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The AstronomersWebb
Videos with tag Webb
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06:46
06:46
06:46

Hubble Space Telescope - Better Than Ever!

Science & Reason on Facebook: http://tinyurl.com/ScienceReason The Hubble Space Telescope Is Back - Better Than Ever! Final Servicing Mission. --- Please subscribe to Science & Reason: • http://www.YouTube.com/Best0fScience • http://www.YouTube.com/ScienceMagazine • http://www.YouTube.com/ScienceTV • http://www.YouTube.com/FFreeThinker --- "Improved Hubble Shows Evidence of Dark Matter" • http://www.youtube.com/user/tdarnell#play/uploads/2/3wluv08tDhU • http://www.deepastronomy.com/ "When Hubble Opened its New Eyes" • http://www.youtube.com/AndromedasWake • http://www.youtube.com/watch?v=9bytNgT7l8k "The Hubble Space Telescope - Rebirth of an Icon (Hubblecast 30)" • http://www.youtube.com/ESOcast • http://www.youtube.com/watch?v=Hjy7YSIH-GI --- The Hubble Space Telescope (HST) is a space telescope that was carried into orbit by the space shuttle in April 1990. It is named after 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 orbit outside the distortion of 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 ever made of the universe's most distant objects. 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. There have been five servicing missions, the last occurring in May 2009. 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 Space Shuttle Columbia accident, the fifth servicing mission was canceled on safety grounds. After spirited public discussion, NASA reconsidered this decision, and administrator Mike Griffin approved one final Hubble servicing mission. STS-125 was launched in May 2009, and installed two new instruments and made numerous repairs. The latest servicing should allow the telescope to function until at least 2014, 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 will complement (not replace) Hubble's ability to observe in the visible and ultraviolet parts of the spectrum. • http://en.wikipedia.org/wiki/Hubble_Space_Telescope .

Channels: Observational astronomy 

Added: 1797 days ago by Ordonomundi

Views: 1101 | Comments: 0

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06:42
06:42
06:42

Hubble's Successor: The James Webb Space Telescope

http://www.facebook.com/ScienceReason ... Science@ESA (Episode 4): Following The Redshift (Part 2) - Hubble's Successor: The James Webb Space Telescope. In this fourth episode of the Science@ESA vodcast series Rebecca Barnes will identify some of the key discoveries achieved with the famous Hubble Space Telescope, look at the concept of redshift, and meet a new telescope that will be used to uncover the early Universe. --- Please SUBSCRIBE to Science & Reason: • http://www.youtube.com/Best0fScience • http://www.youtube.com/ScienceTV • http://www.youtube.com/FFreeThinker --- Named in 2002 in honour of NASA's administrator during the Apollo programme, the James Webb Space Telescope (JWST) mission is a collaborative project between the National Aeronautics and Space Administration, the European Space Agency and the Canadian Space Agency. JWST will address many of the outstanding issues of modern astronomy related to the 'Early Universe' and is expected to yield scientific breakthroughs as did its predecessor, the Hubble Space Telescope. JWST will be a general-purpose observatory with a suite of astronomical infrared-sensitive instruments. Compared to existing or planned observatories, JWST will have the unique advantage of combining superb image quality throughout a wide wavelength range, a wide field of view and unparalleled photon sensitivity due to its 6.5-metre diameter telescope primary mirror. http://sci.esa.int/science-e/www/area/index.cfm?fareaid=29 --- The James Webb Space Telescope (JWST) is a planned infrared space observatory, the partial successor to the aging Hubble Space Telescope. The JWST will not be a complete successor, because it will not be sensitive to all of the light wavelengths that Hubble can see. The main scientific goal is to observe the most distant objects in the universe, those beyond the reach of either ground based instruments or the Hubble. The JWST project is a NASA-led international collaboration with contributors in fifteen nations, the European Space Agency (ESA) and the Canadian Space Agency (CSA). Originally called the Next Generation Space Telescope (NGST), it was renamed in 2002 after NASA's second administrator, James E. Webb (1906-1992). Webb had headed NASA from the beginning of the Kennedy administration through the Johnson administration (1961-68), thus overseeing all the manned launches in the Mercury through Gemini programs, until just before the first manned Apollo flight. Current plans call for the telescope to be launched on an Ariane 5 rocket in June 2014, on a five-year mission (10 year goal). The JWST will reside in solar orbit near the Sun-Earth L2 point, which is on a line passing from the Sun to the Earth, but about 1.5 million km farther away from the Sun than is the Earth. This position, which moves around the Sun in exact orbital synchrony with the Earth, will allow JWST to shield itself from infrared from both Sun and Earth, by using a single radiation shield positioned between the telescope and the Sun-Earth direction. http://en.wikipedia.org/wiki/James_Webb_Space_Telescope .

Channels: Observational astronomy 

Added: 1797 days ago by Ordonomundi

Views: 743 | Comments: 0

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01:00
01:00
01:00

Hubble's Successor: The James Webb Space Telescope

In this fourth episode of the Science@ESA vodcast series Rebecca Barnes will identify some of the key discoveries achieved with the famous Hubble Space Telescope, look at the concept of redshift, and meet a new telescope that will be used to uncover the early Universe.

Channels: Observational astronomy 

Added: 2661 days ago by lonewolf

Views: 586 | Comments: 0

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10:27
10:27
10:27

Hubble Space Telescope - Chapter 1

Part 1 in a series of videos produced by the ESA for public distribution about the Hubble Space Telescope and much more. This video is Copyright Free material with some restrictions. Find out more at: http://www.spacetelescope.org

Channels: The Astronomers 

Added: 2735 days ago by deek

Views: 983 | Comments: 0

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08:34
08:34
08:34

Hubble Space Telescope - Chapter 3

Part 3 in a series of videos produced by the ESA for public distribution about the Hubble Space Telescope and much more. This video is Copyright Free material with some restrictions. Find out more at: http://www.spacetelescope.org Interested in scientific theory relating to the creation of our universe and beyond? Try some of these links: http://scienceline.org/2006/08/21/ask-snyder-bang/ http://www.space.com/scienceastronomy/white_hole_030917.html http://www.berkeley.edu/news/media/releases/2007/03/16_hawking_text.shtml Wrap some brain cells around that!

Channels: The Astronomers 

Added: 2735 days ago by deek

Views: 849 | Comments: 0

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07:57
07:57
07:57

Hubble Space Telescope - Chapter 5

Part 5 in a series of videos produced by the ESA for public distribution about the Hubble Space Telescope and much more. This video is Copyright Free material with some restrictions. Find out more at: http://www.spacetelescope.org

Channels: The Astronomers 

Added: 2735 days ago by deek

Views: 861 | Comments: 0

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05:03
05:03
05:03

Hubble Space Telescope - Chapter 2

Part 2 in a series of videos produced by the ESA for public distribution about the Hubble Space Telescope and much more. This video is Copyright Free material with some restrictions. Find out more at: http://www.spacetelescope.org

Channels: The Astronomers 

Added: 2735 days ago by deek

Views: 798 | Comments: 0

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09:50
09:50
09:50

Hubble Space Telescope - Chapter 6

Part 6 in a series of videos produced by the ESA for public distribution about the Hubble Space Telescope and much more. This video is Copyright Free material with some restrictions. Find out more at: http://www.spacetelescope.org

Channels: The Astronomers 

Added: 2735 days ago by deek

Views: 880 | Comments: 0

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