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Circumzenithial arc and sun dogs

Sun Halo - Moilanen arc - Oslo, Norway


Heavenly halo lights up the Arctic

Heavenly halo lights up the Arctic - Atmospheric optics turn sunlight into a celestial display as seen from Summit Station in Greenland on Oct. 14. Ed Stockard, one of the workers at the federally funded research station, says the display includes a halo, sun dogs, an upper tangent arc & more.

"Fire Rainbows" are the rarest of all naturally occurring atmospheric phenomena. For a fire rainbow to occur, cirrus clouds must be 20,000 feet in the air with the precise amount of ice crystals, and the sun must hit the clouds at 58 degrees

The moment before the sun disappears

This very cool shot was captured in Southern California, not far from Vandenburg Air Force Base. A Minotaur rocket had launched just about an hour before the photo was taken, leaving behind a very photogenic plume of smoke. The contrail shows amazing rainbow-colored flashes picked up from the setting sun, even though it was captured at night. This usually happens when clouds are high in the upper atmosphere; they reflect sunlight while the lower clouds appear dark, resulting in a lustrous…