Safety Sunglasses Required
![Telescope technician wearing safety sunglasses](https://public.nrao.edu/wp-content/uploads/2017/01/GBTmirrorglasses_large.jpg)
Imagine spending all day working on a 2.3 acre surface of super-reflective metal. Adjusting the panels on the Green Bank Telescope (GBT) requires such blindingly bright conditions, and sunglasses are part of the safety gear for all technicians. You can see a technician adjusting a panel in the reflection in the sunglasses.
Credit: NRAO/AUI/NSF
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