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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
Astrophysics
Explore NASA’s astrophysics data repositories, including exoplanet, extragalactic, and high-energy data.
Physics
Biological and Physical Sciences
Access open NASA data for biological and physical sciences, including human spaceflight studies.
earth
Earth Science
Discover NASA’s collection of Earth science data and tools on the EarthData website.
Surface of the Sun.
Heliophysics
Explore NASA’s stores of data and tools for heliophysics, space physics, and space weather through the Heliophysics Data Portal.
Saturn
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.

Galaxies

Citizen Science

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

High End Computing

High-End Computing

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

Hubble Space Telescope view of clouds in the Large Magellanic Cloud.

Science Cloud

A single, unified NASA cloud computing environment that accelerates science discovery.

Interdisciplinary Data Sites

Other resources for finding and using NASA science data that are not run by a single scientific division.

Earth with magnetic field lines.

Astronomy and Geodesy

Explore science data relating to astronomy and geodesy, the study of Earth’s characteristics and position in space.

opacities

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 Phoenix EUV Grid and Stellar UV Spectra (PEGASUS) web tool.

Artist's impression of a supermassive black hole.

ACROSS

The Astrophysics Cross-Observatory Science Support (ACROSS) center coordinates NASA resources for time-domain and multimessenger astrophysics.

News and Events

News
June 2026 Science Data and Software Highlights

Selected monthly updates about NASA science data and resources, including a New Horizons data release, a new Swift point source catalog, and updates to biological data visualization tools.

News
May 2026 Science Data and Software Highlights

Selected monthly updates about NASA science data and resources, including visualizations of Artemis I radiation data, Bennu sample updates, and newly released biological and physical sciences datasets.

News
April 2026 Science Data and Software Highlights

Selected monthly updates about NASA Science data and resources, including updated biological data pipelines, new high-level science products for astrophysics data, and new Earthdata Forum features.

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.