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Department of Defense Releases Actions to Transform Climate and Enhance Prevention of Harmful Behaviors at Military Service Academies
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By NASA
1 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
Christopher PestakCredit: NASA Christopher Pestak, program manager of the Glenn Engineering and Research Support (GEARS) contract at NASA’s Glenn Research Center in Cleveland, has received the 2025 Sustained Service Award from the American Institute of Aeronautics and Astronautics (AIAA). This award recognizes AIAA members who have given their time, dedication, and efforts in service to AIAA, the aerospace community, and the engineering profession.
Pestak oversees and coordinates the efforts of 350 contractor employees performing a wide range of scientific, engineering, and technical support work for NASA Glenn on the GEARS contract. He joined NASA in 1983 as an engineering contractor supporting the Atlas/Centaur and Shuttle/Centaur projects.
A Fellow of AIAA, Pestak serves as the deputy director for Educational Programs in AIAA Region III, which encompasses Ohio, Indiana, Michigan, Wisconsin, Kentucky, and Illinois. He will be recognized for his service during an AIAA awards ceremony in January.
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1 min read NASA Glenn’s Office of Communications Earns Top Honors
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Article 9 mins ago 10 min read 55 Years Ago: Apollo 13, Preparations for the Third Moon Landing
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By NASA
1 min read
Preparations for Next Moonwalk Simulations Underway (and Underwater)
NASA’s Office of Technology, Policy, and Strategy, shares highlights from the office in 2024, including key accomplishments and collaborations that support the NASA mission. Read the full report, NASA’s Office of Technology, Policy, and Strategy: A Year in Review 2024
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Last Updated Dec 18, 2024 EditorBill Keeter Related Terms
Office of Technology, Policy and Strategy (OTPS) View the full article
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By Space Force
The NACE program’s mission is to rapidly iterate and improve space superiority, intelligence surveillance and reconnaissance, and defensive cyber command-and-control processes and procedures.
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By European Space Agency
Image: Fit for service: Themis reusable rocket stage demonstrator View the full article
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By NASA
At Goddard Space Flight Center, the GSFC Data Science Group has completed the testing for their SatVision Top-of-Atmosphere (TOA) Foundation Model, a geospatial foundation model for coarse-resolution all-sky remote sensing imagery. The team, comprised of Mark Carroll, Caleb Spradlin, Jordan Caraballo-Vega, Jian Li, Jie Gong, and Paul Montesano, has now released their model for wide application in science investigations.
Foundation models can transform the landscape of remote sensing (RS) data analysis by enabling the pre-training of large computer-vision models on vast amounts of remote sensing data. These models can be fine-tuned with small amounts of labeled training and applied to various mapping and monitoring applications. Because most existing foundation models are trained solely on cloud-free satellite imagery, they are limited to applications of land surface or require atmospheric corrections. SatVision-TOA is trained on all-sky conditions which enables applications involving atmospheric variables (e.g., cloud or aerosol).
SatVision TOA is a 3 billion parameter model trained on 100 million images from Moderate Resolution Imaging Spectroradiometer (MODIS). This is, to our knowledge, the largest foundation model trained solely on satellite remote sensing imagery. By including “all-sky” conditions during pre-training, the team incorporated a range of cloud conditions often excluded in traditional modeling. This enables 3D cloud reconstruction and cloud modeling in support of Earth and climate science, offering significant enhancement for large-scale earth observation workflows.
With an adaptable and scalable model design, SatVision-TOA can unify diverse Earth observation datasets and reduce dependency on task-specific models. SatVision-TOA leverages one of the largest public datasets to capture global contexts and robust features. The model could have broad applications for investigating spectrometer data, including MODIS, VIIRS, and GOES-ABI. The team believes this will enable transformative advancements in atmospheric science, cloud structure analysis, and Earth system modeling.
The model architecture and model weights are available on GitHub and Hugging Face, respectively. For more information, including a detailed user guide, see the associated white paper: SatVision-TOA: A Geospatial Foundation Model for Coarse-Resolution All-Sky Remote Sensing Imagery.
Examples of image reconstruction by SatVision-TOA. Left: MOD021KM v6.1 cropped image chip using MODIS bands [1, 3, 2]. Middle: The same images with randomly applied 8×8 mask patches, masking 60% of the original image. Right: The reconstructed images produced by the model, along with their respective Structural Similarity Index Measure (SSIM) scores. These examples illustrate the model’s ability to preserve structural detail and reconstruct heterogeneous features, such as cloud textures and land-cover transitions, with high fidelity.NASAView the full article
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