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Hubble25 is a 2015 documentary about the history of the Hubble Space Telescope, produced by NASA Television.

The documentary was released in April 2015 to commemorate the 25th anniversary of the Hubble Space Telescope.

Background
The Hubble Space Telescope (often referred to as HST or Hubble) is a space telescope that was launched into low Earth orbit in 1990 and remains in operation. It was not the first space telescope, but it is one of the largest and most versatile and is well known as both a vital research tool and a public relations boon for astronomy. The Hubble telescope is named after astronomer Edwin Hubble and is one of NASA's Great Observatories, along with the Compton Gamma Ray Observatory, the Chandra X-ray Observatory, and the Spitzer Space Telescope.

Hubble features a 2.4-meter (7.9 ft) mirror, and its four main instruments observe in the ultraviolet, visible, and near infrared regions of the electromagnetic spectrum. Hubble's orbit outside the distortion of Earth's atmosphere allows it to take 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 determining the rate of expansion of the universe.

Synopsis
NASA stated that "In its quarter-century in orbit, the Hubble Space Telescope has transformed the way we understand the Universe, helped us find our place among the stars, and paved the way to incredible advancements in science and technology. The Hubble story is a human story. Hubble overcame much adversity early on in its mission and demonstrated the great heights NASA is capable of achieving against all odds. Much of that is thanks to the “Hubble Heroes”, including scientists, engineers, and the brave astronauts who flew five Space Shuttle missions to service Hubble."

Production
The documentary has a length of 32 minutes.

Release
The documentary was released in April 2015.

The documentary is available for streaming on Hulu.

Reception
The documentary received coverage from SpaceRef and All That's Interesting.