Cool satellite view of dozens of oxbow lakes formed when a river changed course

When a river changes course on its flood plain, it can leave an entire bend of the river cut off from the new flow, forming an oxbow lake. Seen in bright blue in this shot of the Songhua River in northeast China, they are usually narrow crescents. Read the rest

Guy captures the moment a river cuts a new channel to the ocean

Wayne Easton braved the elements to capture an interesting natural phenomenon: the Mahlongwa River in KwaZulu-Natal, South Africa breaching its bank and cutting a channel to the Indian Ocean. Part two is below: Read the rest

Scientists finally discover why this river has such an unreal shade of blue

Rio Celeste is a gorgeous Costa Rican river with a length that's famous for its unusual turquoise waters. After decades of guessing, scientists finally determined the cause was aluminosilicate: Read the rest