How James Webb's Mirrors MUST Work

Launch Pad Astronomy
Launch Pad Astronomy
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Published 2022-01-19
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Getting JWST's complex optical system to work is critical. But is Webb really more powerful than Hubble? And why does Webb use hexagons? Why are there black borders around the mirrors? How do the mirrors survive the cold? And why are JWST's mirrors gold?

00:00 Webb's Optical System
03:30 Magellan TV
04:15 Webb vs. Hubble's Resolution
06:40 How Webb Avoids Stray Light
07:34 Golden Beryllium Mirrors
09:52 Why Hexagons?
10:40 How Webb Avoids Hubble's Mistake
11:47 Mirror Deployment, Alignment, and Phasing
14:32 Instrument Phasing and Calibration

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