Nocturnal sun and light pollution

25 Jun 2017


      https://www.nytimes.com/2017/06/23/science/bright-nights-nocturnal-sun-zonal... https://www.nytimes.com/2017/06/23/science/bright-nights-nocturnal-sun-zonal-waves.html?hpw&rref=science&action=click&pgtype=Homepage&module=well-region®ion=bottom-well&WT.nav=bottom-well
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