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Space telescope

Hubble Space Telescope

Also known as HST

ObservatoriesOperational2.4 m aperture

Imagery

Saturn from Far and Near Hubble Space Telescope

2004

NASA, ESA and Erich Karkoschka University of Arizona · NASA media (public domain)

Source archive ↗

Overview

The Hubble Space Telescope is a 2.4-metre NASA–ESA observatory that has transformed astronomy from low Earth orbit since 1990.

Instruments

Observing bands

Major discoveries

  • Helped measure the accelerating expansion of the universe
  • Hubble Deep Field views of the early universe

Knowledge connections

Sources

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.