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James Webb Space Telescope: How does it work and what will it see?
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Launch mass: 6,200kg
Expected first images: 2-3 months after launch
Collaborators: NASA, ESA and Canadian Space Agency
Mission duration: 5-10 years
The James Webb Space Telescope’s tech
1: Secondary mirror
2: Primary mirror
3: Sunshield
The size of a tennis court, it protects the telescope from light sources, such as the Sun.
1: ISIM
2: Spacecraft bus
3: Star trackers
4: High gain antenna
What will the JWST see?
The early Universe
The JWST will be able to look back to around 200 million years after the Big Bang, when the first stars in the Universe formed.