However, the colors people most associate with the sky are the bright blue of a clear day and the gray of the clouds. That's ...

Observers spotted UFO look-alike clouds in Hawaiian skies above the Mauna Kea and Mauna Loa volcanoes. The photos were taken on March 8 from the vantage point of the W. M. Keck Observatory, which ...

Stargazing The brightest star in the night sky shows off this spring: ... Look Up! Mysterious Night-Shining Clouds Are Back. ... the clouds were confined to latitudes above 50-degrees north.

They take shape really high in the sky, higher than any other clouds, in an area near space called the mesophere. It's about 50 miles (80km) above the Earth's surface and here, the Earth's ...