NASA's Data Repositories is an active archive that provides information and data from 1961 (Mercury Project) through current flight and flight analog studies

The World Data System provides a data portal search across scientific data catalogs.

The CSSDP project provides space scientists with access to a wide range of space data, observations, and investigative tools. It provides a seamless, single- point of access to these resources through a custom web portal.

The Canadian Astronomy Data Center contains a wealth of information used for astronomy research.

The ESO/ST-ECF science archive is a joint collaboration of the European Organisation for Astronomical Research in the Southern Hemisphere (ESO) and the Space Telescope - European Coordinating Facility (ST-ECF).

The National Space Science Data Center serves as the permanent archive for NASA space science mission data.

The SIMBAD astronomical database provides basic data, cross-identifications, bibliography and measurements for astronomical objects outside the solar system.

The National Geophysical Data Center (NGDC), located in Boulder, Colorado, is a part of the US Department of Commerce (USDOC), National Oceanic & Atmospheric Administration (NOAA), National Environmental Satellite, Data and Information Service (NESDIS).

The World Ozone and Ultraviolet Radiation Data Centre (WOUDC) is one of the World Data Centres which are part of the Global Atmosphere Watch (GAW) programme of the World Meteorological Organization (WMO).