Explore This Section Home Framework for Heliophysics Education About Helio Big Idea 1.1 Helio Big Idea 1.2 Helio Big Idea 1.3 Helio Big Idea 2.1 Helio Big Idea 2.2 Helio Big Idea 2.3 Helio Big Idea 3.1 Helio Big Idea 3.2 Helio Big Idea 3.3 Helio Missions Helio Topics ResourceContinue Reading
Explore This Section Home Framework for Heliophysics Education About Helio Big Idea 1.1 Helio Big Idea 1.2 Helio Big Idea 1.3 Helio Big Idea 2.1 Helio Big Idea 2.2 Helio Big Idea 2.3 Helio Big Idea 3.1 Helio Big Idea 3.2 Helio Big Idea 3.3 Helio Missions Helio Topics ResourceContinue Reading
Landsat Navigation Landsat Home Missions Landsat Next Landsat 9 Landsat 8 Landsat 7 Landsat 6 Landsat 5 Landsat 4 Landsat 3 Landsat 2 Landsat 1 News Latest News People of Landsat Q&As Newsletter Publications Data Overview Cal/Val Open Data Benefits Overview Case Studies Agriculture & Food Security Disaster Management EcosystemsContinue Reading
Landsat Navigation Landsat Home Missions Landsat Next Landsat 9 Landsat 8 Landsat 7 Landsat 6 Landsat 5 Landsat 4 Landsat 3 Landsat 2 Landsat 1 News Latest News People of Landsat Q&As Newsletter Publications Data Overview Cal/Val Open Data Benefits Overview Case Studies Agriculture & Food Security Disaster Management EcosystemsContinue Reading
Physics of the Cosmos … Physics of the Cosmos Community Welcome to the New PhysCOS… About Community Program Analysis Group (PhysPAG) Science Groups News & Events Cosmic Pathfinders Science Gaps Opportunities Missions Studies News & Events Resources Welcome to the New PhysCOS Website! 25 November 2025 Physics of theContinue Reading
Physics of the Cosmos … Physics of the Cosmos Community Resetting ROSES Due Dates… About Community Program Analysis Group (PhysPAG) Science Groups News & Events Cosmic Pathfinders Science Gaps Opportunities Missions Studies News & Events Resources Resetting ROSES Due Dates After the Government Shutdown 25 November 2025 Now thatContinue Reading
Physics of the Cosmos … Physics of the Cosmos Community ROSES-25: D.3 NuSTAR General… About Community Program Analysis Group (PhysPAG) Science Groups News & Events Cosmic Pathfinders Science Gaps Opportunities Missions Studies News & Events Resources ROSES-25: D.3 NuSTAR General Observer Program Changes to Joint Observations and POC 25Continue Reading
Physics of the Cosmos … Physics of the Cosmos Community ROSES-25 Amendment 24: F.10… About Community Program Analysis Group (PhysPAG) Science Groups News & Events Cosmic Pathfinders Science Gaps Opportunities Missions Studies News & Events Resources ROSES-25: F.10 PRISM Due Dates Reset and Other Changes 25 November 2025 F.10Continue Reading
Explore This Section … ROSES-25 Blog Amendment 25: Final Text and… 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 LibraryContinue Reading
5 min read NASA Orbiter Shines New Light on Long-Running Martian Mystery The European Space Agency’s Mars Express orbiter captured this view of Mars’ south polar ice cap Feb. 25, 2015. Three years later, the spacecraft detected a signal from the area to the right of the ice cap thatContinue Reading
Joshua Digangi Physical Scientist, Chemistry & Dynamics Branch, Science Directorate, NASA Langley Research Center About My research is on the atmospheric measurement and analysis of trace gases and humidity, with a focus on airborne platforms. As trace gas mixtures provide detailed information about emission and airmass sources, these measurements enableContinue Reading
Storytelling Kit Langley Science Personnel Storytelling Kit Data Center Storytelling Kit View or download NASA Langley’s latest science highlights and resources. Science at NASA’s Langley Research Center Pioneer. Discover. Inspire. We respond to challenges and societal needs that drive the U.S. economy, and lead to wide-ranging applications and benefits. SCIENCEContinue Reading
Yonghoon Choi Research Scientist, Contractor, Chemistry & Dynamics Branch, Science Directorate, NASA Langley Research Center My research is focused on the instrumentation/measurement and data analysis of trace gases (CO, CO2, CH4), and water vapor on aircraft. Education/Professional Experience: Contractor, NASA Langley Research Center, 2012 – Present National Institute of Aerospace,Continue Reading