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2024 AA Awards for Technology and Innovation (Group Honorable Mention)
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By NASA
Credit: NASA NASA has awarded ASCEND Aerospace & Technology of Cape Canaveral, Florida, the Contract for Organizing Spaceflight Mission Operations and Systems (COSMOS), to provide services at the agency’s Johnson Space Center in Houston.
The COSMOS is a single award, indefinite-delivery/indefinite-quantity contract valued at $1.8 billion that begins its five-year base period no earlier than Dec. 1, with two option periods that could extend until 2034. The Aerodyne Company of Cape Canaveral, Florida, and Jacobs Technology Company of Tullahoma, Tennessee, are joint venture partners.
Work performed under the contract will support NASA’s Flight Operation Directorate including the Orion and Space Launch System Programs, the International Space Station, Commercial Crew Program, and the Artemis campaign. Services include Mission Control Center systems, training systems, mockup environments, and training for astronauts, instructors, and flight controllers.
For more information about NASA and agency programs, visit:
https://www.nasa.gov
-end-
Tiernan Doyle
Headquarters, Washington
202-358-1600
tiernan.doyle@nasa.gov
Chelsey Ballarte
Johnson Space Center, Houston
281-483-5111
chelsey.n.ballarte@nasa.gov
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Last Updated Aug 28, 2025 LocationNASA Headquarters Related Terms
Johnson Space Center Artemis Commercial Crew International Space Station (ISS) ISS Research Johnson Flight Operations Space Launch System (SLS) View the full article
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By NASA
Explore This Section Earth Earth Observer Editor’s Corner Feature Articles Meeting Summaries News Science in the News Calendars In Memoriam Announcements More Archives Conference Schedules Style Guide 9 min read
Harmonized Landsat and Sentinel-2: Collaboration Drives Innovation
Introduction
Landsat, a joint program of NASA and the U.S. Geological Survey (USGS), has been an invaluable tool for monitoring changes in Earth’s land surface for over 50 years. Researchers use instruments on Landsat satellites to monitor decades-long trends, including urbanization and agricultural expansion, as well as short-term dynamics, including water use and disaster recovery. However, scientists and land managers often encounter one critical limitation of this program: Landsat has a revisit time of eight days (with Landsat 8 and 9 operating), which is too long to capture events and disasters that occur on short timescales. Floods, for example, can quickly inundate a region, and cloud cover from storms can delay Landsat’s ability to get a clear observation on damage.
In 2015, the European Space Agency’s (ESA) Copernicus Sentinel-2A mission joined Landsat 7 and 8 in orbit. It was designed to collect comparable optical land data with the intention of leveraging Landsat’s archive. Two years later, ESA launched Sentinel-2B, a satellite identical to Sentinel-2A.
Led by a science team at NASA’s Goddard Space Flight Center (GSFC), the USGS, NASA, and ESA began to work on combining the capabilities of Sentinel-2 and Landsat satellites. This idea was the impetus behind Harmonized Landsat and Sentinel-2 (HLS) project, a NASA initiative that created a seamless product from the Operational Land Imager (OLI) and Multi-Spectral Instrument (MSI) aboard Landsat and Sentinel-2 satellites, respectively. HLS Version 2.0 (V2.0) is the most recent version of these data and had a global median repeat frequency of 1.6 days in 2022 by combining observations from Landsat 8 and 9 and Sentinel-2A and B. The recent addition of Sentinel-2C data will provide even more frequent observations. With near-global coverage and improved harmonization algorithms, HLS V2.0 paves the way for new applications and improved land monitoring systems – see Animation 1. HLS data are available for download on NASA Earthdata: HLSL30v2.0 and HLSS30v2.0. These data can also be accessed through Google Earth Engine: HLSL30v2.0 and HLSS30v2.0.
Animation 1. This visualization shows the change in vegetation in Maryland from January 1 to December 30, 2016, using Normalized Difference Vegetation Index (NDVI) data from Harmonized Landsat Sentinel-2 (HLS). The visualization shows land on both sides of the Chesapeake Bay, where red represents bare soil and green indicates healthy, growing vegetation. Animation credit: Michael Taylor [Science Systems and Applications Inc. (SSAI)], Matthew Radcliff [USRA], and Jeffrey Masek [GSFC]. Caption adapted from Laura Rocchio [SSAI] The Dawn of HLS
The story of HLS begins before the launch of Sentinel-2A in 2015. Jeffrey Masek [GSFC], who was at that time project scientist for Landsat 8, led a group of researchers who wanted to find a way to harmonize Landsat data with other satellite data. Their aim was to create a “virtual constellation” similar to how weather satellites operate.
“HLS meets a need that people have been asking for for a long time,” said Masek.
What began as a research question with an experimental product evolved into an operational project with the involvement of the Satellite Needs Working Group (SNWG). SNWG is an interagency effort to develop solutions that address Earth observation needs of civilian federal agencies. Every two years, SNWG conducts a survey of federal agencies to see how their work could benefit from satellite data. The answers span the gamut of application areas, from water quality monitoring to disaster recovery to planning how best to protect and use natural resources. SNWG brings these ideas to NASA, USGS, and the National Oceanic and Atmospheric Administration (NOAA) – the three main U.S. government providers of satellite data. These agencies work together to create and implement solutions that serve those needs. NASA plays a critical role in every step of the SNWG process, including leading the assessment of survey responses from over 30 federal agencies, managing and supporting the implementation of identified solutions, and encouraging solution co-design with federal partners to maximize impact.
The HLS surface reflectance product was an outcome of the very first SNWG solution cycle in 2016. This product was expanded, following additional SNWG requests in 2020 and 2022. The 2020 cycle saw the creation of nine HLS-derived vegetation indices, and the 2022 cycle aimed for a six-hour latency product.
The U.S. Department of Agriculture (USDA) now uses HLS to map crop emergence at the field scale in the corn belt, allowing farmers to better plan their growing seasons. Ranchers in Colorado use the dataset to decide where to graze their cattle during periods of drought. HLS also informs the use and termination of cover crops in the Chesapeake Bay area. In 2024, the Federal Emergency Management Agency (FEMA) employed HLS to identify where to focus aid in the aftermath of Hurricane Helene.
A New and Improved HLS
In the July 2025 issue of Remote Sensing of Environment, a team of researchers outlined the HLS V2.0 surface reflectance dataset and algorithms. The team included seven NASA co-authors, members of the 2018–2023 Landsat Science Team, and ESA. The lead author, Junchang Ju [GSFC—Remote Sensing Scientist], has been the technical lead on HLS since its inception. Co-author Christopher Neigh [GSFC—Landsat 8/9 Project Scientist] is the principal investigator on the HLS project. V2.0, which was completed in Summer 2023, incorporates several major improvements over HLS V1.4, the most recent publicly available HLS product. HLS V1.4 covered about 30% of the global land area, providing data on North America and other select locations. HLS V2.0 provides data at a spatial resolution of 30 m (98 ft) with near-global coverage from 2013 onward. The dataset includes all land masses except Antarctica. HLS V2.0 also has key algorithmic improvements in atmospheric correction, cloud masking, and bidirectional reflectance distribution function (BRDF) correction. Together, these algorithms “harmonize” the data, or ensure that the distinct Landsat and Sentinel-2 datasets can effectively be used interchangeably – see Animation 2.
Animation 2: The visualization provides the Normalized Difference Vegetation Index (NDVI) data from Harmonized Landsat Sentinel-2 (HLS) for farm fields south of Columbus, NE. The red represents bare soil and green represents healthy, growing vegetation. The animation runs from January 1 to December 30, 2016. Animation credit: Michael Taylor [SSAI], Matthew Radcliff [USRA], and Jeffrey Masek [GSFC]. Caption adapted from Laura Rocchio [SSAI] HLS V2.0 in Action
The increased frequency of observations improved the ability of the scientific community to track disaster recovery, changes in phenology, agricultural intensification, rapid urban growth, logging, and deforestation. Researchers are already putting these advances to use.
The land disturbance product (DIST-ALERT) is a global land change monitoring system that uses HLS V2.0 data to track vegetation anomalies in near real-time – see Figure 1. DIST-ALERT captures agricultural expansion, urban growth, fire, flooding, logging, drought, landslides, and other forces of change to vegetation. Amy Pickens [University of Maryland, Department of Geographical Sciences—Assistant Research Professor] said that HLS is the perfect dataset for tracking disturbances because of the frequency of observations.
DIST-ALERT was created through Observational Products for End-Users from Remote Sensing Analysis (OPERA), a project at NASA/Jet Propulsion Laboratory (JPL). OPERA products respond to agency needs identified by the SNWG. In 2018, SNWG identified tracking surface disturbance as a key need. OPERA partnered with the Global Land Analysis and Discovery (GLAD) lab at University of Maryland to develop the change detection algorithm.
To track changes in vegetation, the DIST-ALERT system establishes a rolling baseline – meaning that for any given pixel, the vegetation cover is compared against vegetation cover from the same 31-day window in the previous three years. The primary algorithm detects any vegetation loss relative to the established baseline. A secondary algorithm flags any spectral anomaly (i.e., any change in reflectance) compared to that same baseline. This approach ensures that the algorithm catches non-vegetation change (e.g., new building or road projects in unvegetated areas). Used together, these algorithms can identify long-term changes in agricultural expansion, deforestation, and urbanization alongside short-term changes in crop harvest, drought, selective logging, and the impacts of disasters. On average, DIST-ALERT is made available on LP DAAC within six hours of when new HLS data is available. Currently, the dataset does not provide attribution to disturbances.
Figure 1. In March 2025, wildfires burned through South Korea, resulting in heavy vegetation loss. [left] Output of the DIST-ALERT product on NASA Worldview from May 8, 2025, with vegetation loss in percent flagged with varying levels of confidence. Yellow and red represent areas with confirmed vegetation cover losses of right] Natural-color image captured by the Multi-Spectral Instrument (MSI) aboard Sentinel-2C on May 8, 2025. The large brown burn scar in the center of the image corresponds to vegetation loss detected by DIST-ALERT. It stands in contrast to the surrounding green vegetation. Figure credit: NASA Earthdata Disturbance alerts already exist in some ecosystems. Brazil’s National Institute for Space Research [Instituto Nacional de Pesquisas Espaciais (INPE)] runs two projects that detect deforestation in the Amazon: Programa de Cálculo do Desflorestamento da Amazônia (PRODES) and Sistema de Detecção de Desmatamento em Tempo Real (DETER). The GLAD lab created its own forest loss alerts – GLAD-L and GLAD-S2 – using Landsat and Sentinel-2 data respectively. Global Forest Watch integrates GLAD-L and GLAD-S2 data with Radar for Detecting Deforestation (RADD) observations – derived from synthetic aperture radar data from Copernicus Sentinel-1 – into an integrated deforestation alert.
The implementation of these alert systems, some of which have been around for decades, have been shown to impact deforestation rates in the tropics. For example, a 2021 study in Nature Climate Change found that deforestation alerts decreased the probability of deforestation in Central Africa by 18% relative to the average 2011–2016 levels.
DIST-ALERT is distinct from other alert systems in a few ways. First, it has global coverage. Second, the rolling baseline allows for tracking changes in seasonality and disturbances to dynamic ecosystems. When HLS V2.0 data are input to DIST-ALERT, the system is also better at identifying disturbances in cloudy ecosystems than other individual alert systems – because it is more likely to obtain clear observations. This also enables it to identify the start and end of the disturbance more precisely.
Pickens said that the DIST-ALERT team is already working with end-users who are implementing their data product. She has spoken to some who use the system to help logging companies prove that they are complying with regulations. The U.S. Census Bureau is also using DIST-ALERT to monitor fast-growing communities so that they can do targeted assessments in the interim between the larger decennial census.
Alongside DIST-ALERT, OPERA has also been developing the Dynamic Surface Water eXtent (DSWx) product suite, which employs HLS to track surface water (e.g., lakes, reservoirs, rivers, and floods) around the globe – see Figure 2. These new products represent the new applications made possible by the HLS interagency and international collaboration.
Figure 2. The map shows flood extent and estimates of flood depth in areas west of Porto Alegre, Brazil on May 6, 2024. The flood extent is from the Observational Products for End-Users from Remote Sensing Analysis (OPERA) Dynamic Surface Water eXtent product, which uses Harmonized Landsat Sentinel-2 data. The flood depth estimate is from the Floodwater Depth Estimation Tool (FwD ET). The darkest blue areas represent floodwater at least 5 m (20 ft) deep. Much of the inundated floodplain is light blue, which equates to depths of between 0.1–1 m (4–40 in). Figure credit: Lauren Dauphin [NASA’s Earth Observatory], Dinuke Munasinghe [JPL], Sagy Cohen [University of Alabama], and Alexander Handwerger [JPL] Conclusion
HLS is set to continue improving land monitoring efforts across the globe. Meanwhile, the HLS science team is working to improve the algorithms for a more seamless harmonization of Landsat 8 and 9 and Sentinel-2 data. They are also working to improve the cloud-masking algorithm, have recently released vegetation indices, and are working on developing a low-latency (six-hour) HLS surface reflectance product, all while incorporating user feedback.
Looking ahead, the launch of future Sentinel and Landsat satellites will further the development of HLS. The additional data and unique capabilities will continue to meet researchers’ need for more frequent, high-quality satellite observations of Earth’s land surface.
Madeleine Gregory
NASA’s Goddard Space Flight Center/Science Systems and Applications Inc.
madeleine.s.gregory@nasa.gov
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Last Updated Aug 25, 2025 Related Terms
Earth Science View the full article
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By NASA
NASA Honor Award recipients are shown with their award plaques, alongside NASA Stennis Space Center Director John Bailey and Deputy Director Christine Powell, following the ceremony at NASA Stennis on Aug. 13. Pictured (left to right) is Andrew Bracey, Briou Bourgeois, Jared Grover, Robert Simmers, Robert Williams, Richard Wear, Tom Stanley, Alison Dardar, Marvin Horne, Cary Tolman, Tim Pierce, Rebecca Mataya, Bailey, Powell, Gina Ladner, and Brittany Bouche. NASA/Danny Nowlin NASA Stennis Space Center Director John Bailey speaks to employees during the NASA Honor Awards ceremony at NASA Stennis on Aug. 13. NASA/Danny Nowlin NASA Stennis Space Center Director John Bailey and Deputy Director Christine Powell presented NASA Honor Awards to employees during an onsite ceremony Aug. 13.
One NASA Stennis employee received NASA’s Outstanding Leadership Medal. The medal is awarded to government employees for notable leadership accomplishments that have significantly influenced the NASA mission.
Marvin Horne of Fulton, Maryland, received the NASA Outstanding Leadership Medal for his work in the Office of Procurement that has resulted in significant cost savings for the agency. Among his accomplishments, Horne designed, implemented, and led an integrated contract management office between NASA Stennis, NASA’s Michoud Assembly Facility in New Orleans, and NASA’s Marshall Space Flight Center in Huntsville, Alabama. The office transformed facility services from independent models to a shared model. The innovative solution was the first joint contract management office at NASA Stennis comprised of procurement, finance, and technical personnel designed to implement effective and efficient business processes. Horne currently serves as the NASA acting administrator for procurement.
Three NASA Stennis employees received NASA’s Exceptional Service Medal. The medal is awarded to government employees for sustained performance that embodies multiple contributions to NASA projects, programs, or initiatives.
Jared Grover of Diamondhead, Mississippi, received the NASA Exceptional Service Medal for his contributions to the success of the NASA Stennis E Test Complex through his dedication and technical expertise. As a NASA mechanical operations engineer, he has led various testing and facility preparation efforts, worked with challenging propellants, and trained new personnel. His work has supported numerous NASA and commercial aerospace projects Grover is also active in community outreach, promoting NASA’s mission and inspiring future engineers.
Tim Pierce of Long Beach, Mississippi, received the NASA Exceptional Service Medal following 26 years with NASA and 41 years working at NASA Stennis as a contractor and civil servant in the Center Operations Directorate. Through Pierce’s contributions, NASA Stennis became a leader in drafting agreements with external agencies, streamlining administrative procedures, and enhancing partnerships. In one notable instance, he led efforts to collaborate with county officials on a sewer treatment project that will save costs and optimize underused infrastructure. Pierce retired from NASA in January 2025.
Barry Robinson of Slidell, Louisiana, received the NASA Exceptional Service Medal in absentia for service to the nation’s space program and achievement across multiple propulsion test programs and projects. Robinson joined NASA in 1994 and worked on the space shuttle main engine test project, eventually becoming a test operations consultant. Over the years, Robinson held various roles, including chief of the NASA Stennis Mechanical Engineering Branch and project manager for projects supporting NASA’s SLS (Space Launch System) rocket for Artemis missions to the Moon and beyond. Robinson retired from NASA in December 2024.
One NASA Stennis employee received NASA’s Exceptional Engineering Achievement Medal. The medal is awarded to both government and non-government individuals for exceptional engineering contributions toward achievement of NASA’s mission.
Richard Wear of Slidell, Louisiana, received the NASA Exceptional Engineering Achievement Medal for his contributions to the NASA Stennis Engineering and Test Directorate. Wear serves as the subject matter expert in thermal and fluid systems analysis. In that role, he has greatly contributed to facilitating the use of liquid natural gas propellant in testing onsite, including by developing a Cryogenics in Propulsion Testing training course to support future test projects and programs. His contributions have significantly enhanced NASA’s support for commercial partners at NASA Stennis.
Eight NASA Stennis employees received NASA’s Exceptional Achievement Medal. This medal is awarded to any government employee for a significant specific achievement or substantial improvement in operations, efficiency, service, financial savings, science, or technology which contributes to the mission of NASA.
Leslie Anderson of Picayune, Mississippi, received the NASA Exceptional Achievement Medal in absentia for leadership and customer service as the lead accountant in the Office of the Chief Financial Officer at NASA Stennis. Anderson has successfully managed critical financial activities with technical expertise, project management, and strong customer service skills. Her efforts help maintain federal partnerships worth approximately $70 million annually and contribute to the success of NASA Stennis, demonstrating NASA’s core values of integrity, teamwork, excellence, and inclusion.
Alison Dardar of Diamondhead, Mississippi, received the NASA Exceptional Achievement Medal for innovation in improving financial and technical processes associated with the $1 billion-plus consolidated operations and maintenance contract for NASA Stennis and NASA’s Michoud Assembly Facility in New Orleans. As senior budget analyst in the NASA Stennis Office of the Chief Financial Officer, Dardar led in identifying and addressing key reporting and accounting issues related to the contract. Her innovations resulted in a 55% improvement in cost reporting accuracy and $20 million in savings to the contract.
Gina Ladner of Diamondhead, Mississippi, received the NASA Exceptional Achievement Medal for management, problem solving, and leadership during a year-long detail as chief of the NASA Stennis Facilities Services Division. During the year, Ladner led the division team through numerous changes and tackled unexpected challenges, including a severe weather event that featured confirmed tornados onsite and a contractor work stoppage activity, to ensure ongoing site operations. She also led in numerous infrastructure investments, including repairs to roadways, fire systems, and communications equipment.
Rebecca Mataya of Carriere, Mississippi, received the NASA Exceptional Achievement Medal for service as a budget analyst in the NASA Stennis Office of the Chief Financial Officer in improving processes and operations. As an analyst on the procurement development team for a new operations, services, and infrastructure contract, Mataya identified creative methods to increase cost savings and maximize facility projects. She also has helped secure over $408 million for facility improvements, enhancing water systems, power generation, and more.
Tom Stanley of Biloxi, Mississippi, received the NASA Exceptional Achievement Medal for contributions to improve NASA’s technology transfer process. As the NASA Stennis technology transfer officer, he developed a tool to standardize and automate evaluation of software usage agreements, reducing costs by 10 times and evaluation time by 75%. The changes led to record numbers of agreements awarded. Stanley also created a tool for contract closeouts, which has contributed to cost savings for the agency.
Cary Tolman of Fort Walton Beach, Florida, received the NASA Exceptional Achievement Medal for work in the NASA Office of the General Counsel. Beyond her role as procurement attorney, Tolman established a software and management audit review team to provide consistent and timely legal advice on software licenses and terms. Tolman’s work has helped NASA save $85 million and simplified legal support for software issues while reducing cybersecurity and financial risk.
Casey Wheeler of Gulfport, Mississippi, received the NASA Exceptional Achievement Medal for leadership and innovation in replacing the high pressure water industrial water system that supports crucial testing facilities at NASA Stennis. As project manager in the NASA Stennis Center Operations Directorate, Wheeler showcased his planning and coordination skills by completing the complex project without delaying rocket engine testing. His work restored the system to full design pressure in an area that directly supports NASA’s SLS (Space Launch System) rocket through RS-25 engine testing, and other critical projects.
Dale Woolridge of Slidell, Louisiana, received the NASA Exceptional Achievement Medal in absentia for contributions as project manager in the NASA Stennis Center Operations Directorate. Woolridge successfully led multiple construction projects, completing them on time and within budget. One notable project was the refurbishment of the miter gates at NASA Stennis’ navigational lock, which supports NASA’s rocket engine testing operations. The team completed the refurbishment ahead of schedule and within budget, ensuring minimal disruption to NASA operations.
Four NASA Stennis employees received NASA’s Early Career Achievement Medal. The medal is awarded to government employees for unusual and significant performance during the first 10 years of an individual’s career in support of the agency.
Briou Bourgeois of Pass Christian, Mississippi, received the NASA Early Career Achievement for his contributions in the NASA Stennis Engineering and Test Directorate. Bourgeois joined NASA in 2017 and has worked on various projects, including the SLS (Space Launch System) core stage Green Run test series and RS-25 engine testing for Artemis missions. Bourgeois played a key role in modifying the liquid oxygen tanking process during the SLS core stage series. He has since become test director in the NASA Stennis E Test Complex and a leader in commercial test projects at NASA Stennis.
Brandon Ladner of Poplarville, Mississippi, received the NASA Early Career Achievement Medal for contributions to the Exploration Upper Stage Test Project on the Thad Cochran Test Stand at NASA Stennis. As the NASA lead mechanical design engineer for the project, Ladner has significantly contributed to the design and build-up of the B-2 position of the Thad Cochran Test Stand in preparation for Green Run testing of the new SLS (Space Launch System) upper stage. He has led in completion of numerous large design packages and provided valuable engineering oversight to improve construction schedule.
Robert Simmers of Slidell, Louisiana, received the NASA Early Career Achievement for his expertise and versatility since joining NASA in 2015 as a member of the NASA Stennis Safety and Mission Assurance Directorate team. He serves as the safety point of contact for the Thad Cochran Test Stand (B-2). In that role, he supported all operations during Green Run testing of NASA’s SLS (Space Launch System) core stage. Simmers also has supported safety audits at various NASA centers. In 2020, he became the NASA Stennis explosive safety officer responsible for explosive safety and compliance.
Robert Williams of Gulfport, Mississippi, received the NASA Early Career Achievement for his work in the NASA Stennis Engineering and Test Directorate. Williams has worked with NASA for eight years, serving as a lead mechanical design engineer for several commercial test projects. Williams is recognized as a subject matter expert in structural systems and has contributed to various NASA Stennis projects, providing technical and modeling expertise.
Two NASA Stennis employees received NASA’s Silver Achievement Medal. The medal is awarded to any government or non-government employee for a stellar achievement that supports one or more of NASA’s core values, when it is deemed to be extraordinarily important and appropriate to recognize such achievement in a timely and personalized manner.
Brittany Bouche of Slidell, Louisiana, received the NASA Silver Achievement Medal for contributions in the NASA Stennis Center Operations Directorate. Bouche has held multiple key roles in the Facilities Services Division, including acting deputy, maintenance and operations lead, and project manager for several construction projects. She has successfully led various design and construction projects, completing them on time and within budget. These include a $9.1 million sewage system and treatment repair project, successfully completed with minimal service impact.
Andrew Bracey of Picayune, Mississippi, received the NASA Silver Achievement Medal for contributions as a NASA electrical design engineer at NASA Stennis. He has provided critical design support for work related to Green Run testing of the new SLS (Space Launch System) exploration upper stage. Bracey also has been crucial to the NASA Stennis vision of supporting commercial aerospace testing, leading preliminary design reviews for multiple projects onsite.
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Last Updated Aug 14, 2025 EditorNASA Stennis CommunicationsContactC. Lacy Thompsoncalvin.l.thompson@nasa.gov / (228) 688-3333LocationStennis Space Center Related Terms
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By NASA
Credit: NASA NASA has selected KBR Wyle Services, LLC of Fulton, Maryland, to provide services to the Human Health and Performance Directorate at the agency’s Johnson Space Center in Houston, which focuses on astronaut health, occupational health, and research that could help mitigate health risks for future human spaceflight missions.
The Human Health and Performance Contract 2 is a follow-on single-award indefinite-delivery/indefinite-quantity contract that begins its five-year period of performance on Nov. 1, with two possible option periods that could extend it through 2035. The total estimated value of the base period plus the optional periods is $3.6 billion. Leidos, Inc. of Reston, Virginia, is a subcontractor.
The contract will acquire support services for several programs, primarily at NASA Johnson. This includes the Human Research Program, International Space Station Program, Commercial Crew Program, Artemis campaign, and more. Services include ensuring crew health, safety, and performance; providing occupational health services; and conducting research into mitigating risks to the health, safety, and performance of future spaceflight crews.
The Human Health and Performance Directorate leads the global spaceflight community in protecting astronaut health and enabling human mission performance. Its vision focuses on humans living, working, and thriving in space, on the Moon and on to Mars, and its mission is to lead the global spaceflight community in protecting astronaut health and enabling human mission performance.
For more information about NASA and agency programs, visit:
https://www.nasa.gov
–end–
Tiernan Doyle
Headquarters, Washington
202-358-1600
tiernan.doyle@nasa.gov
Victoria Segovia
Johnson Space Center, Houston
281-483-5111
victoria.segovia@nasa.gov
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Last Updated Aug 11, 2025 LocationNASA Headquarters Related Terms
Johnson Space Center Human Health and Performance NASA Centers & Facilities View the full article
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By NASA
3 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
From left to right, Astronaut Tracy Dyson, Jeremy Shidner, Sara R. Wilson, and Christopher Broadaway pose for a photo after the 2025 Silver Snoopy Awards ceremony. NASA/Mark Knopp Three employees from NASA’s Langley Research Center in Hampton, Virginia recently earned the Silver Snoopy award, a prestigious honor given to NASA employees and contractors across the agency for exceptional achievements related to spaceflight safety or mission success. Christopher Broadaway, Jeremy Shidner, and Sara Wilson received the awards during a ceremony held at the center on July 22.
The Silver Snoopy award is given personally by NASA astronauts and is presented to less than one percent of the agency’s workforce annually. The award is one of several overseen by the Space Flight Awareness (SFA) Program at NASA. Established in 1963, the SFA Program is vital in ensuring quality and flight safety of America’s space program. The SFA Program works to highlight the individuals behind the success of NASA’s programs as well as motivate the next generation of innovators and cosmic explorers.
Astronaut Tracy Dyson visited Langley to present the Silver Snoopy lapel pin and a framed Silver Snoopy certificate. Dyson flew aboard the space shuttle Endeavor on STS-118, served as flight engineer for Expedition 23/24, and conducted hundreds of hours of scientific investigations aboard the International Space Station for Expedition 70/71. She has spent a total of 373 days in space and dedicated over 23 hours to spacewalks.
As a flight engineer with substantial experience, Dyson understands the importance of space flight safety.
“Those who are receiving this award didn’t do it because they came nine to five and left. It’s not because it was just their job,” she said. “It’s because it’s their life, and our lives are safer and better for it.”
Astronaut Tracy Dyson signs certificates of appreciation prior to the 2025 Silver Snoopy Awards ceremony. NASA/Mark Knopp Silver Snoopy recipient and aerospace engineer Jeremey Shidner echoed Dyson’s perspective.
“This level of trust is particularly profound because astronauts understand better than anyone the countless systems, procedures, and people that must work flawlessly for a mission to succeed,” he said. “When astronauts single someone out for recognition, it reflects their confidence that this person embodies the same commitment to excellence and safety that they themselves must maintain.”
The prestigious award consists of a certificate of appreciation signed by Dyson, an authentication letter, and a miniature sterling silver lapel pin in the shape of the well-loved character Snoopy from the comic strip “Peanuts.” Each pin awarded has flown in space. The pins awarded to Langley’s recipients flew aboard STS-118.
The 2025 Silver Snoopy Award pins NASA/Mark Knopp Here are the three award recipients from Langley and their achievements:
Christopher Broadaway: For exemplary support in assisting the Commercial Crew Program ensure safety and mission success in industry partners’ human spaceflight missions.
Jeremy Shidner: For significant contributions to the Commercial Crew Program to ensure flight safety and mission success for Entry, Descent, and Landing. Collaborating closely with the Crew Flight Test team and Mission Operations Flight Dynamics Officers, he refined the simulation model to incorporate real pilot performance data, which resulted in increased entry accuracy, eliminating an elevated risk to crew safety.
Sara R. Wilson: For engineering excellence in the application of advanced statistical tools and methods characterizing NASA’s human spaceflight missions. She also played a key role in developing standardized tests for advanced lunar spacesuit gloves, creating consistency in evaluating materials for extreme lunar environments.
Sarah Reeps and Layla Smith
NASA Langley Research Center
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Last Updated Aug 07, 2025 Related Terms
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