The mirror actuators on the James Webb Space Telescope are a perfect example of this extreme engineering, and to understand how they work a little better, [Zachary Tong] built a working model of ...

Telescope mirrors require some kind of metal coating to reflect as much light as possible. JWST uses gold mirrors to catch UV and visible light emitted by early luminous objects. Secondly ...

Related: Can the James Webb Space Telescope really see the past? Set to launch no earlier than 2026, the telescope will feature a primary mirror with ... This arrangement makes it a snap for ...