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The Hubble Space Telescope (HST) is a space telescope that was carried into orbit by the Space Shuttle Discovery in April 1990. It is named for the American astronomer Edwin Hubble. Although not the first space telescope, the Hubble 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 HST is a collaboration between NASA and the European Space Agency, 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. Space telescopes were proposed as early as 1923. The Hubble was funded in the 1970s, with a proposed launch in 1983, but the project was beset by technical delays, budget problems, and the Challenger disaster. When finally launched in 1990, scientists found that the main mirror had been ground incorrectly, severely compromising the telescope's capabilities. However, after a servicing mission in 1993, the telescope was restored to its intended quality. Hubble's position outside the Earth's atmosphere allows it to take extremely sharp images with almost no background light. Hubble's Ultra Deep Field image, for instance, is the most detailed visible-light image of the universe's most distant objects ever made. Many Hubble observations have led to breakthroughs in astrophysics, such as accurately determining the rate of expansion of the universe. The Hubble is the only telescope ever designed to be serviced in space by astronauts. To date, there have been four servicing missions. Servicing Mission 1 took place in December 1993 when Hubble's imaging flaw was corrected. Servicing missions 2, 3A, and 3B repaired various sub-systems and replaced many of the observing instruments with more modern and capable versions. However, following the 2003 Columbia Space Shuttle disaster, the fifth servicing mission was canceled on safety grounds. After spirited public discussion, NASA reconsidered this decision, and administrator Mike Griffin gave the green light for one final Hubble servicing mission. This was planned for October 2008, but in September 2008, another key component failed. The servicing mission has been postponed until May 2009 to allow this unit to be replaced as well. The planned repairs to the Hubble should allow the telescope to function until at least 2013, when its successor, the James Webb Space Telescope (JWST), is due to be launched. The JWST will be far superior to Hubble for many astronomical research programs, but will only observe in infrared, so it would complement (not replace) Hubble's ability to observe in the visible and ultraviolet parts of the spectrum.

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โˆ™ 2009-03-20 05:24:10
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Q: What is the Hubble Space Telescope?
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Related Questions

What type of optical telescope is the hubble space telescope?

The Hubble Space telescope is a reflecting telescope.


What was the hubble space telescope named after?

The Hubble Space Telescope was named after Edwin Hubble,


What type of telescope is the hubble telescope?

The Hubble Telescope is a reflecting space telescope.


What type of telescope does the Hubble space telescope use?

The Hubble Space telescope is a reflecting Telecope


What is the device that takes pictures in space?

Hubble telescope The Hubble Space Telescope.


How many hubble space telescope are there?

There is only one Hubble telescope in space.


What telescope is in space?

The Hubble Space Telescope.


What is the name of the orbiting space telescope launched in 1990?

The Hubble space telescope.The name of the telescope launched into space in 1990 is Hubble Space Telescope.


How does the Hubble telescope get into space?

The Hubble telescope went into space in the cargo bay of the Space Shuttle.


How was the Hubble Space Telescope taken into space?

== The Hubble Space Telescope what carried into space by the Space Shuttle Discovery.


What is hubble telescope?

The Hubble Space Telescope (HST; also known colloquially as "the Hubble" or just "Hubble") is a space telescope that was carried into Earth orbit by the Space Shuttle in April 1990.


Which thing is called Hubble?

It is the one kind of telescope use in space. The Hubble Space telescope, is the one of the most common used-technology in space. The Hubble Space telescope was named after Edwin Hubble.


Who is the owner of the hubble space telescope?

I think the Hubble Space Telescopes was made by the NASA but they named the Hubble Space Telescope was named by Edwid Hubble


When did they create the hubble space telescope?

they created the hubble space telescope in April 1990


Where is the Hubble Space Telescope positioned?

The Hubble Space Telescope is in orbit around the Earth.


Why was the Hubble Space Telescope related to Edwin Hubble?

Edwin P. Hubble is related to the Hubble space telescope because he suggested that we launch a telescope into space so they named it after Edwin's last name, Hubble.


Which space shuttle launched the Hubble Telescope into space?

The space shuttle Discovery launched the Hubble Telescope into space.


What is the name of our space telescope?

It is the Hubble Space Telescope.


How long is the hubble space telescope?

the Hubble space telescope is about the size and weight of a large bus.


When was the hubble space telescope sent in to space?

The Hubble telescope was launched on April 24, 1990


What is the purpose of a hubble space telescope?

The Hubble Space Telescope it used to take pictures of distant objects in space.


Is the Hubble Space Telescope a refracting telescope?

No, it isn't. The Hubble Space Telescope is a reflector. It has a primary mirror, and not a primary lens.


What is the difference between radio telescope and the Hubble space telescope?

The Hubble telescope is a reflecting optical telescope.


What year was the Hubble space telescope built?

the Hubble space telescope was built in the year 1929, named after Edwin P. Hubble.


What is the latest telescope launched into space?

it is the hubble space telescope