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The '''Hubble Space Telescope''' or the Hubble telescope (often referred to as '''HST''' or '''Hubble''') is a [[space telescope]] that was launched into [[low Earth orbit]] in 1990 <!-- Full date, which shuttle, etc. is in infobox and later in the article. See discussions on talk page and its archives about omission of these details. --> and remains in operation. It was not the [[Orbiting Solar Observatory|first space telescope]], but it is one of the largest and most versatile, renowned both as a vital research tool and as a public relations boon for [[astronomy]]. The Hubble telescope is named after astronomer [[Edwin Hubble]] and is one of NASA's [[Great Observatories program|Great Observatories]]. The [[Space Telescope Science Institute]] (STScI) selects Hubble's targets and processes the resulting data, while the [[Goddard Space Flight Center]] (GSFC) controls the spacecraft.<ref>{{cite web|url=http://hubblesite.org/the_telescope/hubble_essentials/|title=Hubble Essentials |website=HubbleSite.org |publisher=[[Space Telescope Science Institute]] |access-date=March 3, 2016 |archiveurl=https://web.archive.org/web/20160303194740/http://hubblesite.org/the_telescope/hubble_essentials/ |url-status=dead |archivedate=March 3, 2016}} {{PD-notice}}</ref>
Hubble features a {{cvt|2.4|m}} mirror, and its five main instruments observe in the [[ultraviolet]], [[visible spectrum|visible]], and [[near-infrared]] regions of the [[electromagnetic spectrum]]. Hubble's orbit outside the distortion of [[atmosphere of Earth|Earth's atmosphere]] allows it to capture extremely high-resolution images with substantially lower background light than ground-based telescopes. It has recorded some of the most detailed visible light images, allowing a deep view into space. Many Hubble observations have led to breakthroughs in [[astrophysics]], such as [[Hubble's law#Using Hubble space telescope data|determining the rate of expansion of the universe]].
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