"Fallstreak holes," also known as "hole punch clouds," which were seen Jan. 7 in satellite images from Indiantown through Miami, can punch clear through to show blue sky, or be more opaque ...

The fleeting glow of noctilucent clouds is once again making its appearance in Earth’s upper atmosphere, signaling the start ...

Last week, I wrote a post about cloud watching and invited readers to send photos. To everybody who ... When you see a cloud hanging in a clear blue sky, it looks like the cloud is wet, while ...

Aside from New England and parts of the Midwest, patches of completely clear skies will be few and ... A broken sky has thin strips of clear blue peeking through abundant clouds.

Every day, members of the Cloud Appreciation Society post photos of the sky from around ... The group’s mission is to “fight ‘blue-sky thinking’ wherever we find it.” ...

Bright blue-white noctilucent clouds danced over the town of Nykøbing Mors in Denmark just before dawn, just when this spectacular photo was taken. Night sky photographer Ruslan Merzlyakov ...

THE blue color of the sky on a clear day is familiar ... confined to the layers within a few miles of the sea level, is to notice the shadows cast by heavy clouds on mountains at the setting ...