Science
James Webb Space Telescope: How does it work and what will it see? – BBC Focus Magazine
The tech behind the £7.2bn successor to Hubble, and what it will be used for.
The James Webb Space telescope will image the little-known places in the Milky Way and beyond. Here are just a few of the things it hopes to see and the tech it will use to see them.
JWST: The facts
Full name: James Webb Space Telescope
Size: 21 x 14m (sunshield)
Launch mass: 6,200kg
Cost to build: $10bn
Launch date: 31 October 2021
Expected first images: 2-3 months after launch
Collaborators: NASA, ESA and Canadian Space Agency
Mission duration: 5-10 years
Orbit: 1.5 million km from Earth
The James…
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