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NASAWebbTelescope uploaded a new video
(3 months ago)
The clean room at NASA's Goddard Space Flight Center in Greenbelt, Md., ...
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The clean room at NASA's Goddard Space Flight Center in Greenbelt, Md., has received a giant structural steel frame (called the Ambient Optical Assembly Stand or AOAS) that will be used to assemble the mirrors and instruments of the James Webb Space Telescope.
"This milestone is important as it marks the transition to the integration and testing phase for the Webb telescope's optical telescope element," said Lee Feinberg, Optical Telescope Element Manager for the Webb telescope at Goddard.
This timelapse video shows part of the AOAS construction process. (No audio.)
Read more: http://www.nasa.g...
Credit: NASA Goddard
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NASAWebbTelescope uploaded a new video
(8 months ago)
Completion of Webb Telescope mirror polishing represents a major mission...
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Completion of Webb Telescope mirror polishing represents a major mission milestone. All of the mirrors that will fly aboard NASA's James Webb Space Telescope have been polished so the observatory can see objects as far away as the first galaxies in the universe. The mirrors were polished at Tinsley Laboratories Inc. in Richmond, Calif. to accuracies of less than one millionth of an inch. This accuracy is important for forming the sharpest images when the mirrors cool to -400 degrees farenheit (-240 degrees celsius) in the cold of space.
This video shows B-roll of mirror polishing at the L3 Integrated Optical Systems - Tinsley facility located in Richmond, California.
Credit: NASA/Northrop Grumman/Ball/L3
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NASAWebbTelescope uploaded a new video
(9 months ago)
A quick look at testing of the Webb one-sixth scale test bed telescope, ...
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A quick look at testing of the Webb one-sixth scale test bed telescope, and integration and test of primary mirror segments and the secondary mirror from 2006 to March 2011.
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NASAWebbTelescope uploaded a new video
(9 months ago)
Actor Seth Green, and some actor/writer/producer friends, visited NASA G...
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Actor Seth Green, and some actor/writer/producer friends, visited NASA Goddard. They got to see our giant centrifuge as they were preparing for a low-speed balance test of the James Webb Space Telescope's ISIM structure. Here is some footage of their visit and of the centrifuge in motion.
NASA's High Capacity Centrifuge (HCC) top speed: 33 1/3 rpm (just like the record speed); it generates 30 G's at that speed.
ISIM test top speed: about 11 rpm for about 10 Gs (same as it will experience on the Ariane 5 rocket during launch)
The ISIM test shown here was a much slower spin that was done to test the balance of the centrifuge.
This was shot in 30 frames per second, but it converted to 60fps when it was processed, so that's why it looks faster than it was in real life.
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NASAWebbTelescope uploaded a new video
(9 months ago)
Please note, this is a camera phone video - we'll have a high def one co...
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Please note, this is a camera phone video - we'll have a high def one coming out soon.
This video shows the NASA Goddard High Capacity Centrifuge (HCC). It is doing a test spin with the James Webb Space Telescope's flight ISIM structure aboard. The ISIM structure will hold all the science instruments.
The HCC's top speed: 33 1/3 rpm (just like the record speed if anyone remembers that); it generates 30 G's at that speed.
ISIM test top speed: about 11 rpm for about 10 Gs (same as it will experience on the Ariane 5 rocket during launch)
The ISIM test in this video wasn't even 1 G. It was about 1/3 rpm. It was done to test the balance of the centrifuge.
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The ultimate $10,000 hammer, and contractors are having a field day at our expense.