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By 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 Aug. 4, 2024, for Northrop Grumman’s 21st Commercial Resupply Services mission for NASA.Credit: SpaceX Media accreditation is open for the next launch to deliver NASA science investigations, supplies, and equipment to the International Space Station. A Northrop Grumman Cygnus spacecraft will launch to the orbital laboratory on a SpaceX Falcon 9 rocket for NASA.
The mission is known as NASA’s Northrop Grumman Commercial Resupply Services 23, or Northrop Grumman CRS-23. Liftoff is targeted for mid-September from Space Launch Complex 40 at Cape Canaveral Space Force Station in Florida.
Following launch, astronauts aboard the space station will use the Canadarm2 to grapple Cygnus, and the spacecraft will be installed robotically to the Unity module’s Earth-facing port for cargo unloading. The spacecraft will remain at the space station for more than two months.
Credentialing to cover prelaunch and launch activities is open to U.S. media. The application deadline for U.S. citizens is 11:59 p.m. EDT, Wednesday, Aug. 27. All accreditation requests must be submitted online at:
https://media.ksc.nasa.gov
Credentialed media will receive a confirmation email upon approval. NASA’s media accreditation policy is available online. For questions about accreditation, or to request special logistical support, email: ksc-media-accreditat@mail.nasa.gov. For other questions, please contact NASA’s Kennedy Space Center newsroom at: 321-867-2468.
Para obtener información sobre cobertura en español en el Centro Espacial Kennedy o si desea solicitor entrevistas en español, comuníquese con Antonia Jaramillo o Messod Bendayan a: antonia.jaramillobotero@nasa.gov o messod.c.bendayan@nasa.gov.
This is the 23rd spacecraft built to deliver goods to the International Space Station. In March, NASA and Northrop Grumman moved up the company’s Commercial Resupply Services-23 mission to September following damage to the Cygnus Pressurized Cargo Module during shipping for the company’s Commercial Resupply Services-22 flight.
Each resupply mission to the station delivers scientific investigations in the areas of biology and biotechnology, Earth and space science, physical sciences, and technology development and demonstrations. Cargo resupply from U.S. companies ensures a national capability to deliver scientific research to the space station, increasing NASA’s ability to conduct new investigations aboard humanity’s laboratory in space.
In addition to food, supplies, and equipment for the crew, Cygnus will deliver research, including materials to produce semiconductor crystals in space and equipment to develop improvements for cryogenic fuel tanks. Cygnus also will deliver a specialized UV light system to prevent biofilm growth and supplies to produce pharmaceutical crystals that could treat cancer and other diseases.
The International Space Station is a convergence of science, technology, and human innovation that enables research not possible on Earth. For almost 25 years, humans have continuously lived and worked aboard the International Space Station, advancing scientific knowledge and demonstrating new technologies that enable us to prepare for human exploration of the Moon and Mars.
Learn more about NASA’s commercial resupply missions at:
https://www.nasa.gov/station
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Josh Finch
Headquarters, Washington
202-358-1100
joshua.a.finch@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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Last Updated Aug 18, 2025 EditorJessica TaveauLocationNASA Headquarters Related Terms
Commercial Resupply International Space Station (ISS) ISS Research Northrop Grumman Commercial Resupply View the full article
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By NASA
4 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
NuCLEUS, developed by Interstellar Lab, is an autonomous system that grows microgreens, vegetables, and more for astronauts to eat in space.Interstellar Lab NASA invests in technologies that have the potential to revolutionize space exploration, including the way astronauts live in space. Through the Deep Space Food Challenge, NASA, in partnership with CSA (Canadian Space Agency), sought novel food production systems that could provide long-duration human space exploration missions with safe, nutritious, and tasty food. Three winners selected last summer are now taking their technology to new heights – figuratively and literally – through commercial partnerships.
Interstellar Lab of Merritt Island, Florida, won the challenge’s $750,000 grand prize for its food production system NuCLEUS (Nutritional Closed-Loop Eco-Unit System), by demonstrating an autonomous operation growing microgreens, vegetables, and mushrooms, as well as sustaining insects for use in an astronaut’s diet. To address the requirements of the NASA challenge, NuCLEUS includes an irrigation system that sustains crop growth with minimal human intervention. This end-to-end system supplies fresh ingredients to support astronauts’ health and happiness, with an eye toward what the future of dining on deep space missions to Mars and the Moon may look like.
Since the close of the challenge, Interstellar Lab has partnered with aerospace company Vast to integrate a spinoff of NuCLEUS, called Eden 1.0, on Haven-1, a planned commercial space station. Eden 1.0 is a plant growth unit designed to conduct research on plants in a microgravity environment using functions directly stemming from NuCLEUS.
“The NASA Deep Space Food Challenge was a pivotal catalyst for Interstellar Lab, driving us to refine our NuCLEUS system and directly shaping the development of Eden 1.0, setting the stage for breakthroughs in plant growth research to sustain life both in space and on Earth,” said Barbara Belvisi, founder and CEO of Interstellar Lab.
Fuanyi Fobellah, one of the “Simunauts” from The Ohio State University who tested food production technologies as part of the Deep Space Food Challenge, removes a cooked omelet from the SATED appliance.NASA/Savannah Bullard Team SATED (Safe Appliance, Tidy, Efficient & Delicious) of Boulder, Colorado, earned a $250,000 second prize for its namesake appliance, which creates an artificial gravitational force that presses food ingredients against its heated inner surface for cooking. The technology was developed by Jim Sears, who entered the contest as a one-person team and has since founded the small business SATED Space LLC.
At the challenge finale event, the technology was introduced to the team of world-renowned chef and restaurant owner, José Andrés. The SATED technology is undergoing testing with the José Andrés Group, which could add to existing space food recipes that include lemon cake, pizza, and quiche. The SATED team also is exploring partnerships to expand the list of ingredients compatible with the appliance, such as synthetic cooking oils safe for space.
Delicious food was a top priority in the Deep Space Food Challenge. Sears noted the importance of food that is more than mere sustenance. “When extremely high performance is required, and the situations are demanding, tough, and lonely, the thing that pulls it all together and makes people operate at their best is eating fresh cooked food in community.”
Team Nolux won a $250,000 second-place prize for its Nolux food system that uses artificial photosynthesis to grow ingredients that could be used by astronauts in space.OSU/CFAES/Kenneth Chamberlain Team Nolux, formed from faculty members, graduate, and undergraduate students from the University of California, Riverside, also won a $250,000 second prize for its artificial photosynthesis system. The Nolux system – whose name means “no light” – grows plant and fungal-based foods in a dark chamber using acetate to chemically stimulate photosynthesis without light, a capability that could prove valuable in space with limited access to sunlight.
Some members of the Nolux team are now commercializing select aspects of the technology developed during the challenge. These efforts are being pursued through a newly incorporated company focused on refining the technology and exploring market applications.
A competition inspired by NASA’s Deep Space Food Challenge will open this fall.
Stay tuned for more information: https://www.nasa.gov/prizes-challenges-and-crowdsourcing/centennial-challenges/
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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
Dr. Steven “Steve” Platnick stepped down from his role at NASA on August 8, 2025, after more than three decades of public service. Steve began his career at NASA as a physical scientist at Goddard Space Flight Center in 2002. He moved to the Earth Science Division in 2009, where he has served in various senior management roles, including as the Earth Observing System (EOS) Senior Project Scientist. In this role, he led the EOS Project Science Office and continued periodic meetings of the EOS Project Scientists, initiated by Michael King during his tenure. Steve expanded these meetings to include representatives of non-EOS Earth observing missions and representatives from Earth Science Mission Operations (ESMO). In addition, Steve was named Deputy Director for Atmospheres in the Earth Science Division in January 2015 and served in this position until July 2024.
Dr. Steve Platnick Image credit: NASA During his time at NASA, Steve played an integral role in the development, sustainability, and advancement of NASA’s Earth Observing System platforms. From January 2003 – February 2010, Steve served as Deputy Project Scientist for Aqua. In this role, he applied his expertise in theoretical and experimental studies of satellite, aircraft, and ground-based cloud remote sensing to improve algorithms to benefit the data gathered from remote observing systems.
Taking the Lead to Improve Algorithms
Steve was actively involved in the Moderate Resolution Imaging Spectroradiometer (MODIS) Science Team, serving as the MODIS Atmosphere Team Lead. Steve helped advance several key components of the MODIS instrument, which flies on NASA’s Terra and Aqua platforms. He led a team that enhanced, maintained, and evaluated MODIS algorithms that support the Level-2 (L2) Cloud Optical/Microphysical Properties components (e.g., COD06 and MYD06) for MODIS on Terra and Aqua. The algorithms were designed to retrieve thermodynamic phase, optical thickness, effective particle radius, and water path for liquid and ice clouds. The team’s work also contributes to L3 products that address cloud mask, aerosols, clouds, and clear sky radiance for data within 1° grids over one-day, eight-day, and one-month repeat cycles. Under Steve’s leadership, the team also developed L2 products (e.g., MODATML2 and MYDATML2) that include essential atmosphere datasets of samples collected at 5–10 km (3–6 mi) that is consistent with L3 products to ease storage requirements of core atmospheric data.
Steve is also a member of the Suomi-National Polar-orbiting Partnership (Suomi NPP) Atmosphere Team, working on operational cloud optical and microphysical products. In this role, he contributed to algorithm development and refinement for the Cloud Product. In particular, he helped address a critical gap in the Visible Infrared Imaging Radiometer Suite (VIIRS) spectral channel, which was not designed to collect information for carbon dioxide (CO2) slicing and water vapor data in the same way as MODIS. Steve and his colleagues developed a suite of L2 algorithms for the spectral channels that were common to both MODIS and VIIRS to address cloud mask and cloud optical/microphysical properties. Through these efforts, the project has established a continuous cloud data record gathered from both instruments from 2017 to the present.
Steve also participated in numerous other working groups during the past 30 years. He participated in the Global Energy and Water Exchanges (GEWEX) Cloud Assessment Working Group (2008–present), Arctic Radiation-Cloud-Aerosol-Surface Interaction Experiment (ARCSIX) Science Team (2023–present), ObseRvations of Aerosols above CLouds and their intEractionS (ORACLES) Earth–Venture Suborbital (EVS)-2 Science Team (2014–2023), Deep Space Climate Observatory (DSCOVR) Science Team (2014–present), Plankton, Aerosol, Cloud, ocean Ecosystem (PACE) Science Team (2014–2023), PACE Science Definition Team, Deputy Chair (2011–2012), Glory Science Team (2010–2014) NASA Observations for Modeling Intercomparison Studies (obs4MIPs) Working Group (2011), Advanced Composition Explorer (ACE) Science Definition Team (2009–2011), and Geostationary Operational Environmental Satellites (GOES) R-series Advanced Baseline Imager (ABI) Cloud Team (2005–2009).
Steve has also participated in numerous major airborne field campaigns in various roles, including: GSFC Lidar Observation and Validation Experiment (GLOVE, 2025), PACE Postlaunch Airborne eXperiment (PAX, 2024), the Westcoast & Heartland Hyperspectral Microwave Sensor Intensive Experiment (WH2yMSIE, 2024), ORACLES Science Team (2015–2019), Studies of Emissions and Atmospheric Composition, Clouds and Climate Coupling by Regional Surveys (SEAC4RS) Science Team (2011–2015), Tropical Composition, Cloud and Climate Coupling (TC4) Management Team (2007), Cirrus Regional Study of Tropical Anvils and Cirrus Layers – Florida Area Cirrus Experiment (CRYSTAL-FACE) Science Management Team (2002), Southern Africa Fire-Atmosphere Research Initiative (SAFARI, 2000), First ISCCP Regional Experiment (FIRE) Arctic Cloud Experiment (ACE) (1998), Mikulski Archive for Space Telescopes (MAST, 1994), and ACE (1992).
Supporting Earth Science Communications
Through his senior leadership roles within ESD Steve has been supportive of the activities of NASA’s Science Support Office (SSO). He has participated in many NASA Science exhibits at both national and international scientific conferences, including serving as a Hyperwall presenter numerous times. He has met with task leaders frequently and has advocated on behalf of the SSO to management at NASA Headquarters, GSFC, and Global Sciences & Technology Inc.
For The Earth Observer newsletter publication team in particular, Steve replaced Michael King as Acting EOS Senior Project Scientist in June 2008, taking over the authorship of “The Editor’s Corner” beginning with the May–June 2008 issue [Volume 20, Issue 3]. The Acting label was removed beginning with the January–February 2010 issue [Volume 22, Issue 1]. Steve has been a champion of continuing to retain a historical record of NASA meetings to maintain a chronology of advances made by different groups within the NASA Earth Science community. He was supportive of the Executive Editor’s efforts to create a series called “Perspectives on EOS,” which ran from 2008–2011 and told the stories of the early years of the EOS Program from the point of view of those who lived them. He also supported the development of articles to commemorate the 25th and 30th anniversary of The Earth Observer. Later, Steve helped guide the transition of the newsletterfrom a print publication – the November–December 2022 issue was the last printed issue – to fully online by July 2024, a few months after the publication’s 35th anniversary. The Earth Observer team will miss Steve’s keen insight, historical perspective, and encouragement that he has shown through his leadership for the past 85 issues of print and online publications.
A Career Recognized through Awards and Honors
Throughout his career, Steve has amassed numerous honors, including the Robert H. Goddard Award for Science: MODIS/VIIRS Cloud Products Science Team (2024) and the William Nordberg Memorial Award for Earth Science in 2023. He received the Verner E. Suomi Award from the American Meteorological Society (AMS) in 2016 and was named an AMS Fellow that same year.
Steve has received numerous NASA Group Achievement Awards, including for the Cloud, Aerosol and Monsoon Processes Philippines Experiment (CAMP2Ex) Field Campaign Team (2020), Fire Influence of Regional to Global Environments and Air Quality (FIREX-AQ) Field Campaign Team (2020), ORACLES Field Campaign Team (2019), obs4MIPs Working Group (2015), SEAC4RS Field Campaign Team (2015), Advanced Microwave Scanning Radiometer for EOS (AMSR-E) Instrument Recovery Team (2013), Climate Absolute Radiance and Refractivity Observatory (CLARREO) Mission Concept Team (2012), Earth Science Constellation Red Team (2011), Science Mission Directorate ARRA Team (2011), TC4 Team (2009), MODIS Science Data Support Team (2007), Aqua Mission Team (2003), CRYSTAL-FACE Science Team (2003), and SAFARI 2000 International Leadership Team (2002).
Steve received two NASA Agency Honor Awards – the Exceptional Service Medal in 2015 and the Exceptional Achievement Medal in 2008. He was also part of the NASA Agency Team Excellence Award in 2017 for his work with the Satellite Needs Assessment Team. The Laboratory for Atmospheres honored him with the Best Senior Author Publication Award in 2001 and the Scientific Research Peer Award in 2005.
Steve received his bachelor’s degree and master’s degree in electrical engineering from Duke University and the University of California, Berkeley, respectively. He earned a Ph.D. in atmospheric sciences from the University of Arizona. He began his career at the Joint Center for Earth Systems Technology (JCET) at University of Maryland Baltimore County in 1996 as a research associate professor. He held this appointment until 2002. Steve has published more than 150 scholarly articles.
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By NASA
While it may sound like the opening to a punchline, this scientific question was at the heart of a research experiment that orbited the Moon aboard Artemis I.NASA astronaut and Expedition 65 Flight Engineer Mark Vande Hei caring for chili peppers aboard the International Space Station. NASA New research uncovers the connection between space agriculture and astronaut health. A study published in npj Microgravity shows how analyzing diverse datasets together can reveal insights that might otherwise be missed — in this case, linking space-grown food quality to astronaut nutrition and gut health.
The paper reviewed previous studies of plants grown aboard the International Space Station. The authors found that some edible plants grown in low Earth orbit have lower concentrations of essential nutrients, like calcium and magnesium, than those grown on Earth.
The reduced levels of these nutrients could make crops not as effective in mitigating the bone loss and reduced immune function that astronauts encounter in space.
Working Groups Uncover Hidden Health Connections
Three Analysis Working Groups from NASA’s Open Science Data Repository collaborated to make this paper possible. These discipline-specific groups typically work independently, but this project sparked conversations among researchers with different specialties.
Researchers combined plant data, crop nutrition profiles, gut studies, and astronaut blood biomarkers — a data integration effort of the Biological and Physical Sciences Division open science model. The work also draws on data from JAXA (Japan Aerospace Exploration Agency).
For NASA, these findings offer new insights into how to feed and support astronauts in space, particularly on long-duration missions to the Moon and Mars.
Seeks Ways to Improve Space Diets
The study also examined increased intestinal permeability — often called “leaky gut” — a condition that can result from poor nutrition and may be exacerbated by the space environment. Intestinal permeability may interfere with how astronauts absorb nutrients and regulate immune responses.
If properly engineered, space-grown crops could offer a solution to these health challenges. The team outlined several potential strategies, including bioengineering plants with higher nutrient content, incorporating more antioxidant-rich species, and designing personalized nutrition plans using astronauts’ genetic information.
The study suggests targeting specific biological pathways, such as using compounds like quercetin, an antioxidant found in certain crops, to address bone health challenges at the molecular level. The approach emphasizes designing nutrition plans based on individual astronaut physiology, including how well their digestive systems can absorb nutrients.
Related Resources
Open Science Data Repository
Open Science Data Repository Analysis Working Groups (AWG)
About BPS
NASA’s Biological and Physical Sciences Division pioneers scientific discovery and enables exploration by using space environments to conduct investigations not possible on Earth. Studying biological and physical phenomenon under extreme conditions allows researchers to advance the fundamental scientific knowledge required to go farther and stay longer in space, while also benefitting life on Earth.
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