Editor’s note: This media advisory was updated July 27, 2026 to reflect an updated start time for the spacewalk on Thursday, Aug. 6.

NASA will provide coverage as astronauts venture outside the International Space Station during three spacewalks in August to continue upgrading solar arrays, replace a communications antenna, and connect power and data cables in support of space station operations.

Experts will preview the upcoming spacewalks during a news conference at 2 p.m. EDT, Thursday, July 30, from NASA’s Johnson Space Center in Houston.

NASA will stream these events through a variety of platforms. Learn where to watch online:

https://www.nasa.gov/live

NASA participants in the news conference include:

• Bill Spetch, deputy manager of Commercial, Low Earth Orbit Program
• Chris Dobbins, spacewalk flight director
• Chloe Mehring, spacewalk flight director

United States-based media interested in attending in person must contact the Johnson newsroom no later than 3 p.m., Wednesday, July 29, at jsccommu@mail.nasa.gov. Media joining by phone should request dial-in details by the same deadline. To ask a question, media must dial in no later than 15 minutes before the start of the news conference.

Thursday, Aug. 6

NASA astronauts Jessica Meir and Anil Menon will exit the Quest airlock to install hardware that will modify the station’s 3B power channel and prepare it for the future installation of an International Space Station Roll-Out Solar Array (IROSA). The solar array, scheduled for delivery later this year, will be the seventh IROSA and will provide additional power to support critical station operations, including its safe and controlled deorbit.

Watch NASA’s live coverage of U.S. spacewalk 96 beginning at 7 a.m. The spacewalk is expected to start at 8:35 a.m. and last about six and a half hours.

This spacewalk will be the sixth for Meir and the first for Menon. Meir will serve as spacewalk crew member 1 and will wear a suit with red stripes. Menon will serve as crew member 2 and will wear an unmarked suit.

Thursday, Aug. 13

During U.S. spacewalk 97, two astronauts will replace a Space-to-Ground antenna on the orbital complex. The antenna is a critical communication system NASA uses to transmit data and high‑speed communication between the Mission Control Center in Houston and the space station.

Tuesday, Aug. 25

The U.S. spacewalk 98 crew members will connect power channel cables and data relay systems as part of ongoing maintenance, including preparations for the space station’s future deorbit. The astronauts also will replace a navigational aid used for spacecraft docking on the Harmony module’s forward port.

NASA will share additional details about U.S. spacewalks 97 and 98, including timing, assigned crew members, and coverage information, closer to each operation.

The spacewalks will be the 281st, 282nd, and 283rd conducted in support of space station assembly, maintenance, and upgrades.

To learn more about International Space Station research, operations, and its crews, visit:

https://www.nasa.gov/station

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Joshua Finch / Jimi Russell
Headquarters, Washington
202-358-1100
joshua.a.finch@nasa.gov / james.j.russell@nasa.gov

Sandra Jones / Anna Schneider 
Johnson Space Center, Houston 
281-483-5111 
sandra.p.jones@nasa.gov / anna.c.schneider@nasa.gov

NASA and Blue Origin announced Friday they recently agreed to conduct second stage hot fire testing for the company’s New Glenn rocket on the B-2 test stand at the agency’s Stennis Space Center near Bay St. Louis, Mississippi.

The annex to a reimbursable Space Act Agreement signed earlier this month highlights NASA’s commitment to working alongside commercial partners toward Artemis missions in 2027 and beyond.

“Stennis continues to be a hub for the commercial space industry,” said Sen. Roger Wicker. “Mississippi warmly welcomes Blue Origin’s return to the coast and to our legendary rocket testing facilities.”

“The success of Artemis II has roots at NASA Stennis, and I’m excited about the prospect of Blue Origin establishing a rigorous test program in Mississippi as part of future American crewed missions to the Moon and beyond. I hope its use of B-2 test stand becomes a long-term arrangement that broadens our state’s contribution to space exploration. I will certainly do what I can to make that a reality,” said Sen. Cindy Hyde-Smith.

“Mississippi continues to play a vital role in America’s space program, and this agreement between NASA and Blue Origin is another major win for Stennis Space Center. The world-class capabilities at the B-2 test stand will help advance the next generation of rocket propulsion while supporting high-skilled jobs and strengthening our nation’s leadership in space exploration. I look forward to seeing the innovation that comes from this partnership,” said Rep. Mike Ezell.

Testing, targeted to begin this fall, directly supports NASA’s work to achieve the national goal of landing American astronauts on the surface of the Moon and building a Moon Base near the lunar South Pole. These efforts aim to strengthen American leadership in space, unlock scientific discovery, drive innovation with industry, and prepare for human missions to Mars.

 “Winning the new space race means moving faster and working alongside a strong commercial industry. Supporting Blue Origin at NASA’s Stennis Space Center puts world-class American infrastructure to work advancing the capabilities needed to return astronauts to the Moon, establish a sustained lunar presence, and prepare for Mars. Partnerships like this strengthen our industrial base and help ensure the United States remains the world’s leader in space,” said NASA Administrator Jared Isaacman.

Building on the successful Artemis II flight from April, Artemis III is a highly choreographed, multi-launch campaign that will require four astronauts to test rendezvous and docking capabilities of NASA’s Orion spacecraft with commercial human landing systems from Blue Origin and SpaceX in low Earth orbit.

In addition, Blue Origin’s New Glenn will be used to launch missions that will land on the Moon.

“We are proud to partner with NASA and build on our shared commitment to returning America to the Moon and our broader mission to build a road to space for the benefit of Earth,” said Blue Origin CEO Dave Limp. “Stennis helped take Americans to the Moon, and through this partnership, it will help take us back.”

In May, NASA announced the first three Moon Base missions to begin building sustained operations, including an award to Blue Origin to launch a robotic mission this fall. The company’s Blue Moon Mark 1 Endurance lander will deliver NASA payloads to the lunar South Pole’s Shackleton Connecting Ridge, demonstrating capabilities that reduce risk for astronauts to land on the Moon during Artemis IV and V in 2028.

To support upcoming testing at Stennis, NASA will provide the engineers, equipment, and building services needed to design, build, and install parts that will prepare the B-2 for second stage testing of the rocket named in honor of the late NASA astronaut John Glenn, the first American to orbit Earth. The rocket’s second stage is powered by two BE‑3 engines that use liquid oxygen and liquid hydrogen propellants, with each engine generating 200,000 pounds of thrust in vacuum.

In addition to providing hands‑on technical support, NASA also will assist Blue Origin’s test operations by providing dedicated workspace and sharing agency expertise and lessons learned from propulsion testing conducted at the test stand.

Blue Origin will work toward second stage rocket testing on a stand with a history of testing rocket stages for Moon missions dating back to the 1960s. The agency constructed the stand to test the Saturn V rocket stages that carried humans to the Moon during the Apollo Program. More recently, NASA conducted a Green Run test series of the SLS core stage on the stand before the Artemis I test flight.

For more information about NASA’s Artemis program, visit:

https://www.nasa.gov/artemis

-end-

Camille Gallo / Cheryl Warner
Headquarters, Washington
202-358-1600
camille.m.gallo@nasa.gov / cheryl.m.warner@nasa.gov

Sallie Bilbo
Stennis Space Center, Bay St. Louis, Mississippi
228-342-6512
sallie.n.bilbo@nasa.gov

Editor’s Note: This advisory was updated on July 23, 2026, to reflect changes to the mission timeline. 

NASA astronaut Chris Williams and Roscosmos cosmonauts Sergey Kud-Sverchkov and Sergei Mikaev are wrapping up their 241‑day mission aboard the International Space Station.

The crew and its Soyuz MS-28 spacecraft will undock from the orbiting laboratory’s Rassvet module at 3:03 a.m. EDT Sunday, July 26, heading for a parachute-assisted landing at 6:25 a.m. (3:25 p.m. local time) on the steppe of Kazakhstan, southeast of Dzhezkazgan.

NASA’s live return coverage will stream through a variety of platforms. Learn where to watch online:

https://www.nasa.gov/live

Williams and his crewmates will complete 3,856 orbits and travel more than 102 million miles before returning to Earth. The flight marks the first mission for Williams and Mikaev and the second for Kud‑Sverchkov.

After landing, the crew will fly by helicopter to Karaganda, Kazakhstan, where recovery teams are based. Williams then will return to NASA’s Johnson Space Center in Houston, while Kud‑Sverchkov and Mikaev head back to their training base in Star City, Russia.

NASA’s live return coverage is as follows (all times Eastern and subject to change based on real-time operations):

Saturday, July 25

9:40 a.m. – Coverage of the Space Station Expedition 74/75 change of command ceremony begins.

Kud‑Sverchkov will transfer command of the orbital complex to NASA astronaut Jessica Meir. Expedition 75 officially begins when Soyuz MS‑28 undocks.

11:10 p.m. – Coverage of crew farewells and hatch closing begins.

11:30 p.m. – Hatch closing

Sunday, July 26

2:30 a.m. – Coverage of undocking begins.

3:03 a.m. – Undocking

5:15 a.m. – Coverage of deorbit and landing begins.

5:31 a.m. – Deorbit burn

6:25 a.m. – Landing

For more than 25 years, people have lived and worked continuously aboard the International Space Station, advancing scientific knowledge and making research breakthroughs not 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.

To learn more about International Space Station research, operations, and its crews, visit:

www.nasa.gov/station

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Joshua Finch / Jimi Russell
Headquarters, Washington
202-358-1100
joshua.a.finch@nasa.gov / james.j.russell@nasa.gov

Leah Cheshier / Anna Schneider
Johnson Space Center, Houston
281-483-5111
leah.d.cheshier@nasa.gov / anna.c.schneider@nasa.gov

Read this release in English here.

Ya está abierto el plazo de acreditación de los medios de comunicación para el lanzamiento de la misión del telescopio espacial Nancy Grace Roman de la NASA.

El lanzamiento del telescopio Roman está programado para no antes de las 7:20 a.m. (hora del este) del domingo 30 de agosto, a bordo de un cohete Falcon Heavy de SpaceX, desde el Complejo de Lanzamiento 39A en el Centro Espacial Kennedy de la NASA en Florida. Este observatorio, que lleva el nombre de la primera astrónoma jefa de la NASA, ofrecerá una visión profunda y panorámica del cosmos, generando imágenes nunca antes vistas que revolucionarán nuestra comprensión del universo.

Los medios interesados en asistir al lanzamiento deben presentar su solicitud antes de los siguientes plazos:

• Los representantes de medios de comunicación internacionales sin ciudadanía estadounidense deben presentar su solicitud antes de las 11:59 p.m. del domingo 26 de julio.
• Los medios de comunicación de Estados Unidos y los ciudadanos estadounidenses que representen a organizaciones de medios internacionales deben presentar su solicitud antes de las 11:59 p.m. del jueves 30 de julio.•

Todas las solicitudes de acreditación deben ser enviadas en línea a través del sitio web:

https://media.ksc.nasa.gov

La política de acreditación de medios de la NASA está disponible en línea. Para consultas sobre la acreditación o para solicitudes logísticas especiales, envíe un correo electrónico a: ksc-media-accreditat@mail.nasa.gov.

Para otras consultas, comuníquese con la sala de prensa del Centro Espacial Kennedy de la NASA al teléfono: 321-867-2468.

Para obtener más información sobre esta misión, visite el sitio:

https://www.ciencia.nasa.gov/roman

-fin-

Alise Fisher / María José Viñas
Sede central de la NASA, Washington
202-385-1287
alise.m.fisher@nasa.gov / maria-jose.vinasgarcia@nasa.gov

Leejay Lockhart
Centro Espacial Kennedy, Florida
321-747-8310
leejay.lockhart@nasa.gov

Claire Andreoli
Centro de Vuelo Espacial Goddard de la NASA, Greenbelt, Maryland
301-286-1940
claire.andreoli@nasa.gov

Media accreditation now is open for the launch of NASA’s Nancy Grace Roman Space Telescope and the agency’s SpaceX Crew-13 missions, both targeting launch in the coming months.

The Roman telescope is slated to launch no earlier than 7:20 a.m. EDT Sunday, Aug. 30, aboard a SpaceX Falcon Heavy rocket from Launch Complex 39A at NASA’s Kennedy Space Center in Florida. The observatory, named after NASA’s first chief astronomer, will have a deep, panoramic view of the cosmos, generating never-before-seen pictures that will revolutionize our understanding of the universe.

Crew-13 is scheduled to launch no earlier than mid-September from Space Launch Complex 40 at Cape Canaveral Space Force Station. The mission will carry NASA astronauts Jessica Watkins and Luke Delaney, CSA (Canadian Space Agency) astronaut Joshua Kutryk, and Roscosmos cosmonaut Sergey Teteryatnikov to the International Space Station for a science and research expedition. This will be NASA’s 13th commercial crew rotation mission with SpaceX’s Falcon 9 rocket and Dragon spacecraft.

Media interested in attending either or both launches must apply by the following deadlines:

• International media without U.S. citizenship must apply by 11:59 p.m. on Sunday, July 26.
• U.S. media and U.S. citizens representing international media organizations must apply by 11:59 p.m. on Thursday, July 30.

All accreditation requests must be submitted online at:

https://media.ksc.nasa.gov

NASA’s media accreditation policy is online. For questions about accreditation or special logistical requests, email: ksc-media-accreditat@mail.nasa.gov.

For other questions, please contact NASA Kennedy’s newsroom at: 321-867-2468.

For more information about these missions, visit:

https://www.nasa.gov

-end-

Alise Fisher (Roman) / Joshua Finch (Crew-13)
Headquarters, Washington
202-385-1287 / 202-358-2546
alise.m.fisher@nasa.gov / joshua.a.finch@nasa.gov

Leejay Lockhart (Roman) / Steve Siceloff (Crew-13)
Kennedy Space Center, Fla.
321-747-8310 / 321-867-2468
leejay.lockhart@nasa.gov / steven.p.siceloff@nasa.gov

Claire Andreoli (Roman)
Goddard Space Flight Center, Greenbelt, Md.
301-286-1940
claire.andreoli@nasa.gov

The Republic of Serbia signed the Artemis Accords 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 activities do not interfere with those of others
• preserve historically significant sites and artifacts by developing best practices

Five years later, President Donald J. Trump’s National Space Policy directed NASA to establish a sustained lunar outpost. With this Moon Base, NASA is putting the principles of the Artemis Accords into practice, inviting every signatory to take part in the endeavor.

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. 

Learn more about the Artemis Accords at:

https://www.nasa.gov/artemis-accords

NASA is recruiting research participants for the agency’s next simulated deep space mission. Beginning no earlier than August 2027, research volunteers will spend one year living and working in interplanetary environments at the agency’s Johnson Space Center in Houston, operating under isolated conditions expected during crewed missions to the Moon or Red Planet.
 
Insights from this new, yearlong experience, called the Moon and Mars Exploration Analog, can be used to help keep astronauts safe and mission-ready during future planetary surface operations. The results also could inform plans for a sustained lunar presence through the agency’s Moon Base and future Artemis missions.
 
NASA is looking for applicants for the approximately year-long mission simulation, which will take place in two confined habitats. In addition to specific physical and education requirements, volunteers must be willing to take part in a multi-day selection process and pass NASA’s physical and psychological assessments, found on the Moon and Mars Exploration Analog web page. Candidates also should have a strong desire for unique, rewarding experiences, and interest in contributing to NASA’s work to prepare for extended stays on the lunar surface and the first crewed mission to Mars.
 
The Moon and Mars Exploration Analog evolves elements of the agency’s HERA (Human Exploration Research Analog) and CHAPEA (Crew Health And Performance Exploration Analog) missions into a single, integrated mission to streamline how researchers evaluate astronaut adaptation across the full range of potential mission scenarios. Using the HERA habitat as a spacecraft and the CHAPEA habitat as a base, the volunteers will live and work in confined, isolated environments that simulate months-long flights to and from other planetary surfaces. They also will mimic surface operations, including mock Mars walks and using a rover to travel to exploration sites located beyond the main habitat.
 
Throughout the Moon and Mars Exploration Analog mission, researchers will study crew health and performance under resource limitations and mission demands. These missions also help NASA assess and validate hardware, technologies, protocols, requirements, and other systems designed to support crew health and performance on long-duration deep space missions, all without leaving Earth. The effort will provide valuable data for NASA’s Human Research Program, which innovates ways to keep astronauts healthy and mission-ready.
 
To apply, visit:

 NASA Analogs Recruiting

As part of the Golden Age of innovation and exploration, NASA will send 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 the foundation for the first crewed missions to Mars.
 
For more about NASA’s Human Research Program, visit:

https://www.nasa.gov/hrp/

Editor’s note: This release was updated on June 30, 2026, to clarify the engineering development version for the PROMISE rover.

NASA announced Tuesday the selection of three companies to land four new missions on the Moon in late 2028 as part of the agency’s Moon Base Program. Astrobotic, Firefly Aerospace, and Intuitive Machines will deliver NASA science payloads to the lunar surface as the agency builds the first outpost on another celestial world.

“These new awards to our commercial partners, totaling nearly $600 million to land more missions on the Moon with science payloads, demonstrate our commitment to accelerating our effort to build a long-term presence on the lunar surface, and give us more opportunity to develop the skills we need to prosper there,” said Lori Glaze, associate administrator for the Human Spaceflight Mission Directorate at NASA Headquarters in Washington.

Astrobotic is awarded $297.9 million total for two deliveries, as well as Firefly Aerospace $144.2 million and Intuitive Machines $148.3 million for one delivery each as part of the agency’s CLPS (Commercial Lunar Payload Services) initiative, a backbone of the Moon Base. Each will use updated versions of already-flown lander designs to enable NASA’s increased mission cadence.

“We’re building a proving ground for Moon Base operations,” said Ryan Stephan, NASA’s Moon Base acting director of cargo landers. “Accelerating our Moon mission ordering cadence and launch opportunities enable us to move quickly to learn, iterate, and improve.”

With 17 lunar surface deliveries across multiple providers, NASA also announced new opportunities for American industry to contribute to the Moon Base. The agency is considering plans to send to the Moon, PROMISE (Polar Rover for Observation, Mapping, and In-Situ Exploration), a hybrid engineering development version of the Mars Perseverance and Curiosity rovers. Agency experts will define potential opportunities for PROMISE to characterize the lunar surface, subsurface, and prospect for resources.

In addition, NASA plans to solicit proposals in the coming months for lunar landers to deliver a power and avionics technology demonstration, another science manifest, and a South Pole optical imager. NASA also will share an open solicitation for Moon Base technology demonstrations and seek a lunar communication and navigation relay constellation to enable improved communication between Moon Base elements and Earth.

The awards announced June 30 will play a critical role in establishing the infrastructure for lunar surface operations. The companies are responsible for initiating and executing procurements, providing an assessment of a similar previous lunar lander, and incorporating lessons learned to improve the overall mission reliability.  

Each delivery will carry three NASA payloads to the lunar surface:

• Stereo Camera for Lunar Plume Surface Studies (SCALPSS): An array of four cameras that uses a technique called stereo photogrammetry to produce a 3D view of the impact of an engine’s exhaust plume on lunar dust as the lander descends on the Moon’s surface. Collecting data from a variety of engine sizes, propellants, and landing locations, these high-resolution stereo images will aid in creating models to predict lunar dust erosion and ejecta characteristics, playing a vital role as bigger, heavier spacecraft and hardware are delivered to the Moon near each other.
  
• Laser Retroreflector Array (LRA): Reflects laser beams transmitted by Moon orbiters or landing spacecraft to help them determine their orbit position or navigate to the surface. A small cookie-sized device made of eight quartz corner-cube prisms set into a dome-shaped aluminum frame, the array is passive, requiring no power or maintenance. These arrays have flown on previous CLPS landers and international lunar landers and will continue to be used to build a network of permanent location markers on the Moon for future exploration.
  
• Linear Energy Transfer Spectrometer (LETS): Helps to better understand the radiation environment from a variety of lunar transit approaches and at different locations on the lunar surface. Derived from heritage hardware, this radiation monitor uses a tiny, advanced silicon detector to measure the energy carried by incoming space radiation. It will provide information about how strong radiation is and what kind of radiation is hitting the lunar surface, and provides the kind of detailed radiation data NASA needs to design safer missions, protect astronauts, and plan long‑duration exploration.

The agency also is reviewing options for these landers to deliver potential additional payloads to the Moon.

“By flying the same science instruments on multiple landers, we will better understand potential hazards during landing and build out a global network of environmental data and location markers on the Moon,” said Joel Kearns, deputy associate administrator for exploration, Science Mission Directorate, NASA Headquarters. “It’s akin to having weather stations in different locations on Earth. These three payloads are flight-proven and their data is critical to supporting safe human exploration of the lunar surface.”

NASA is advancing development of the Moon Base, a long-term lunar exploration and infrastructure initiative designed to enable sustained human presence and expanded scientific and commercial activity on the lunar surface.

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

For more information about NASA’s Moon Base plans, visit:

https://www.nasa.gov/moonbase

-end-

Rachel Kraft / Molly Wasser
Headquarters, Washington
202-358-1600
rachel.h.kraft@nasa.gov / molly.l.wasser@nasa.gov

Ivry Artis / Kenna Pell
Johnson Space Center, Houston
281-483-5111
ivry.w.artis@nasa.gov / kenna.m.pell@nasa.gov

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