NASA just released a short video on the James Webb Telescope, this focusing on the stress tests for the mirrors on the satellite.
Video Credit: NASA/Hubble/Space Telescope Science Institute
The scientist and interviewer are inside a "clean tent," and the mirror itself is behind a clear plastic casing. Immediately it rings of toxicity. I assumed the precautions were a necessity for a pristine condition for testing; but no, toxicity is actually a factor here. The beryllium mirror, if fractured during testing, could spray dust deadly to the scientists.
Rarely is the image of these workers are seen as "badass." Pretty cool.
My only complaints: The volume is a little low, and bear through the layman explanation of "G".
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