An astronaut on the ISS photographed a "lunar halo" over the Indian Ocean, revealing ice and rare optical phenomena from ...

Depending on its position, the Sun passes its light through combinations of these materials to cast glowing patterns of ...

An ISS astronaut captured a rare lunar halo above the Indian Ocean, showing a thin glowing arc above Earth's blue edge.

SEATTLE -- It was a sun halo party over Seattle Wednesday morning and every kind of atmospheric event was invited. Dr. Angela Rowe with the University of Washington Atmospheric Sciences Department ...

Sunday evening ended with a visual treat in the sky, and Monday morning continued the atmospheric spectacle! Cirrostratus clouds drifting over Metro Atlanta produced my favorite atmospheric optical ...

On Reddit, users located as far as the U.K. also reported seeing the ghostly phenomenon. A moon halo is actually an atmospheric optical illusion that causes a large, bright ring to surround our ...

An astronaut aboard theInternational Space Station (ISS) recently snapped a breathtaking photo of a lunar halo, a rare ...

SEATTLE -- If you were up early Wednesday morning, you might have been treated to a rather brilliant show in the skies near the sun. Photos from around the region showed a rather bright halo around ...

Bright patches of light, known as sun dogs, appear when sunlight bends through hexagonal ice crystals in high-altitude clouds. These dazzling displays ...

Whether they’re idyllic floating cotton balls on an otherwise blue sky or ominous grey swirls that block the sun, clouds all begin as an invisible dot of water vapor. This elusive gas has been tricky ...