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The Webb telescope uses 132 small actuation motors to position and adjust the optics. [39] The actuators can position the mirror with 10 nanometer accuracy. [40] Webb's optical design is a three-mirror anastigmat, [41] which makes use of curved secondary and tertiary mirrors to deliver images that are free from optical aberrations over a wide ...
The most powerful telescope to go into space was successfully launched on Christmas Day. The James Webb Space Telescope (JWST) was on an Ariane 5 rocket when it left the Kourou spaceport in French ...
The astrophysicist unpacks how the telescope gives us an unprecedented view of the universe, billions of years ago. Neil deGrasse Tyson: How the Webb Telescope Lets Us See ‘Ghosts’ of the Past ...
Unknown: Cosmic Time Machine is an episode of the four-episode 2023 Netflix documentary series Unknown, about NASA's development and launch of the James Webb Space Telescope. [1] The episode follows the development of the telescope from the 1990s through its 2021 launch and 2022 deployment, and the unveiling of some of the first images from the ...
The James Webb Space Telescope's cryocooler is based originally on the TRW ACTDP cryocooler. [12] However, the JWST has had to develop a version to handle higher thermal loads. [13] It has a multi-stage pulse tube refrigerator that chills an even more powerful cooler. [12] That is a linear-motion Oxford-style compressor that powers a J-T loop. [13]
Two years of data from NASA's James Webb Space Telescope have now validated the Hubble Space Telescope's earlier finding that the rate of the universe's expansion is faster - by about 8% - than ...
NASA announced in 2002 that it would name its Next Generation Space Telescope, the successor to the Hubble Space Telescope, the James Webb Space Telescope. More information about James Webb. More ...
It was the target of the first full-color image to be unveiled by the James Webb Space Telescope (JWST), imaged using NIRCam, with spectra included, showing objects lensed by the cluster with redshifts implying they are 13.1 billion years old. [10]