Data Repositories by Discipline The five scientific divisions of NASA's Science Mission Directorate (SMD) maintain repositories of data that are open for anyone to access. Astrophysics Explore NASA’s astrophysics data repositories, including exoplanet, extragalactic, and high-energy data. Biological and Physical Sciences Access open NASA data for biological and physical sciences, including human spaceflight studies. Earth Science Discover NASA’s collection of Earth science data and tools on the EarthData website. Heliophysics Explore NASA’s stores of data and tools for heliophysics, space physics, and space weather through the Heliophysics Data Portal. Planetary Science Find NASA planetary science data, tools, and resources through the Planetary Data Ecosystem (PDE). Data Services Services that support discoveries from NASA science data. Citizen Science Learn how volunteers around the world can help NASA make scientific discoveries, no citizenship required.Astrophysics Planetary Science Earth Science Heliophysics Biological and Physical Sciences Science High-End Computing NASA-sponsored scientists and engineers can access computing time on the agency’s advanced supercomputers.Astrophysics Planetary Science Earth Science Heliophysics Biological and Physical Sciences Aeronautics ResearchMission Support Science Cloud A single, unified NASA cloud computing environment that accelerates science discovery.Astrophysics Planetary Science Earth Science Heliophysics Biological and Physical Sciences Science Interdisciplinary Data Sites Other resources for finding and using NASA science data that are not run by a single scientific division. Astronomy and Geodesy Explore science data relating to astronomy and geodesy, the study of Earth’s characteristics and position in space.Astrophysics Planetary Science Earth Science Opacities Access exoplanet opacity data to study the atmospheres of distant planets.Astrophysics Planetary Science Earth Science Heliophysics PEGASUS Stellar Spectra Generate complete stellar spectra, including the extreme ultraviolet portion, with the PEGASUS web tool.Astrophysics Heliophysics News and Events View All News and Events News SciX: A New Era for NASA Research Discovery After a successful beta release period, the SciX platform has launched, making it easier for users to find scientific publications across all of NASA's science disciplines. PUBLISHED Sep 29, 2025 News NASA Science Cloud Leverages Cloud Computing for Accelerated Discovery A new cloud computing platform for NASA’s Science Mission Directorate is helping NASA-affiliated scientists speed up their research timelines with cutting-edge technology. PUBLISHED Sep 25, 2025 Event Spirit of Lyot 6 Feb 2–6, 2026 The 6th Spirit of Lyot conference will bring scientists and instrumentalists together to explore topics in astrophysics discovery. Event 4th Time Domain and Multi-Messenger Astrophysics Workshop Oct 27–30, 2025 Organized by NASA's new Astrophysics Cross-Observatory Science Support (ACROSS) initiative, this workshop aims to advance the astronomy community's observing plans for rapid follow-up of explosive transients. Search for NASA Science DataNASA’s Science Mission Directorate (SMD) provides web tools to search across all of NASA’s science data, publications, software, and resources.Science Discovery EngineAn integrated search platform to help you find what you need across NASA’s vast stores of open science data, documentation, code, and tools.Science Explorer (SciX)A digital library portal for scientific publications and software related to astronomy, Earth science, heliophysics, physics, and planetary science.
News SciX: A New Era for NASA Research Discovery After a successful beta release period, the SciX platform has launched, making it easier for users to find scientific publications across all of NASA's science disciplines. PUBLISHED Sep 29, 2025
News NASA Science Cloud Leverages Cloud Computing for Accelerated Discovery A new cloud computing platform for NASA’s Science Mission Directorate is helping NASA-affiliated scientists speed up their research timelines with cutting-edge technology. PUBLISHED Sep 25, 2025
Event Spirit of Lyot 6 Feb 2–6, 2026 The 6th Spirit of Lyot conference will bring scientists and instrumentalists together to explore topics in astrophysics discovery.
Event 4th Time Domain and Multi-Messenger Astrophysics Workshop Oct 27–30, 2025 Organized by NASA's new Astrophysics Cross-Observatory Science Support (ACROSS) initiative, this workshop aims to advance the astronomy community's observing plans for rapid follow-up of explosive transients.