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Not so long ago our uni decided to build a football stadium right next to the observatory (insane, I know!)... but it turns out the light pollution is only one of the many dangers. A few nights ago with no warning they set off a *huge* smoke bomb. We were observing with both telescopes at the time.

If you didn't just gasp in horror, let me tell you about smoke and optical surfaces, it's bad #Astrodon #Astronomy #optics #telescopes #observatory #yorkuniversity #smoke #observer #science
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