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By NASA
3 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
Gateway’s HALO module at Northrop Grumman’s facility in Gilbert, Arizona, on April 4, 2025, shortly after its arrival from Thales Alenia Space in Turin, Italy. NASA/Josh Valcarcel NASA continues to mark progress on plans to work with commercial and international partners as part of the Gateway program. The primary structure of HALO (Habitation and Logistics Outpost) arrived at Northrop Grumman’s facility in Gilbert, Arizona, where it will undergo final outfitting and verification testing.
HALO will provide Artemis astronauts with space to live, work, and conduct scientific research. The habitation module will be equipped with essential systems including command and control, data handling, energy storage, power distribution, and thermal regulation.
Following HALO’s arrival on April 1 from Thales Alenia Space in Turin, Italy, where it was assembled, NASA and Northrop Grumman hosted an April 24 event to acknowledge the milestone, and the module’s significance to lunar exploration. The event opened with remarks by representatives from Northrop Grumman and NASA, including NASA’s Acting Associate Administrator for Exploration Systems Development Lori Glaze, Gateway Program Manager Jon Olansen, and NASA astronaut Randy Bresnik. Event attendees, including Senior Advisor to the NASA Administrator Todd Ericson, elected officials, and local industry and academic leaders, viewed HALO and virtual reality demonstrations during a tour of the facilities.
Dr. Lori Glaze, acting associate administrator for NASA’s Exploration Systems Development Mission Directorate, and Dr. Jon B. Olansen, Gateway Program manager, on stage during an April 24, 2025, event at Northrop Grumman’s facility in Gilbert, Arizona, commemorating HALO’s arrival in the United States. Northrop Grumman While the module is in Arizona, HALO engineers and technicians will install propellant lines for fluid transfer and electrical lines for power and data transfer. Radiators will be attached for the thermal control system, as well as racks to house life support hardware, power equipment, flight computers, and avionics systems. Several mechanisms will be mounted to enable docking of the Orion spacecraft, lunar landers, and visiting spacecraft.
Launching on top of HALO is the ESA (European Space Agency)-provided Lunar Link system which will enable communication between crewed and robotic systems on the Moon and to mission control on Earth. Once these systems are installed, the components will be tested as an integrated spacecraft and subjected to thermal vacuum, acoustics, vibration, and shock testing to ensure the spacecraft is ready to perform in the harsh conditions of deep space.
In tandem with HALO’s outfitting at Northrop Grumman, the Power and Propulsion Element – a powerful solar electric propulsion system – is being assembled at Maxar Space Systems in Palo Alto, California. Solar electric propulsion uses energy collected from solar panels converted to electricity to create xenon ions, then accelerates them to more than 50,000 miles per hour to create thrust that propels the spacecraft.
The element’s central cylinder, which resembles a large barrel, is being attached to the propulsion tanks, and avionics shelves are being installed. The first of three 12-kilowatt thrusters has been delivered to NASA’s Glenn Research Center in Cleveland for acceptance testing before delivery to Maxar and integration with the Power and Propulsion Element later this year.
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Last Updated Apr 25, 2025 ContactLaura RochonLocationJohnson Space Center Related Terms
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By European Space Agency
Image: Copernicus Sentinel-1 captured this radar image over French Guiana – home to Europe’s Spaceport in Kourou, where ESA’s Biomass mission is being prepared for liftoff on 29 April onboard a Vega-C rocket. View the full article
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By NASA
NASA astronaut and Expedition 72 Flight Engineer Don Pettit sets up camera hardware to photograph research activities inside the International Space Station’s Kibo laboratory module on March 15, 2025.Credit: NASA Media are invited to a news conference at 2 p.m. EDT Monday, April 28, at NASA’s Johnson Space Center in Houston where astronaut Don Pettit will share details of his recent mission aboard the International Space Station.
The news conference will stream live on NASA’s website. Learn how to stream NASA content through a variety of platforms.
To participate in person, U.S. media must contact the NASA Johnson newsroom no later than 5 p.m. Thursday, April 24, at 281-483-5111 or jsccommu@mail.nasa.gov. Media wishing to participate by phone must contact the newsroom no later than two hours before the start of the event. To ask questions by phone, media must dial into the news conference no later than 10 minutes prior to the start of the call. NASA’s media accreditation policy is available online.
Questions also may be submitted on social media during the news conference by using #AskNASA. Following the news conference, NASA will host a live question and answer session with Pettit on the agency’s Instagram. For more information, visit @NASA on social media.
Pettit returned to Earth on April 19 (April 20, Kazakhstan time), along with Roscosmos cosmonauts Alexey Ovchinin and Ivan Vagner. Pettit celebrated his 70th birthday on April 20. He spent 220 days in space as an Expedition 71/72 flight engineer, bringing his career total to 590 days in space during four spaceflights. Pettit and his crewmates completed 3,520 orbits of Earth over the course of their 93-million-mile journey. They also saw the arrival of six visiting spacecraft and the departure of seven.
During his time on orbit, Pettit conducted hundreds of hours of scientific investigations, including research to enhance on-orbit metal 3D printing capabilities, advance water sanitization technologies, explore plant growth under varying water conditions, and investigate fire behavior in microgravity, all contributing to future space missions.
He also spent time aboard the space station sharing his photography, often posting images to his X account. He took more than 670,000 photos during his stay.
Learn more about International Space Station research and operations at:
http://www.nasa.gov/station
-end-
Joshua Finch / Claire O’Shea
Headquarters, Washington
202-358-1100
joshua.a.finch@nasa.gov / claire.a.o’shea@nasa.gov
Chelsey Ballarte
Johnson Space Center, Houston
281-483-5111
chelsey.n.ballarte@nasa.gov
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Last Updated Apr 23, 2025 LocationNASA Headquarters Related Terms
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By NASA
3 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
A researcher inspects the interior of a male American horseshoe crab at NASA’s Kennedy Space Center in Florida. Known scientifically as Limulus polyphemus, the American horseshoe crab is vital to researchers’ understanding of the overall health of NASA Kennedy’s ecosystem.NASA They’re known as “living fossils”.
For over 450 million years, horseshoe crabs have been an ecologically vital part of our planet. They’re one of the few surviving species on Earth dating back to the dinosaurs.
At NASA’s Kennedy Space Center in Florida, the American horseshoe crab (Limulus polyphemus) is one of more than 1,500 types of animals and plants you can find living on its over 144,000 acres, the majority of which is managed by the U.S. Fish and Wildlife Service and National Park Service. Sharing a boundary with the Merritt Island National Wildlife Refuge and Canaveral National Seashore, NASA Kennedy is one of the most biologically diverse places in the United States.
The center’s land, water, and air species live alongside the symbols of America’s space program: the vital facilities and infrastructure that support the many launches at NASA Kennedy and Cape Canaveral Space Force Station as well as the rockets enabling humanity’s exploration of the cosmos.
Researchers measure the shell of a male and female American horseshoe crab at NASA’s Kennedy Space Center in Florida. Known scientifically as Limulus polyphemus, the American horseshoe crab is vital to researchers’ understanding of the overall health of NASA Kennedy’s ecosystem. Preserving NASA Kennedy’s wildlife while also fulfilling the agency’s mission requires a balanced approach. The American horseshoe crab exemplifies that balance.
Horseshoe crabs are keystone species in coastal and estuary systems like the ones surrounding Earth’s premier spaceport. By themselves, these resilient arthropods are a strong indicator of how an ecosystem is doing to support the migratory birds, sea turtles, alligators and other wildlife who rely on it for their survival.
“The presence and abundance of horseshoe crabs influence the structure and functioning of the entire ecosystem,” said James T. Brooks, an environmental protection specialist at NASA Kennedy. “Their eggs provide a vital food source for many shorebirds in coastal habitats, and their feeding activities help shape the composition of plants and animals that live at the bottom of the ocean or in rivers and lakes. Changes in horseshoe crab populations can signal broader ecological issues, such as pollution or habitat loss.”
As featured recently on NASA+, biologists survey NASA Kennedy’s beaches regularly for horseshoe crabs, counting each one they spot and tagging them with devices that lets researchers study their migration patterns and survival rates. The devices also track the crabs’ spawning activity, habitat health, and population trends, especially during peak breeding seasons in spring and summer.
All this data helps in assessing the overall health of NASA Kennedy’s ecosystem, but horseshoe crabs also play a vital role in humanity’s health. Their blue, copper-based blood contains a substance called Limulus Amebocyte Lysate, critical for detecting bacterial contamination in medical equipment, pharmaceuticals, and vaccines.
Their unique value in ensuring biomedical safety underscores why NASA Kennedy emphasizes ecological monitoring in addition to its roles in the global space economy, national defense, and space exploration.
A male and female American horseshoe crab meet during mating season at NASA’s Kennedy Space Center in Florida. Known scientifically as Limulus polyphemus, the American horseshoe crab is vital to researchers’ understanding of the overall health of NASA Kennedy’s ecosystem. NASA At NASA Kennedy, horseshoe crabs are protected and monitored through habitat restoration projects like rebuilding shorelines eroded by storms and minimizing human impact on nesting sites. These initiatives ensure that the spaceport’s operations coexist harmoniously with nature and deepen our understanding of Earth’s interconnected ecosystems.
On this Earth Day, NASA Kennedy celebrates the important role these ancient mariners play as we launch humanity’s future.
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Messod C. Bendayan
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Last Updated Apr 22, 2025 Related Terms
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By European Space Agency
A new wave of ocean scientists has embarked on an extraordinary six-week voyage aboard a majestic tall ship that set sail today from Norway bound for southern France. But this is no ordinary journey.
Thanks to this ESA Advanced Ocean Training Course, these upcoming researchers will be taking a deep dive into ocean science, empowering them with skills to harness satellite data for research, innovation and sustainable development – and preparing them to become tomorrow’s leaders and ambassadors for ocean science.
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