The atmospheric phenomenon, technically known as a circumhorizontal arc, only occurs at precise locations under specific conditions.
Researchers from the National Park Service, the University of California at Davis, and the U.S. Geological Survey were stunned when they witnessed rivers in Alaska turning orange. After studying ...
say that the waterways' rusty color likely comes from minerals uncovered by the thaw. Previously locked beneath Alaska's permafrost, these minerals are now exposed to water and oxygen, causing ...