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Spacewalk Preps, Biomedical Science as Station Boosts Orbit on Thursday

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Spacewalk Preps, Biomedical Science as Station Boosts Orbit on Thursday

ESA (European Space Agency) astronaut and Expedition 75 flight engineer Sophie Adenot is tethered to the International Space Station during a spacewalk to install a high-speed space-to-ground antenna on the Z1 truss segment above the Unity module. Adenot and NASA astronaut and Expedition 75 flight engineer Anil Menon (out of frame) spent six hours and 30 minutes replacing a failed antenna with a spare and making the precise connections needed to activate it for high-speed transmissions with mission control.
ESA astronaut Sophie Adenot is tethered to the International Space Station during a spacewalk on Aug. 25, 2026, to install a high-speed space-to-ground antenna on the Z1 truss segment above the Unity module.
NASA/Anil Menon

Preparations are ongoing for a spacewalk next week to continue external maintenance on the International Space Station. The Expedition 75 residents are also keeping up biomedical research while maintaining orbital outpost systems. Also, a U.S. cargo craft fired it thrusters on Thursday boosting the station’s orbit.

Flight engineer Sophie Adenot of ESA (European Space Agency) and station commander Jessica Meir of NASA are studying the procedures they will use when they conduct a spacewalk scheduled for 7:30 a.m. EDT on Tuesday, Sept. 1. Adenot and Meir will spend about six-and-a-half hours in the vacuum of space replacing a spacecraft navigational aid, preparing a cosmic particle detector for future upgrades, installing jumper cables to boost data-relay systems, and other tasks.

The astronauts joined NASA flight engineers Anil Menon and Jack Hathaway during the procedure reviews on Thursday and called down to mission controllers to discuss details and answer questions for next week’s spacewalk. Menon, along with his three crewmates, also studied the Canadarm2 robotic arm procedures he will use to maneuver Meir as she conducts her spacewalking tasks.

Life science was booked into the crew’s schedule on Thursday helping doctors continuously monitor crew health to detect potential space-caused issues and ensure a successful long-duration spaceflight. Meir scanned Menon’s jugular veins using the Ultrasound 3 device and measured his blood pressure as researchers on the ground monitored in real time. Adenot exercised wearing the EasyMotion-2 suit that sends electrical impulses and triggers muscle contractions to supplement a space workout. Hathaway took inventory of medical supply kits inside the Human Research Facility-1 and Human Research Facility-2 racks.

Roscosmos cosmonaut Anna Kikina wrapped up a 24-hour monitoring session and removed electrodes that tracked her heart rate and blood pressure while she worked and slept. Flight engineer Pyotr Dubrov spent his shift on life support maintenance replacing components inside the Vozdukh carbon dioxide removal device. Flight engineer Andrey Fedyaev started his shift on computer hardware and firmware updates. At the end of the day, Meir joined Fedyaev and scanned his veins with the Ultrasound 3 for more insight into microgravity’s effect on blood flow.

Northrop Grumman’s Cygnus XL cargo spacecraft fired its thrusters for 20 minutes, 43 seconds today while berthed to the Unity module lifting the International Space Station’s orbit. The orbital reboost places the orbiting lab at the correct altitude for the rendezvous and docking of the Progress 96 resupply ship due to launch in early September.

Learn more about station activities by following the space station blog, @space_station on X, as well as the ISS Facebook and ISS Instagram accounts.

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Mark A. Garcia

NASA Invites Media to Turkey Artemis Accords Signing Ceremony

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NASA Invites Media to Turkey Artemis Accords Signing Ceremony

NASA insignia
Credit: NASA

Turkey will sign the Artemis Accords during a ceremony at 2:30 p.m. EDT Monday, Aug. 31, at NASA Headquarters in Washington, becoming the 71st country signatory.

NASA Administrator Jared Isaacman will host Turkish Minister of Industry and Technology Mehmet Fatih Kacır for the ceremony, together with U.S. Department of State officials.

This event is in person only. Media interested in attending must RSVP no later than 11 a.m. on Aug. 31, to: hq-media@mail.nasa.gov. NASA’s media accreditation policy is online.

In 2020, during the first Trump Administration, 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, transparency, and coordination of civil space exploration on the Moon, Mars, and beyond.

Learn more about the Artemis Accords at:

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

-end-

Camille Gallo / Elizabeth Shaw 
Headquarters, Washington 
202-358-1600 
camille.m.gallo@nasa.gov / elizabeth.a.shaw@nasa.gov 

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Aug 27, 2026

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Jennifer M. Dooren
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NASA Headquarters

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Jennifer M. Dooren

Civil Servants Sworn in at NASA Ames

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Civil Servants Sworn in at NASA Ames

A large group of people pose for a picture inside a massive wind tunnel. There is a large American flag on the wall behind them. A few people in the front hold up the NASA "meatball" logo.
Brandon Torres Navarrete

New civil servants and guests pose for a group photo with NASA and center leadership in the National Full-Scale Aerodynamics Complex (NFAC) 80-by-120-foot test section, N221 on Aug. 24, 2026. The civil servants were sworn-in the same day in the largest swearing-in ceremony ever hosted at NASA’s Ames Research Center in California’s Silicon Valley since its inception nearly 87 years ago.

Learn more about wind tunnels at NASA Ames.

Image credit: Brandon Torres Navarrete

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9 Things to Know About NASA’s Nancy Grace Roman Space Telescope

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9 Things to Know About NASA’s Nancy Grace Roman Space Telescope

NASA’s Nancy Grace Roman Space Telescope is set to launch at 7:26 a.m. EDT on Sunday, Aug. 30. While you wait to watch the launch, brush up on some key facts about this wide-view mission.

Roman observatory being encapsulated
Teams inside the Payload Hazardous Servicing Facility at NASA’s Kennedy Space Center in Florida encapsulate the agency’s Nancy Grace Roman Space Telescope within the payload fairing on Friday, Aug. 21, 2026, ahead of mating to a SpaceX Falcon Heavy rocket. Encapsulation shields the spacecraft during rollout, ascent, and the early phases of flight. Roman will investigate dark energy and dark matter, conduct a statistical census of planetary systems, and enable a broad range of additional astrophysics research. Liftoff from Launch Complex 39A at Kennedy is targeted for no earlier than Sunday, Aug. 30, 2026.
NASA/Sydney Rohde (Rocz)

  • 01

    The mission is named after NASA’s first chief astronomer, Dr. Nancy Grace Roman.

    Roman is named after Dr. Nancy Grace Roman (1925–2018), NASA’s first chief of astronomy. She championed space-based observatories that could study the universe above Earth’s hazy atmosphere while making their data broadly available to the scientific community.
     
    While she’s known as the “mother” of the Hubble Space Telescope, Roman played an even broader role as the driving force behind NASA’s entire Great Observatories program, which included Hubble along with the Chandra X-ray Observatory and the retired Compton Gamma Ray Observatory and Spitzer Space Telescope.
     
    Her vision and leadership helped establish NASA as a world-class scientific institution and laid the foundation for generations of space telescopes that continue to expand humanity’s understanding of the cosmos.

  • 02

    Roman will transform our view of the cosmos by showing us the bigger picture.

    Roman will pair a large field of view with crisp infrared vision to scan vast, deep swaths of sky. This flagship mission is designed to help astronomers explore dark matter, dark energy, and planets outside our solar system, called exoplanets.
     
    Since each of Roman’s surveys will sample such a large volume of the cosmos, the mission will also offer practically limitless opportunities for astronomers to conduct a broad range of additional science. From objects in our outer solar system and exploding stars to growing black holes and galaxies by the billions, very little will be beyond Roman’s reach. Roman’s data will be made public as soon as it’s processed, allowing many teams to analyze it simultaneously.

  • 03

    The observatory will journey a million miles to join Webb at Lagrange point 2.

    Roman will orbit 1 million miles away at the second Sun-Earth Lagrange point (L2), the same location as NASA’s James Webb Space Telescope. At L2, gravity from the Sun and Earth works together with an object’s motion around the Sun to hold it roughly in place. This balance will give Roman a relatively steady orbit without using much fuel.
     
    Like Webb, Roman will trace out a large orbit around the actual L2 point — much larger than the Moon’s orbit around Earth — and the two will easily be kept far apart.

  • 04

    The spacecraft carries the names of more than a million people.

    This summer, everyone was invited to submit their name to be added to a memory card attached to a plaque on the Roman spacecraft. More than 1.3 million people did so and will have their names carried all the way to L2.

  • 05

    Roman will scan the skies for at least five years.

    Roman will have a primary mission lifetime of five years and is designed to support an additional five-year extended mission. Fuel is expected to be the mission’s life-limiting resource, and while NASA does not currently have an ability to service observatories at L2, Roman is designed to be refuelable.

  • 06

    Two instruments will enable myriad discoveries.

    The observatory’s Wide Field Instrument is a 300-megapixel infrared camera that will give Roman the same sharpness (angular resolution) as Hubble but with a field of view at least 100 times larger. Using this instrument, each Roman image will capture a patch of the sky about 1.5 times bigger than the apparent size of a full Moon.
     
    Roman’s Coronagraph Instrument is designed to demonstrate the most advanced technologies ever flown in space for directly imaging planets around other stars. It will block the glare from stars and make it possible for scientists to see the faint reflected light from planets in orbit around them, revealing giant worlds that are older, colder, and in closer orbits than the hot, young super-Jupiters direct imaging has mainly revealed so far.

  • 07

    Roman joins an international cohort of teamworking telescopes.

    Roman will work in tandem with many other NASA-led and international missions to provide the most complete view of our universe yet. Roman’s large panoramas will uncover interesting targets that Hubble could follow up on using infrared, visible, and ultraviolet light to offer a more comprehensive view. NASA’s James Webb Space Telescope can then use its larger mirror and more powerful vision to deliver even more detailed, ultra-sharp observations. And Roman can view regions around objects Hubble or Webb observe to offer context.
     
    Euclid, an ESA (European Space Agency) mission with key contributions from NASA, will observe a larger area of the sky than Roman, though with less detail. Since their survey areas will overlap, scientists can use Roman’s higher-quality data to apply corrections to Euclid’s, then extend these refinements over Euclid’s much larger area.
     
    Scientists can also pair Roman’s infrared data with visible-light observations from the ground-based Vera C. Rubin Observatory, a National Science Foundation–Department of Energy collaboration. That will allow astronomers to inch closer to achieving Roman-like quality over Rubin’s much greater sky coverage.
     
    By showcasing technology to directly photograph Jupiter-like exoplanets, Roman will also provide a crucial stepping stone for NASA’s Habitable Worlds Observatory concept, a flagship space telescope that would be designed to photograph Earth-like planets in other solar systems for the first time ever.

  • 08

    Watch the Roman launch live from anywhere.

    NASA will stream this event live through a variety of platforms. Learn where to watch online: nasa.gov/live. The launch broadcast will continue until approximately one hour past launch to follow the first several critical milestones post-launch.

  • 09

    NASA expects to share Roman’s first images by early 2027.

    The Roman team will complete a carefully orchestrated series of deployments, calibrations, and tests in the three months following launch before the observatory reaches its final orbit. Science operations begin once this commissioning period is completed, starting with the release of Roman’s first science images.

To learn more about the Roman mission, visit:

https://www.nasa.gov/roman

Media contact:

Claire Andreoli
NASA’s Goddard Space Flight Center, Greenbelt, Md.
claire.andreoli@nasa.gov
301-286-1940

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Aug 27, 2026
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Ashley Balzer
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Ashley Balzer
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NASA, Northrop Grumman Complete Cygnus XL Space Station Reboost

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NASA, Northrop Grumman Complete Cygnus XL Space Station Reboost

Northrop Grumman's Cygnus XL cargo craft is pictured installed to the Unity module's Earth-facing port as the International Space Station orbited 262 miles above the Atlantic Ocean off the coast of South Africa.
Northrop Grumman’s Cygnus XL cargo craft is pictured installed to the Unity module’s Earth-facing port as the International Space Station orbited 262 miles above the Atlantic Ocean off the coast of South Africa.
NASA

Northrop Grumman’s Cygnus XL spacecraft today fired its thrusters for 20 mins, 43 seconds boosting the International Space Station’s orbit. 

The Cygnus XL’s gimbaled delta velocity engine was used to adjust the space station’s altitude by 2/10-of-a-mile at apogee, or highest point of station’s orbit, and 2.6 miles at perigee, or lowest point of station’s orbit, placing the station in an orbit of 266.5 x 254.9 miles. 

The Cygnus XL spacecraft, which is supporting NASA’s Northrop Grumman Commercial Resupply Services 24 mission, arrived at the orbital complex on April 13, delivering more than 11,000 pounds of science and supplies to the space station. Cygnus will remain berthed to space station until October when it will be filled with disposal cargo, unberthed from station, and then harmlessly burn up during its destructive reentry into Earth’s atmosphere.

This reboost sets up the phasing for Progress 96 launch in early September.

Learn more about station activities by following the space station blog, @space_station on X, as well as the ISS Facebook and ISS Instagram accounts. 

Get the latest from NASA delivered every week. Subscribe here. 

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Mark A. Garcia