[1970] Research telescope mirror shot w. handgun IAUC 2209: Report on 2.7-m reflector http://www.cbat.eps.harvard.edu/iauc/02200/02209.html#Item1 2.7-meters Telescope mirror shot 7 times (1970) https://news.ycombinator.com/item?id=41459161 Image: looking down the tube at the primary mirror. The dark circles in the lower right quadrant are bullet holes. An unhappy employee shot up the mirror in the 1970s. The holes reduce the telescope's light-gathering power by about 1%. Source: https://starhopper.org/wp-content/uploads/2020/11/mcdonald.png #astronomy #telescopes #physics
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