2021, May 21: Twilight Lengthens

May 21, 2021:  At the weather warms, daylight and twilight lengthen to diminish nighttime hours.  As the summer solstice approaches far northern latitudes do not have periods of darkness.  From the most northern latitudes, the sun does not set – the Land of the Midnight Sun.

This episode is also available as a blog post: https://whenthecurveslineup.com/2021/05/14/2021-may-21-twilight-lengthens/