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SpOC AFA conference recap: Great Power Competition, joint exercises, Space Force Generation
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By Space Force
The Department of the Air Force released additional guidance for implementation of Executive Order 14183, "Prioritizing Military Excellence and Readiness,"
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By NASA
On January 7, 2021, NASA astronaut Kate Rubins serviced samples for Bacterial Adhesion and Corrosion. This investigation looked at how spaceflight affects the formation of microbial biofilms and tested a silver-based disinfectant.NASA This November marks a quarter century of continuous human presence aboard the International Space Station, which has served as a springboard for developing a low Earth economy and NASA’s next great leaps in exploration, including human missions to the Moon and Mars. To kick off the orbiting laboratory’s silver 25th anniversary countdown, here are a few silver-themed science investigations that have advanced research and space exploration.
Antimicrobial properties
Silver has been used for centuries to fight infection, and researchers use its unique properties to mitigate microbial growth aboard the space station. Over time, microbes form biofilms, sticky communities that can grow on surfaces and cause infection. In space, biofilms can become resistant to traditional cleaning products and could infect water treatment systems, damage equipment, and pose a health risk to astronauts. The Bacterial Adhesion and Corrosion investigation studied the bacterial genes that contribute to the formation of biofilms and tested whether a silver-based disinfectant could limit their growth.
Another experiment focused on the production of silver nanoparticles aboard the space station. Silver nanoparticles have a bigger surface-to-volume ratio, allowing silver ions to come in contact with more microbes, making it a more effective antimicrobial tool to help protect crew from potential infection on future space missions. It also evaluated whether silver nanoparticles produced in space are more stable and uniform in size and shape, characteristics that could further enhance their effectiveness.
Wearable tech
Silver is a high-conductivity precious metal that is very malleable, making it a viable option for smart garments. NASA astronauts aboard the orbiting laboratory tested a wearable monitoring vest with silver-coated sensors to record heart rates, cardiac mechanics, and breathing patterns while they slept. This smart garment is lightweight and more comfortable, so it does not disturb sleep quality. The data collected provided valuable insight into improving astronauts’ sleep in space.
Silver crystals
In microgravity, there is no up or down, and weightlessness does not allow particles to settle, which impacts physical and chemical processes. Researchers use this unique microgravity environment to grow larger and more uniform crystals unaffected by the force of Earth’s gravity or the physical processes that would separate mixtures by density. The NanoRacks-COSMOS investigation used the environment aboard the station to grow and assess the 3D structure of silver nitrate crystals. The molecular structure of these superior silver nitrate crystals has applications in nanotechnology, such as creating silver nanowires for nanoscale electronics.
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Last Updated Aug 14, 2025 Related Terms
ISS Research Humans in Space International Space Station (ISS)
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By NASA
Credit: NASA
As part of the agency’s initiative to return humanity to the Moon and eventually send the first astronaut – an American – to Mars, NASA is surveying industry for interest and feedback on a fission surface power system, through a Request for Information issued Thursday.
Earlier this month, NASA declared its intent to put a nuclear reactor on the Moon by the mid-2030s to support lunar exploration, provide power generation on Mars, and strengthen national security in space.
“Today’s call for industry input is an important step toward engaging the commercial space industry in powering the lunar economy and enabling future human exploration on Mars,” said Steve Sinacore, Fission Surface Power program executive at NASA’s Glenn Research Center in Cleveland. “Developing a safe, reliable, and efficient power supply is key to unlocking the future of human space exploration and ensuring America retains its dominance in space.”
Building on its previous work, NASA will work with industry to design a fission surface power system that would provide at least 100 kilowatts of electrical power, have a mass allocation of less than 15 metric tons, and use a closed Brayton cycle power conversion system, which converts heat to electricity.
NASA’s new Fission Surface Power effort builds on more than 60 years of agency experience in exploration technology. In 2022, NASA awarded three contracts for fission surface power system concepts for the Moon. In addition, NASA has used nuclear power sources in spacecraft and rovers over the years.
The size, weight, and power capability of fission systems make them an effective continuous power supply regardless of location. Additionally, a nuclear reactor could be placed in lunar regions where sunlight cannot reach and could sustain nights on the Moon which can last more than 14 Earth days near the poles.
Nuclear power is a key element for NASA’s Artemis missions and supporting a robust lunar economy. The Request for Information invites innovators to contribute to this effort, allowing NASA to access industry expertise and bolstering American ingenuity.
Responses to the Request for Information are due Thursday, Aug. 21, and could be used to finalize a potential opportunity later this year.
The Fission Surface Power effort is managed through NASA Glenn. The power system development is funded by the agency’s Exploration Systems Development Mission Directorate Moon to Mars Program.
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Last Updated Aug 14, 2025 LocationNASA Headquarters Related Terms
Glenn Research Center Exploration Systems Development Mission Directorate Fission Surface Power View the full article
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By European Space Agency
Video: 00:04:21 Europe’s first MetOp Second Generation, MetOp-SG-A1, weather satellite – which hosts the Copernicus Sentinel-5 mission – has launched aboard an Ariane 6 rocket from the European spaceport in French Guiana. The rocket lifted off on 13 August at 02:37 CEST (12 August 21:37 Kourou time).
MetOp-SG-A1 is the first in a series of three successive pairs of satellites. The mission as a whole not only ensures the continued delivery of global observations from polar orbit for weather forecasting and climate analysis for more than 20 years, but also offers enhanced accuracy and resolution compared to the original MetOp mission – along with new measurement capabilities to expand its scientific reach.
This new weather satellite also carries the Copernicus Sentinel-5 mission to deliver daily global data on air pollutants and atmospheric trace gases as well as aerosols and ultraviolet radiation.
Ariane 6 is Europe’s heavy launcher and a key element of ESA’s efforts to ensure autonomous access to space for Europe’s citizens. Ariane 6 has three stages: two or four boosters, and a main and upper stage. For this flight, VA264, the rocket was used in its two-booster configuration.
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