Timeline · 5 events
Space Telescope Launches
The orbiting observatories that opened new windows on the universe.
1990
Hubble Space TelescopeVisible, ultraviolet, and near-infrared from low Earth orbit.
2003
Spitzer Space TelescopeAn infrared observatory; retired in 2020.
2009
Kepler Space TelescopeDiscovered thousands of exoplanets by the transit method.
2018
TESSAn all-sky survey for transiting exoplanets.
2021
James Webb Space TelescopeThe great infrared observatory at L2.
Sources & references
The primary and reference sources this topic draws on.
- NASANational Aeronautics and Space Administration
Mission data, planetary science, space telescopes, and public-domain imagery.
Most NASA-produced imagery is in the public domain; individual items are checked for usage terms before publication.
- ESAEuropean Space Agency
European missions, observatories, and space science imagery.