The Sky Today on Friday, June 20: The summer solstice and noctilucent clouds

The summer solstice occurs at 10:42 P.M. EDT, marking the official beginning of summer for those in the Northern Hemisphere. On this date, the Sun is located directly above the Tropic of Cancer at 23.5° north, taking its most northerly path through the sky. It is also the longest day of the year north ofContinue reading “The Sky Today on Friday, June 20: The summer solstice and noctilucent clouds”
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