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Second Flight Instrument Delivered for James Webb Space Telescope

The second of four main instruments to fly aboard NASA's James Webb Space Telescope (Webb) has been delivered to NASA. The Fine Guidance Sensor (FGS) will enable the telescope to accurately and precisely point at the correct, intended objects for it to observe. The FGS is packaged together as a single unit with the Near-Infrared Imager and Slitless Spectrograph (NIRISS) science instrument.
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New Video Brings a 'Golden Touch' Behind the Webb



NASA technology does some amazing things. Imagine taking one-tenth of an ounce of gold and spreading it so thin that it completely coats something over four feet in diameter. That's what scientists and engineers did for the primary mirror segments that will fly on NASA's James Webb Space Telescope.
The Webb telescope has 18 hexagonal-shaped mirror segments that make up its primary mirror. Each of the segments is 1.32 metres in diameter, flat to flat. Webb Telescope's scientists and engineers determined that a primary mirror 6.5 metres across is what was needed to measure the light from faint astronomical sources.

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NASA's 'Webb-Cam' Has Double Vision for MIRI's Arrival

NASA's special "Webb-cam," the camera in a giant clean room at NASA Goddard, now has "double vision," because there are two video cameras now focusing on what's happening with the very first completed instrument that will fly onboard the James Webb Space Telescope. Recently, there's been a lot to look at because the MIRI instrument arrived at Goddard from the United Kingdom.
These aren't just typical webcams, they're "Webb-cams" because they're focused on the progress of work being done on components of the upcoming James Webb Space Telescope in the largest clean room at NASA's Goddard Space Flight Centre, Greenbelt, Md.

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CLNRMR.jpg

(Right side)

 CLNRM.jpg

(Left side of the cleanroom)



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Mid-Infrared Instrument
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First Flight Instrument Delivered For James Webb Space Telescope

The first of four instruments to fly aboard NASA's James Webb Space Telescope (Webb) has been delivered to NASA. The Mid-Infrared Instrument (MIRI) will allow scientists to study cold and distant objects in greater detail than ever before.
MIRI arrived at NASA's Goddard Space Flight Centre in Greenbelt, Md., May 29. It has been undergoing inspection before being integrated into Webbs science instrument payload known as the Integrated Science Instrument Module (ISIM).

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James Webb Space Telescope's Mirrors Get 'Shrouded'

Earlier this year, NASA completed deep-freeze tests on the James Webb Space Telescope mirrors in a "shroud" at the X-ray & Cryogenic Facility (XRCF) at Marshall Space Flight Centre in Huntsville, Ala.
All of the Webb's 18 main mirror segments were tested under conditions that they will experience when operating in space to verify they will work as expected. Tested in batches of six, the mirrors were transferred to the cryogenic testing chamber where they were plunged to a chilly -414 degrees Fahrenheit (-248 C).

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Miri
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 James Webb telescope's Miri instrument flies out to US

Europe shipped one of its big contributions to the James Webb Space Telescope (JWST) on Tuesday.
The Mid Infra-Red Instrument (Miri) was flown out of London Heathrow on a British Airways jet, bound for Nasa's Goddard Space Flight Centre.
JWST will be the successor to Hubble, and aims to track down the very first stars to shine in the Universe.

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Cryogenic Testing Completed For NASA's Webb Telescope Mirrors
 
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.
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Assembly Stand Completed for NASA's Webb Telescope Flight Optics
 
The clean room at NASA's Goddard Space Flight Centre in Greenbelt, Md., has received a giant structural steel frame that will be used to assemble the mirrors and instruments of the James Webb Space Telescope.
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Tests Under way on the Sunshield for NASA's Webb Telescope

NASA is testing an element of the sunshield that will protect the James Webb Space Telescope's mirrors and instruments during its mission to observe the most distant objects in the universe.
The sunshield will consist of five tennis court-sized layers to allow the Webb telescope to cool to its cryogenic operating temperature of minus 387.7 degrees Fahrenheit (40 Kelvin).

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NASA'S Webb Telescope Completes Mirror Coating Milestone
 
NASA's James Webb Space Telescope has reached a major milestone in its development. The mirrors that will fly aboard the telescope have completed the coating process at Quantum Coating Inc. in Moorestown, N.J.
The telescope's mirrors have been coated with a microscopically thin layer of gold, selected for its ability to properly reflect infrared light from the mirrors into the observatory's science instruments. The coating allows the Webb telescope's "infrared eyes" to observe extremely faint objects in infrared light. Webb's mission is to observe the most distant objects in the universe.

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