Latest Primary mirror Stories
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.
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.
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.
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.
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.
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.
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...
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...
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...