A new geological study supports the theory that the Grand Canyon’s formation was driven by the overflow of an ancient lake fed by the proto-Colorado River about 6.6 million years ago. Researchers ...

The northeastern rim region of Hellas impact basin, located in the southern hemisphere of Mars, contained numerous ephemeral lakes throughout Mars’s history, a new study reveals. A new paper published ...

A new study suggests a proto–Colorado River filled a large basin before spilling westward to set the Grand Canyon’s modern ...

The vast swamps and peatlands of the tropics play an important role in the global carbon cycle and consequently in the global climate. The Amazon basin, the Congo basin, and the tropical wetlands of ...