science team at NASA’s Jet Propulsion Laboratory in Southern California.

Watkins first launched to the space station as a crew member aboard NASA’s SpaceX Crew-4 mission, spending a total of 170 days in space across Expeditions 67/68 in 2022. She will be the first NASA astronaut to launch aboard a SpaceX Dragon spacecraft twice.

Selected as a NASA astronaut in 2021, Delaney earned a bachelor’s degree in mechanical engineering at the University of North Florida and a master’s degree in aerospace engineering at the Naval Postgraduate School. The Florida native is a distinguished naval aviator who participated in exercises throughout the Asia Pacific region and conducted missions in support of Operation Enduring Freedom. As a test pilot, Delaney evaluated developmental aircraft systems and served as a test pilot instructor.

Delaney also worked as a research pilot at NASA’s Langley Research Center in Hampton, Virginia, where he supported airborne science missions. This is the first spaceflight for Delaney.

The Crew-13 mission is also the first spaceflight for Kutryk. Prior to his selection as a CSA astronaut in 2017, he served as a CF-18 fighter pilot, flying missions in support of Canada’s NATO, U.N., and North American Aerospace Defense Command commitments. A native of Fort Saskatchewan, Alberta, Kutryk also worked as an experimental and operational test pilot at the Aerospace Engineering Test Establishment in Cold Lake, Alberta.

Kutryk received a bachelor’s degree in mechanical engineering from the Royal Military College of Canada in Kingston, Ontario, and he is a distinguished graduate of the United States Air Force Test Pilot school in Edwards, California. He has master’s degrees in space studies, flight test engineering, and defense studies.

Crew-13 will be Teteryatnikov’s first trip to the orbiting laboratory. He graduated from the Naval Academy, St. Petersburg, Russia, in 2011 as an engineer specializing in ship power plant operations. Before his selection as a test cosmonaut, Teteryatnikov served in various naval engineering roles, including undersea vessels and specialized engine room operations.

Teteryatnikov was selected for the Gagarin Research and Test Cosmonaut Training Center Cosmonaut Corps in 2021 and has served as a test cosmonaut since 2023.

For more than 25 years, people have lived and worked continuously aboard the International Space Station, advancing scientific knowledge and making research breakthroughs that aren’t possible on Earth. The space station helps NASA understand and overcome the challenges of human spaceflight, expand commercial opportunities in low-Earth orbit, and build on the foundation for long-duration missions to the Moon, as part of the Artemis program, and to Mars.

Source: NASA.Gov

Nation #63 Has Joined NASA's Moon Exploration Initiative...

NASA

NASA Welcomes Jordan as 63rd Artemis Accords Signatory (News Release)

The Hashemite Kingdom of Jordan signed the Artemis Accords on Thursday during a ceremony hosted by NASA at the agency’s headquarters in Washington, becoming the latest nation to commit to responsible space exploration to benefit humanity.

“It is my privilege to welcome Jordan as the newest signatory to the Artemis Accords,” said NASA Administrator Jared Isaacman. “By signing the accords today, Jordan brings valuable perspective and capabilities that will help expand the Golden Age of exploration for all mankind. They join at a pivotal moment, as we take the accords principles and put them into practice with humanity’s return to the Moon. Through Artemis, we’re going back to the lunar surface, with contributions from our international partners, to build a Moon Base and to stay.”

Ambassador Dina Kawar of Jordan signed the accords on behalf of the country. U.S. Department of State Acting Principal Deputy Assistant Secretary for Oceans and International Environmental and Scientific Affairs Ruth Perry also participated in the ceremony.

“Jordan has more engineers per capita than almost any country in the world,” said Kawar. “Through the National Council for Future Technologies, His Royal Highness Crown Prince Al Hussein is ensuring that talent has a direction, transforming Jordan into a regional and global technology hub across AI, digital infrastructure, advanced manufacturing, and now space. Today’s signing is proof that this ambition has no ceiling. We invite our American partners to build what comes next with us.”

In 2018, Jordan launched the JY1 satellite, a CubeSat developed by university students. The CubeSat transmitted images and audio from orbit after its launch on a SpaceX Falcon 9 rocket from Vandenberg Space Force Base in California. Jordan’s growing interest in space includes a privately-operated analog research facility in Wadi Rum, where the Jordan Space Research Initiative conducted its PETRA1 and PETRA2 missions in 2024 and 2025 to advance human spaceflight and planetary research for real-world benefits on Earth.

In 2020, the United States, led by NASA and the State Department, joined with seven other founding nations to establish the Artemis Accords, responding to the growing interest in lunar activities by both governments and private companies. The accords introduced the first set of practical principles aimed at enhancing the safety and coordination between like-minded nations as they explore the Moon, Mars and beyond.

Signing the Artemis Accords means committing to explore peaceably and transparently, to render aid to those in need, to enable access to scientific data that all of humanity can learn from, to ensure activities do not interfere with those of others, and to preserve historically-significant sites and artifacts by developing best practices for space exploration for the benefit of all.

More countries are expected to sign the Artemis Accords in the months and years ahead, as NASA continues its work to establish a safe, peaceful and prosperous future in space.

Source: NASA.Gov

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NASA

Nation #62 Has Joined NASA's Moon Exploration Initiative...

NASA

NASA Welcomes Latvia as Newest Artemis Accords Signatory (News Release - April 20)

The Republic of Latvia signed the Artemis Accords on Monday during a ceremony hosted by NASA at the agency’s headquarters in Washington, becoming the 62nd nation to commit to responsible space exploration for all of humanity.

“We are proud to welcome Latvia to the Artemis Accords,” said NASA Administrator Jared Isaacman. “Each new signatory strengthens a coalition committed to the transparent and peaceful exploration of space. The accords are the foundation for real missions and real cooperation on the lunar surface, and Latvia’s commitment strengthens our shared vision for this next great era of exploration.”

Latvia’s Minister for Education and Science Dace Melbārde signed on behalf of the country. Chargé d’affaires a.i. at the Embassy of the Republic of Latvia to the United States Jānis Beķeris and U.S. Under Secretary of State for Economic Affairs Jacob Helberg also participated in the event.

“Today, Latvia aligns with a shared vision for humanity beyond Earth, grounded in international cooperation and the peaceful, transparent and responsible exploration of outer space,” said Melbārde. “By joining the Artemis Accords, we make a clear commitment to these principles. Latvia already contributes to the global space ecosystem through its industry and research, and we look forward to the opportunity to deepen cooperation with the United States and NASA, contributing to future space activities under the Artemis framework. Participation in the Artemis Accords is also an investment in the development of our students, researchers and innovators.”

Last month, NASA announced plans to return to the Moon routinely and affordably, establishing an enduring presence and building a sustained lunar base. More than 40 Artemis Accords countries across six continents sent representatives to Washington for the event, announcing new opportunities for exploration and science. The group represented more than two thirds of the current Artemis Accords signatories.

In 2020, the United States, led by NASA and the U.S. Department of State, joined with seven other founding nations to establish the Artemis Accords, responding to the growing interest in lunar activities by both governments and private companies. The accords introduced the first set of practical principles aimed at enhancing the safety and coordination between like-minded nations as they explore the Moon, Mars and beyond.

Signing the Artemis Accords means committing to explore peaceably and transparently, to render aid to those in need, to enable access to scientific data that all of humanity can learn from, to ensure that activities do not interfere with those of others, and to preserve historically-significant sites and artifacts by developing best practices for space exploration for the benefit of all.

More countries are expected to sign the Artemis Accords in the months and years ahead, as NASA continues its work to establish a safe, peaceful and prosperous future in space.

Source: NASA.Gov

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NASA

The Booster for the Third SLS Flight Will Soon Head to KSC...

NASA / Eric Bordelon

NASA Rolls Out Artemis III Moon Rocket Core Stage (News Release)

Following the recent successful test flight of NASA’s Artemis II mission around the Moon, NASA rolled out the core stage, or the largest section, of the agency’s SLS (Space Launch System) rocket that will launch the crewed Artemis III mission in 2027. The stage departed from the agency’s Michoud Assembly Facility in New Orleans on Monday for shipment to NASA’s Kennedy Space Center in Florida, marking key progress on the path to the agency’s first crewed lunar landing mission to the Moon under the Artemis program in two years.

Using highly-specialized transporters, engineers maneuvered the top four-fifths of the SLS core stage, the section containing the liquid hydrogen tank, liquid oxygen tank, intertank and forward skirt, from inside NASA Michoud to the agency’s Pegasus barge for delivery to NASA Kennedy. After arrival, teams will complete the stage outfitting and vertical integration, and the agency’s Exploration Ground Systems Program will stack the rocket’s components in preparation for launch.

“Seeing this SLS rocket hardware roll out is a powerful reminder of our progress toward returning humans to the lunar surface,” said Lori Glaze, acting associate administrator, Exploration Systems Development Mission Directorate at NASA Headquarters in Washington. “This is the backbone of Artemis III. As it heads to Florida for final integration, we are one step closer to testing the critical capabilities needed to land Americans on the Moon, and ultimately, paving the way for our first crewed missions to Mars.”

At 212 feet tall, the completed core stage will consist of the top four fifths of the rocket combined with its engine section. The top four-fifths include the two propellant tanks that collectively hold more than 733,000 gallons of super-chilled liquid propellant to fuel four RS-25 engines. During launch and flight, the fully-integrated stage will operate for more than eight minutes, producing more than 2 million pounds of thrust to propel astronauts inside NASA’s Orion spacecraft into orbit.

Building, assembling and transporting the core stage is a collaborative process for two of NASA’s prime contractors, Boeing and L3Harris Technologies. Boeing is responsible for the overall design and assembly of the core stage, and L3Harris manufactures the rocket’s RS-25 engines. Recent announcements by NASA Administrator Jared Isaacman enabled the agency to standardize the SLS configuration, streamline operations, and optimize production to accelerate the Artemis program.

Next year’s Artemis III mission will launch astronauts to Earth’s orbit aboard the Orion spacecraft on top of SLS to test rendezvous and docking capabilities between Orion and commercial spacecraft needed to land Artemis IV astronauts on the Moon in 2028. NASA’s SLS is the only rocket capable of sending Orion, astronauts and supplies to the Moon in a single launch.

As part of the Golden Age of innovation and exploration, NASA will send Artemis astronauts on increasingly difficult missions to explore more of the Moon for scientific discovery, economic benefits, establish an enduring human presence on the lunar surface, and to build on our foundation for the first crewed missions to Mars.

Source: NASA.Gov

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NASA / Michael DeMocker


NASA / Eric Bordelon


Boeing