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By Space Force
Chief of Space Operations Gen. Chance Saltzman visited Space Systems Command at Los Angeles Air Force Base May 22, engaging more than 500 Guardian acquirers to discuss their outsized impact on missions across the Space Force and Department of Defense.
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By Space Force
Remarks by Chief of Space Operations Gen B. Chance Saltzman at the USGIF GEOINT Symposium in St. Louis May 21, 2025.
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By NASA
When future astronauts set foot on Mars, they will stand on decades of scientific groundwork laid by people like Andrea Harrington.
As NASA’s sample return curation integration lead, Harrington is helping shape the future of planetary exploration and paving the way for interplanetary discovery.
Official portrait of Andrea Harrington. NASA/Josh Valcarcel Harrington works in NASA’s Astromaterials Research and Exploration Sciences Division, or ARES, at Johnson Space Center in Houston, where she integrates curation, science, engineering, and planetary protection strategies into the design and operation of new laboratory facilities and sample handling systems. She also helps ensure that current and future sample collections—from lunar missions to asteroid returns—are handled with scientific precision and preserved for long-term study.
“I am charged with protecting the samples from Earth—and protecting Earth from the restricted samples,” Harrington said. This role requires collaboration across NASA centers, senior leadership, engineers, the scientific community, and international space exploration agencies.
With a multidisciplinary background in biology, planetary science, geochemistry, and toxicology, Harrington has become a key expert in developing the facility and contamination control requirements needed to safely preserve and study sensitive extraterrestrial samples. She works closely with current and future curators to improve operational practices and inform laboratory specifications—efforts that will directly support future lunar missions.
Andrea Harrington in front of NASA’s Astromaterials Research and Exploration Sciences Division Mars Wall at Johnson Space Center in Houston. Her work has already made a lasting impact. She helped develop technologies such as a clean closure system to reduce contamination during sample handling and ultraclean, three-chamber inert isolation cabinets. These systems have become standard equipment and are used for preserving samples from missions like OSIRIS-REx and Hayabusa2. They have also supported the successful processing of sensitive Apollo samples through the Apollo Next Generation Sample Analysis Program.
In addition to technology development, Harrington co-led the assessment of high-containment and pristine facilities to inform future technology and infrastructural requirements for Restricted Earth Returns, critical for sample returns Mars, Europa, and Enceladus.
Harrington’s leadership, vision, and technical contribution have reached beyond ARES and have earned her two Director’s Commendations.
“The experiences I have acquired at NASA have rounded out my background even more and have provided me with a greater breadth of knowledge to draw upon and then piece together,” said Harrington. “I have learned to trust my instincts since they have allowed me to quickly assess and effectively troubleshoot problems on numerous occasions.”
Andrea Harrington in Johnson’s newly commissioned Advanced Curation Laboratory. Harrington also serves as the Advanced Curation Medical Geology lead. She and her team are pioneering new exposure techniques that require significantly less sample material to evaluate potential health risks of astromaterials.
Her team is studying a range of astromaterial samples and analogues to identify which components may trigger the strongest inflammatory responses, or whether multiple factors are at play. Identifying the sources of inflammation can help scientists assess the potential hazards of handling materials from different planetary bodies, guide decisions about protective equipment for sample processors and curators, and may eventually support astronaut safety on future missions.
Harrington also spearheaded a Space Act Agreement to build a science platform on the International Space Station that will enable planetary science and human health experiments in microgravity, advancing both human spaceflight and planetary protection goals.
Andrea Harrington at the National Academies Committee on Planetary Protection and Committee on Astrobiology and Planetary Sciences in Irvine, California. Harrington credits her NASA career for deepening her appreciation of the power of communication. “The ability to truly listen and hear other people’s perspectives is just as important as the ability to deliver a message or convey an idea,” she said.
Her passion for space science is rooted in purpose. “What drew me to NASA is the premise that what I would be doing was not just for myself, but for the benefit of all,” she said. “Although I am personally passionate about the work I am doing, the fact that the ultimate goal is to enable the fulfillment of those passions for generations of space scientists and explorers to come is quite inspiring.”
Andrea Harrington and her twin sister, Jane Valenti, as children (top two photos) and at Brazos Bend State Park in Needville, Texas, in 2024. Harrington loves to travel, whether she is mountain biking through Moab, scuba diving in the Galápagos, or immersing herself in the architecture and culture of cities around the world. She shares her passion for discovery with her family—her older sister, Nicole Reandeau; her twin sister, Jane Valenti; and especially her husband, Alexander Smirnov.
A lesson she hopes to pass along to the Artemis Generation is the spirit of adventure along with a reminder that exploration comes in many forms.
“Artemis missions and the return of pristine samples from another planetary bodies to Earth are steppingstones that will enable us to do even more,” Harrington said. “The experience and lessons learned could help us safely and effectively explore distant worlds, or simply inspire the next generation of explorers to do great things we can’t yet even imagine.”
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By Space Force
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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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