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Space-based observatories

Chandra X-ray Observatory
Space telescope
Fermi Gamma-ray Space Telescope
Space telescope for gamma-ray astronomy launched in 2008
Gaia (spacecraft)
European optical space observatory for astrometry
GALEX
NASA ultraviolet space telescope
Herschel Space Observatory
European infrared space observatory for cosmology; medium-class mission in the ESA Science Programme
Hipparcos
Scientific satellite of the European Space Agency
Hubble Space Telescope
Space telescope
INTEGRAL
European gamma-ray space observatory for general astronomy; medium-class mission in the ESA Science Programme
IRAS
Infrared space observatory
James Webb Space Telescope
NASA/ESA/CSA space telescope launched in 2021
Kepler space telescope
Tenth mission of the Discovery program; optical space telescope for exoplanetology
ROSAT
Satellite X-ray telescope
Spitzer Space Telescope
Infrared space telescope
Wide-field Infrared Survey Explorer
NASA infrared-wavelength space telescope
XMM-Newton
X-ray space observatory