RT @earthskyscience: Shadow ray, from Eliot Herman’s very cool page of “atmospheric optics” photos. Gorgeous!
bit.ly/1T6EX9g https://t.co/CqARPesjgN
RT @earthskyscience: Shadow ray, from Eliot Herman’s very cool page of “atmospheric optics” photos. Gorgeous!
bit.ly/1T6EX9g https://t.co/CqARPesjgN