The Earth's natural source of light is the sun ... there is no direct sunlight striking the cloud, it may reflect the color of the sky and appear bluish. Some of the most picturesque clouds ...

As Thursday ends and Friday begins, a full moon total lunar eclipse blood moon will illuminate the sky. And, as long as no clouds drift in to obscure the moon, ...

These noctilucent clouds, reflecting light from the sun after ... at Earth's sky and wondered about this kind of cloud, the highest in the atmosphere. Rain clouds tend to form no more than 10 ...