This usually involves making temperatures that are typical of the earth's surface almost black ... the tops of thick clouds almost white. In this case, the medium or dark gray clouds are usually ...

Kenn from Mount Gilead wrote in to ask, “I’ve always wondered, why are some clouds white, some gray, and others dark gray to even black? What causes the different colors of the clouds?” ...

near-perfect cloud ring appears in the middle of the Pacific Ocean These clouds tend to be gray, brown or black because of the smoke in the air, and can tower up to 5 miles (8 kilometers ...