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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.

Astro
Physics
earth
Surface of the Sun.
Saturn

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.

Citizen Science

Learn how volunteers around the world can help NASA make scientific discoveries, no citizenship required.

High-End Computing

NASA-sponsored scientists and engineers can access computing time on the agency’s advanced supercomputers.

Opacities

Access exoplanet opacity data to study the atmospheres of distant planets.

Image of the Sun in ultraviolet.
PEGASUS Stellar Spectra

Generate complete stellar spectra, including the extreme ultraviolet portion, with the PEGASUS web tool.

News and Events

Event
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.

Event
Aug 3–8, 2025

NASA scientists will host a session at the 2025 International Geoscience and Remote Sensing Symposium (IGARSS) entitled "Synergistic Applications of VSWIR Hyperspectral and Thermal Infrared Data in Support of Future Earth Science Satellite Missions."

Event
Jul 22–25, 2025

The July 2025 Earth Science Information Partners (ESIP) meeting will cover current trends, problems, and emerging issues in Earth science data and information.

Search for NASA Science Data

NASA’s Science Mission Directorate (SMD) provides web tools to search across all of NASA’s science data, publications, software, and resources.

Science Discovery Engine

An 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.