Sacramento is one of California’s most light polluted cities. The Bortle scale is a nine-level numeric scale measuring the night sky's brightness of specific locations with one being perfect ...
Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. In 1999, Daniel Myrick and Eduardo Sánchez shot one of the ...
When I was a teenager, I was—shockingly, I know—deeply nerdy. At a science-fiction convention, I bought a button that read, “186,282 miles/second: Not just a good idea, it’s the law.” It was poking ...
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