Landsat Data The Landsat archive represents the world’s longest continuous record of Earth observation data, spanning over five decades of systematic global coverage since 1972. How to Access Data Data Products Calibration & Validation Earth’s Time Machine A Foundational Dataset Data Fusion Data Tutorials Overview The Landsat program has systematicallyContinue Reading
Calibration & Validation Closely calibrated and validated data are a hallmark of the Landsat Program. For medium-resolution satellite data, Landsat is considered the “gold standard” because of the program’s tradition of rigorous, independently verified calibration that is diligently reported and documented in peer-reviewed literature. This level of calibration takes considerable effortContinue Reading
Mars and Mercury cozy up, the Leonids sparkle, and Saturn’s rings are…disappearing? Mars and Mercury get close for a conjunction, the Leonid meteor shower delights, and Saturn’s rings are…disappearing? Skywatching Highlights Nov. 12: A conjunction between Mars and Mercury Nov. 16-18: Leonid meteor shower peak viewing Nov. 23: Saturn’s ringsContinue Reading
OpenVSP Ground School Home OpenVSP OpenVSP Curve Editor OpenVSP Ground School Fundamentals Core Concepts Interface General Component Controls Modeling Introduction Wings Fuselages Stacks Pods Ellipsoids Bodies of Revolution Propellers Blanks Hinges Conformal Human Cross-Sections Skinning Wing Blending Wing Airfoil Modification Meshes and Point Clouds Designing Intent Component Sets Design VariablesContinue Reading
Explore This Section … ROSES-25 Blog Corrections to F.3 Exoplanets… Overview ROSES FAQ Solicitations ROSES Blog ROSES 2025 ROSES 2024 ROSES 2023 ROSES 2022 ROSES 2021 ROSES 2020 NAC Science Committee Team More Help & Support Advisory Committees Announcement of Opportunity Public Meetings Dual-Anonymous Peer Review Grant Stats Library andContinue Reading
Explore This Section Science Science Activation NASA Fuels Discovery from… Overview Learning Resources Science Activation Teams SME Map Opportunities More Science Activation Stories Citizen Science 6 min read NASA Fuels Discovery from Earth to Sky: One Crayon at a Time Student interns help kids color in data to learnContinue Reading
Technicians with NASA’s Exploration Ground Systems team use a crane to lift and secure NASA’s Orion spacecraft on top of the SLS (Space Launch System) rocket in High Bay 3 of the Vehicle Assembly Building at NASA’s Kennedy Space Center in Florida on Saturday, Oct. 18, 2025, for the agency’sContinue Reading
Four proposed rules could make it easier to drill for oil or harvest timber in areas where endangered species live.Continue Reading
Ridership jumped, people cut back on driving and, over the summer, the city extended the program another year.Continue Reading
About 40 minutes by boat from the Brazilian city of Belem where this year’s U.N. climate talks are being held is a community of about 500 residents who are descendants of former slaves. Many such communities, which are called quilombos, are pushing the Brazil…Continue Reading
3 min read New Citizen Science Proposals Funded in 2025 NASA has selected 10 new citizen science proposals for funding in 2025. These selections provide a preview of what’s coming next for NASA citizen science. Note that these investigations are research grants: some of them will result in new opportunitiesContinue Reading
4 min read NASA’s TESS Spacecraft Triples Size of Pleiades Star Cluster These young, hot blue stars are members of the Pleiades open star cluster and resides about 430 light-years away in the northern constellation Taurus. The brightest stars are visible to the unaided eye during evenings from October toContinue Reading
Cosmic Origins … Cosmic Origins Community O VI Science Analysis Group (O… About Community Executive Committee Science Groups News & Events Cosmic Pathfinders Opportunities Missions Studies News & Events Resources Science Analysis Group O VI O VI refers to Oxygen that has been five-times ionized, and has a doubletContinue Reading