Latest Optical telescope Stories

NASA Receives First Two Webb Mirrors
2012-09-25 20:36:48

Lee Rannals for redOrbit.com — Your Universe Online NASA said on Monday that the first two of 18 primary mirrors for its James Webb Space Telescope have arrived at Goddard Space Flight Center in Greenbelt, Maryland. The mirrors are going through receiving and inspection, and will be stored in the Goddard cleanroom until engineers are ready to install them onto the telescope's backplane structure, according to the space agency. Ball Aerospace in Boulder, Colorado is building...

What Is The 'Golden Spider'
2012-08-24 09:47:51

What looks like a giant golden spider weaving a web of cables and cords, is actually ground support equipment, including the Optical Telescope Simulator (OSIM), for the James Webb Space Telescope. OSIM's job is to generate a beam of light just like the one that the real telescope optics will feed into the actual flight instruments. Because the real flight instruments will be used to test the real flight telescope, their alignment and performance first have to be verified by using the OSIM....

2012-06-12 14:00:40

Lee Rannals for redOrbit.com [ Watch the video ] The European Extremely Large Telescope (ELT) has been given the go-ahead by the organization overseeing the project to move on with it. The $1.3 billion telescope will look for planets outside the solar system and those orbiting other stars in "habitable zones." The telescope will use a 127-feet mirror, helping it gather more than 12 times the light that the largest optical telescopes being used today gather. "Its unique...

Image 1 - Webb Telescope Flight Backplane Section Completed
2012-04-25 01:00:06

The center section of the backplane structure that will fly on NASA's James Webb Space Telescope has been completed, marking an important milestone in the telescope's hardware development. The backplane will support the telescope's beryllium mirrors, instruments, thermal control systems and other hardware throughout its mission. "Completing the center section of the backplane is an important step in completing the sophisticated telescope structure," said Lee Feinberg, optical telescope...

Webb Telescope Spinoff Technologies Already Seen In Some Industries
2012-04-20 03:38:40

[ Watch the Video ] A critical component of the James Webb Space Telescope is its new technology. Much of the technology for the Webb had to be conceived, designed and built specifically to enable it to see farther back in time. As with many NASA technological advances, some of the innovations are being used to benefit humankind in many other industries. The Webb telescope is the world's next-generation space observatory and successor to the Hubble Space Telescope. The most powerful...

Image 1 - NASA Goddard Engineers Testing Webb Telescope's OSIM and BIA Instruments
2012-04-13 03:37:40

Several critical items related to NASA's next-generation James Webb Space Telescope are being tested in the giant thermal vacuum test chamber at NASA's Goddard Space Flight Center, Greenbelt, Md. These photos show the OTE (Optical Telescope Element) Simulator or OSIM wrapped in a silver blanket on a platform, being lowered down into a vacuum chamber (called the Space Environment Simulator, or SES) by a crane to be tested to withstand the cold temperatures of space. The OSIM simulates...

ESO Celebrates 50 Years Of Reaching New Heights In Astronomy
2012-01-06 07:09:27

The year 2012 marks the 50th anniversary of the European Southern Observatory (ESO), the foremost intergovernmental astronomy organization in the world. The anniversary year is an opportunity to look back at ESO´s history, celebrate its scientific and technological achievements and look forward to its next ambitious programs. ESO is planning several exciting activities during the year. On 5 October 1962, representatives from five European countries – Belgium, France, Germany,...

Cryogenic Testing Completed For Webb Telescope Mirrors
2011-12-22 04:39:44

Cryogenic testing is complete for the final six primary mirror segments and a secondary mirror that will fly on NASA's James Webb Space Telescope. The milestone represents the successful culmination of a process that took years and broke new ground in manufacturing and testing large mirrors. "The mirror completion means we can build a large, deployable telescope for space," said Scott Willoughby, vice president and Webb program manager at Northrop Grumman Aerospace Systems. "We have proven...

Latest Optical telescope Reference Libraries

2010-09-24 17:50:57

A telescope, designed to aid the observation of remote objects, collects some form of electromagnetic radiation (such as visible light). The Netherlands developed the first known practical telescope in the 17th century. The term "telescope" was termed in order to describe Galileo's instruments in 1611. However, Galileo was not the inventor of the telescope. It was Hans Lippershey, Zacharias Janssen, and Jacob Metius who are credited with the creation of the telescope. In 1668, Isaac Newton...

2004-10-19 04:45:43

Very Large Telescope -- The Very Large Telescope (VLT) consist of four optical telescopes that have 8.4 meter aperture. The VLT is a project of the European Southern Observatory organization. It is located at the Paranal Observatory on Cerro Paranal, a 2,635-m high mountain in the Atacama desert in northern Chile. The VLT consists of a cluster four of large telescopes, and an interferometer (VLTI) which will be used to resolve fine features. The telescopes have been named after the...

2004-10-19 04:45:43

Telescope -- A telescope is an instrument composed of one or more lenses or mirrors to gather and focus electromagnetic radiation. Telescopes increase the observed angular size of objects, as well as their apparent brightness. The largest telescopes are used in astronomy. A telescope was first turned on the sky by Galileo Galilei, the Italian scientist. (Telescopes used for non-astronomical purposes may be called "transits," "monoculars," "binoculars," "camera lenses," or "spyglasses".)...

2004-10-19 04:45:43

Adaptive Optics -- Adaptive optics is a technology to improve the performance of Earth-based telescopes, reversing the effect of atmospheric distortions. When light from a star or another astronomical object enters the Earth's atmosphere, the different temperature layers and different wind speeds distort and move the image in various ways (see seeing for a proper discussion). The net result is that an 8 meters or 10 meters telescope (like the VLT or Keck), while theoretically capable...

2004-10-19 04:45:43

Active Optics -- Active optics is a relatively new technology for astronomic telescopes. Most modern telescopes are reflectors, with the primary element being a very large mirror. Historically, a fixed weight-to-diameter relation was used to build these mirrors, limiting their maximum diameter to 5 or 6 meters (200 or 230 inches), like in the Palomar Observatory. A new generation of telescopes uses instead very thin mirrors, uncapable of sustaining themselves. Instead, an array of...

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