it may reflect the color of the sky and appear bluish. Some of the most picturesque clouds occur close to sunrise and sunset when they can appear in brilliant yellows, oranges and reds.

The best time to view iridescent clouds is when the sun is low on the horizon, typically within two hours of sunrise or ...

Readers’ photos celebrate sunrises and sunsets, when the light is the most pleasing. Fifty-one photos were sent in; here are ...

Cloud Composition Clouds are a fascinating part of our sky, made up of countless tiny water droplets or ice crystals. When ...

Astronomers explain the science behind March’s Blood Worm Moon, a total lunar eclipse turning the moon red overnight.

“Every sunset is an opportunity to reset ... to turn to its golden color and with it a portion of the dramatic clouds the sky. The children are silhouette against the sunshine glinting off ...