How WEBB works
Nov 25, 2021
2 minutes
xternally, Webb looks very different from Hubble. The latter, just like a traditional telescope, is enclosed in a cylindrical tube that shields the optics from stray light. Depending on its position in its orbit, Hubble can be exposed to a lot of this – blazing sunshine from one direction, reflections from Earth’s surface in another and maybe even the Moon.
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