NASA Science, Cargo Launches Aboard Northrop Grumman CRS-23

NASA Science, Cargo Launches Aboard Northrop Grumman CRS-23

A SpaceX Falcon 9 rocket carrying Northrop Grumman’s Cygnus XL spacecraft is launched on NASA’s Northrop Grumman Commercial Resupply Services 23 mission to the International Space Station on Sunday, Sept. 14, 2025.
Credit: NASA

NASA is sending more science, technology demonstrations, and crew supplies to the International Space Station following the successful launch of the agency’s Northrop Grumman Commercial Resupply Services 23 mission, or Northrop Grumman CRS-23.

The company’s Cygnus XL spacecraft, carrying more than 11,000 pounds of cargo to the orbiting laboratory, lifted off at 6:11 p.m. EDT Sunday on a SpaceX Falcon 9 rocket from Space Launch Complex 40 at Cape Canaveral Space Force Station in Florida. This mission is the first flight of the larger, more cargo-capable version of the solar-powered spacecraft. 

Cygnus XL is scheduled to be captured at 6:35 a.m. on Wednesday, Sept. 17, by the Canadarm2 robotic arm, which NASA astronaut Jonny Kim will operate with assistance from NASA astronaut Zena Cardman. Following capture, the spacecraft will be installed to the Unity module’s Earth-facing port for cargo unloading.

The resupply mission is carrying dozens of research experiments that will be conducted during Expedition 73, including materials to produce semiconductor crystals in space and equipment to develop improvements for cryogenic fuel tanks. The spacecraft also will deliver a specialized UV light system to prevent the growth of microbe communities that form in water systems and supplies to produce pharmaceutical crystals that could treat cancer and other diseases.

These are just a sample of the hundreds of scientific investigations conducted aboard the station in the areas of biology and biotechnology, Earth and space science, physical sciences, as well as technology development and demonstrations. For nearly 25 years, NASA has supported a continuous U.S. human presence aboard the orbiting laboratory, where astronauts have learned to live and work in space for extended periods of time. The space station is a springboard for developing a low Earth economy and NASA’s next great leaps in exploration, including Artemis missions to the Moon and American astronaut missions to Mars.

NASA’s arrival, capture, and installation coverage are as follows (all times Eastern and subject to change based on real-time operations):

Wednesday, Sept. 17

5 a.m. – Arrival coverage begins on NASA+, Amazon Prime, and more.

6:35 a.m. – Capture of Cygnus XL with the space station’s robotic arm.

8 a.m. – Installation coverage begins on NASA+, Amazon Prime, and more.

All coverage times are estimates and could be adjusted based on operations after launch. Follow the space station blog for the most up-to-date information.

Cygnus XL is scheduled to remain at the orbiting laboratory until March 2026, before it departs and disposes of several thousand pounds of trash through its re-entry into Earth’s atmosphere, where it will harmlessly burn up. The spacecraft is named the S.S. William “Willie” C. McCool, in honor of the NASA astronaut who perished in 2003 during the space shuttle Columbia accident.

Learn more about this NASA commercial resupply mission at:

https://www.nasa.gov/mission/nasas-northrop-grumman-crs-23/

-end-

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

Steven Siceloff
Kennedy Space Center, Fla.
321-876-2468
steven.p.siceloff@nasa.gov

Sandra Jones / Joseph Zakrzewski
Johnson Space Center, Houston
281-483-5111
sandra.p.jones@nasa.gov / joseph.a.zakrzewski@nasa.gov

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Tiernan P. Doyle

Cygnus XL Cargo Craft Counts Down to Launch on NASA+

Cygnus XL Cargo Craft Counts Down to Launch on NASA+

Northrop Grumman’s Cygnus spacecraft, atop a SpaceX Falcon 9 rocket, soars from Space Launch Complex 40 at Cape Canaveral Space Force Station in Florida on Sunday, Aug. 4, 2024, for the 21st Northrop Grumman commercial resupply mission for NASA. The spacecraft is expected to reach the space station Tuesday, Aug. 6, bringing 8,200 pounds of science investigations, supplies, and equipment for the international crew.
Northrop Grumman’s Cygnus spacecraft lfts off atop a SpaceX Falcon 9 rocket from Space Launch Complex 40 at Cape Canaveral Space Force Station in Florida on Sunday, Aug. 4, 2024.
SpaceX

NASA’s coverage is underway on NASA+, Amazon Prime, and more for the launch of Northrop Grumman’s Commercial Resupply Services 23, or Northrop Grumman CRS-23, to the International Space Station. Learn how to watch NASA content through a variety of platforms, including social media.

The company’s Cygnus XL spacecraft is scheduled for liftoff at 6:11 p.m. EDT on a SpaceX Falcon 9 rocket from Space Launch Complex 40 at Cape Canaveral Space Force Station in Florida.

Filled with more than 11,000 pounds of scientific investigations, food, supplies, and equipment, Cygnus XL will arrive at the orbiting outpost on Wednesday, Sept. 17. NASA astronaut Jonny Kim will capture the spacecraft using the station’s Canadarm2 robotic arm, with assistance from NASA astronaut Zena Cardman. After capture, the spacecraft will be installed on the Unity module’s Earth-facing port for cargo unloading.

This mission will be the first flight of the Cygnus XL, the larger, more cargo-capable version of the company’s solar-powered spacecraft. Northrop Grumman has named the spacecraft the S.S. William “Willie” C. McCool, in honor of the NASA astronaut who perished in 2003 during the space shuttle Columbia accident.

Learn more about station activities by following @NASASpaceOps and @space_station on X, as well as the International Space Station’s Facebook and Instagram accounts.

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Mark A. Garcia

Mechele Elliott Safeguards Agency Information Systems at Johnson

Mechele Elliott Safeguards Agency Information Systems at Johnson

As an IT security administrator at NASA’s Johnson Space Center in Houston, Mechele Elliott protects the information systems that support astronaut health and mission readiness.

The encouragement of a family friend set her on this path, leading to a rewarding and somewhat unexpected career in human spaceflight.

A woman wearing business casual clothing stands in front of an old space shuttle cockpit mockup.
Mechele Elliott stands in front of a space shuttle cockpit mockup in the lobby of the Mission Control Center at NASA’s Johnson Space Center in Houston. Image courtesy of Mechele Elliott

“While I was caring for my son during his cancer treatment—living in the hospital with him and supporting his recovery at home—a family friend who worked at NASA took notice,” Elliott said. “She quietly observed my strength, organization, and unwavering dedication to my son. One day she called and said, ‘Get your resume together.’”

Elliott doubted she was qualified for a position at NASA, though the friend was certain she could learn and handle anything after caring for her son. “Her belief in me gave me the courage to take that first step—and it changed the course of my life.”

The friend’s endorsement helped her land the position. Elliott was nervous at first, since she did not know much about NASA’s operations and had limited prior experience. With time and training, she grew more certain of the value she brought to the team.

“Reflecting on the numerous personal challenges I have encountered has reinforced my confidence in my ability to overcome obstacles while maintaining a positive outlook throughout my journey,” she said. “I am proud to have successfully adapted and become a productive member of my team.” In her role today, Elliott safeguards NASA’s information systems. She develops, implements, and maintains security policies, procedures, and systems in the Human Health and Performance Directorate, ensuring compliance with federal and NASA-specific security standards. Her work includes managing access control protocols and responding  to security incidents.

A woman wearing business casual clothing stands in front of a large pool that is used for astronaut training.
Mechele Elliott in the Neutral Buoyancy Laboratory at Johnson Space Center. Image courtesy of Mechele Elliott

One of her most challenging tasks involved assessing, revitalizing, and implementing four outdated security plans through collaboration with a diverse team. “We successfully aligned the security plans with established standards and garnered commendations from NASA leadership,” she said.

Outside of work, Elliott enjoys several hobbies that help her relax and maintain balance. She began painting at a young age and continues to find calm through her art. She is an avid gardener, in spite of the Houston summer heat, and feels fulfilled by the beauty of her flowers and sharing homegrown fruits and vegetables with her friends and family. She has also earned a reputation as an excellent baker. “I enjoy making cheesecakes for workplace celebrations and I’ve discovered that many of my coworkers enjoy this hobby of mine, as well!”

Elliott is profoundly grateful for the opportunity to serve at NASA for over 25 years. Looking ahead to the agency’s future, she offers an important piece of advice to up-and-coming team members. “Remain authentic to yourselves, pursue your aspirations with determination, and uphold a commitment to excellence in all your endeavors.”

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Linda E. Grimm

Progress 93 Cargo Craft Docks to Station Resupplying Crew

Progress 93 Cargo Craft Docks to Station Resupplying Crew

Sept. 13, 2025: International Space Station Configuration. Five spaceships are docked at the space station including the SpaceX Dragon cargo craft, the SpaceX Crew-11 Dragon spacecraft, the Soyuz MS-27 crew ship, and the Progress 92 and 93 resupply ships.
Sept. 13, 2025: International Space Station Configuration. Five spaceships are docked at the space station including the SpaceX Dragon cargo craft, the SpaceX Crew-11 Dragon spacecraft, the Soyuz MS-27 crew ship, and the Progress 92 and 93 resupply ships.
NASA

The unpiloted Progress 93 spacecraft arrived at aft port of the International Space Station’s Zvezda module at 1:23 p.m. EDT on Saturday.  

The Roscosmos spacecraft is delivering about three tons of food, fuel, and supplies for the Expedition 73 crew aboard the space station. It will remain docked for approximately six months before departing for a re-entry into Earth’s atmosphere to dispose of trash loaded by the crew.  

The spacecraft launched at 11:54 a.m. EDT on Sept. 11 (8:54 p.m. Baikonur time) on a Soyuz rocket from the Baikonur Cosmodrome in Kazakhstan.  

Learn more about station activities by following @NASASpaceOps and @space_station on X, as well as the International Space Station’s Facebook and Instagram accounts.

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Mark A. Garcia

Progress 93 Cargo Craft Approaching Station for Docking

Progress 93 Cargo Craft Approaching Station for Docking

Roscosmos' Progress 92 cargo craft carrying nearly 3,000 pounds of food, fuel, and supplies for the Expedition 73 crew approaches the International Space Station for an automated docking to the orbital outpost's Poisk module.
The Progress 92 cargo craft, on July 5, 2025, approaches the International Space Station for an automated docking to the orbital outpost’s Poisk module.
NASA

NASA’s live coverage of rendezvous and docking is now underway on NASA+, Amazon Prime, and more. Learn how to watch NASA content through a variety of platforms, including social media. 

The unpiloted Roscosmos Progress 93 spacecraft will automatically dock at approximately 1:27 p.m. EDT to aft port of the International Space Station’s Zvezda module.

The spacecraft launched at 11:54 a.m. EDT (8:54 p.m. Baikonur time) on Sept. 11, atop a Soyuz rocket from the Baikonur Cosmodrome in Kazakhstan. 

Learn more about station activities by following @NASASpaceOps and @space_station on X, as well as the International Space Station’s Facebook and Instagram accounts. 

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Mark A. Garcia