Latest Primary mirror Stories

NASA's James Webb Space Telescope Backplane Testing Complete
2014-07-09 03:55:45

NASA NASA's James Webb Space Telescope has reached another development milestone with the completion of static load testing of its primary mirror backplane support structure (PMBSS) moving the telescope one step closer to its 2018 launch. The PMBSS is the stable platform that holds the telescope's science instruments and the 18 beryllium mirror-segments that form the 21-foot-diameter primary mirror nearly motionless while the telescope peers into deep space. The primary mirror is the...

James Webb Space Telescope Mirror's Amazing Anatomy
2014-03-20 15:02:51

Rob Gutro, NASA When you think of a mirror, there really isn't that much needed to describe it, but when you look at a mirror that will fly aboard NASA's next-generation James Webb Space Telescope, there's a lot to the anatomy of a mirror. NASA's Webb telescope includes a primary, secondary and tertiary mirror. Although the relatively small secondary and tertiary mirrors are unique, it's the expansive primary mirror that has the most complicated anatomy with a number of components...

Final Three Mirrors For James Webb Space Telescope Arrive At NASA
2013-12-18 11:06:44

NASA The final three of 18 primary mirrors for NASA's James Webb Space Telescope arrived at NASA’s Goddard Space Flight Center in Greenbelt, Md., for integration prior to a scheduled launch in 2018. Once on orbit, the 18 hexagonal mirror segments will work together as one 21.3-foot (6.5-meter) primary mirror, the largest mirror ever flown in space and the first to deploy in space. "Having the final mirror segments at Goddard is an exciting program milestone. It's the culmination of...

James Webb Space Telescope Backbone Completed
2013-06-15 06:01:35

April Flowers for redOrbit.com - Your Universe Online Assembly of the primary mirror backplane support structure for NASA´s James Webb Space Telescope, the backbone of the telescope, is a step closer to completion with the recent addition of the backplane support frame. The fixture will be used to connect all the pieces of the telescope together. The Webb´s center section and wings, secondary mirror support structure, aft optics system and integrated science instrument module...

2013-06-04 12:38:48

In an important milestone for the Thirty Meter Telescope (TMT) project, Japan, one of the project's five international partners, has indicated its strong national backing for the next-generation astronomical observatory. On Wednesday, May 15, the Japanese parliament, known as the Diet, passed a fiscal year 2013 budget that includes key funding provisions 1244 million yen (approximately $12.2 million U.S.) for TMT, which contains TMT preparatory budget and a portion of Japan's TMT...

James Webb Telescope Support Structure Wing Completed
2013-03-16 10:26:19

redOrbit Staff & Wire Reports — Your Universe Online The massive backplane that will help hold the James Webb Space Telescope´s primary mirror in place as it scans the night sky is now one step closer to completion, NASA officials announced on Friday. The recent assembly of the primary mirror backplane support structure wing “is another milestone that helps move Webb closer to its launch date in 2018," said Geoff Yoder, the telescope program´s director at the...

Latest Primary mirror Reference Libraries

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...

Subaru Telescope
2004-10-19 04:45:40

Image Caption: The Subaru Telescope at the Mauna Kea Observatory on Hawaii. Credit: Denys/Wikipedia (CC BY-SA 3.0) The Subaru Telescope is a 26.9-foot (8.2m) telescope located at the Mauna Kea Observatory on the Big Island of Hawaii and operated by the National Astronomical Observatory of Japan (NAOJ). It had the largest primary mirror in the world until 2005. This is a reflecting telescope with a large field of view--called a Ritchey-Chretien--which has a primary mirror and a secondary...

2004-10-19 04:45:40

Keck Observatory -- From a remote outpost on the summit of Hawaii's dormant Mauna Kea volcano, astronomers at the W.M. Keck Observatory probe the deepest regions of the Universe with unprecedented power and precision. Their instruments are the twin Keck Telescopes, the world's largest optical and and infrared telescopes. Each stands eight stories tall and weighs 300 tons, yet operates with nanometer precision. At the heart of each Keck Telescope is a revolutionary primary mirror. Ten...

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