The James Webb Space Telescope is a space telescope designed primarily to conduct infrared astronomy. As the largest optical telescope in space, its greatly improved infrared resolution and sensitivity allow it to view objects too early, distant, or faint for the Hubble Space Telescope.
James Webb Space Telescope is the most advanced space telescope in the history of this world. The official name of James Web Space Telescope is the Next Generation Space Telescope. This space telescope was named by NASA American Space Agency as James Webb Space Telescope to honor the James William a former Director of NASA who was leading space mission in 1960.
The James Webb Space Telescope is the joint venture of America, Canada and Europe.
Inside James Webb Space Telescope (JWST)
James Webb Space Telescope consists of 18 mirrors for which Beryllium is used as primary material. These 18 mirrors are combined called as primary mirrors of the James Webb Telescrope. Additionally there is a microscopic gold layer on these mirrors in order to achieve maximum infrared reflection. The primary mirror of JWST is 21 feet 4 inch.
These mirror are design to work at extreme low temperature of -223 degree. in order to maintain temperature around mirror specific sun shield is used. This sun shield is designed specifically and consist of 5 microscopic layers as thin as thin but very strong material. There is a gape between these layers to absorb maximum heat. Material used to make sun shield is called Kapton which is Carbon Nitrogen Hydrogen and oxygen and major part of this materials is carbon
The Lens of James Webb Space Telescope is made of Lithium Fluoride to reflect the infrared light because the ordinary mirror is unable to reflect infrared light. The lens assembly is made by American company Lockheed Martin.
This space telescope is an infrared telescope having near infrared camera and medium infrared camera. Webb is currently at its observing spot, Lagrange point 2 (L2), nearly 1 million miles (1.6 million km). JWST using hydrazine as fuel. The James Web Space Telescope has enough fuel for 20 years.