Hubble Space Telescope: Difference between revisions
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{{Infobox spaceflight|name=Hubble Space Telescope|mission_type=[[Space observatory]]|operator=NASA|website={{URL|https://www.nasa.gov/mission_pages/hubble/main/index.html}}|mission_duration={{time interval|April 24, 1990}} <br/> (ongoing)|manufacturer=Lockheed Martin|launch_date=April 24, 1990|launch_rocket=Space Shuttle Discovery|launch_site=Kennedy Space Center LC-39A|launch_contractor=NASA|programme=Great Observatories Program|previous_mission=None|next_mission=[[Compton Gamma-Ray Observatory]]|disposal_type=Deorbited|decay_date=2030-2040 (planned)}}
'''Hubble Space Telescope''' (HST) is the first big optical [[space observatory]] telescope. Being above the [[atmosphere]] means it can see the [[sky]] more clearly than a telescope on the ground. The atmosphere blurs starlight before it reaches [[Earth]]. Named after the astronomer [[Edwin Hubble]], the Hubble Space Telescope can observe 24 hours a day. The main [[mirror]] is 94.5 inches (2.4 meters) across. The telescope can take pictures of things so far away it would be nearly impossible to see them from anywhere else.
It was made by both [[NASA]] and the [[ESA]] working together. It is 600 km in [[Outer space|space]] and was launched on April 24, 1990. Like other things in [[low Earth orbit]] it travels at 5 miles (10 km) per second. If you were going this speed on Earth, you would be able to get from [[New York City|New York]] to [[San Francisco]] in 10 minutes. This speed creates difficulty in scheduling observations.<ref>{{Cite web|url=http://hubblesite.org/the_telescope/team_hubble/|title=HubbleSite - The Telescope - Team Hubble|website=hubblesite.org|access-date=2018-11-01}}</ref>
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* In 2004, Hubble looked back several billion years to the first galaxies in the [[Hubble Ultra Deep Field]].
* It was able to help settle the [[age of the universe]] at about 13.7 billion years. Before the Hubble, scientists only knew it was between 10 and 20 billion years old.
* It took the first picture of a [[extrasolar planet|planet outside]] our [[Solar System|solar system]], and was able to find what type of atmosphere other planets might have.
== Replacement ==
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