"Understanding Telescope Design"
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Space TelescopeWindows
•Science
Science
How the Hubble Space Telescope launched into space. Here's how it all went down
63% Informative
NASA 's James Webb Space Telescope took 25 years and $10 billion to create and launched into deep space.
The James Webb telescope is a relatively simple device that uses two mirrors to gather and focus light.
The same principles apply whether you're doing backyard astronomy or exploring the deep universe from outer space.
Large Infrared Space Telescope will be launched in December 2021 .
The James Webb Telescope is the largest telescope in the history of the universe.
Its primary mirror is made of hexagon tiles made from beryllium, which is not a reflective metal.
The diameter of previous space telescopes like Hubble were limited by the width of the rockets they were launched on.
We need as much light as we can get to imaging the deep universe.
The primary defense on its back, the Sun Shield, is a transparent film that's typically used to make flexible circuit boards.
The outer 2 layers of the Sun Shield are the thickest at 0.05mm , while the thin layers are just 0.025mm .
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