Waterfalls close waterfallA vertical cliff of water where the water flows over a layer of hard rock on top of a layer of softer rock. The softer rock is eroded away causing the cliff edge to gradually ...

Rivers are Earth’s arteries. Water, sediment and nutrients self-organize into diverse, dynamic channels as they journey from the mountains to the sea. Some rivers carve out a single pathway, while ...

At 4,130 miles (6,650 km) long, the Nile in Africa is the longest river in the world. Some people consider the Amazon in South America to be longer. This is because the many hundreds of channels that ...

Geology professor and MacArthur “genius” Taylor Perron explores our world and others to understand how landscapes evolve and what they can tell us about the future of our planet. Dense, lush ...

Flowing water shapes most of Earth's canyons, obscuring the contributions of other erosional mechanisms. A comparison of adjacent canyons with and without wind shielding shows that wind can amplify ...

Logging activity a century ago on a Washington river caused the bedrock to erode, creating a new terrace. The authors believe such large-scale, human-caused erosion may be widespread. Geologic time is ...

It’s mid-morning at an oxbow on the Mendenhall River, and signs of change are all around. A handful of spruce trees, felled by river erosion, sit awash in the gray-green rush. Silty ledges, ...

UNIVERSITY PARK, Pa. — New analysis of data from the Curiosity rover reveals that much of the craters on Mars today could have once been habitable rivers. “We’re finding evidence that Mars was likely ...

It's anyone's guess as to when the Minnesota River will stop growing. Stretches of its eastern bend, not far from Mankato, have more than doubled in size since the 1940s. Several homes that were built ...

New analysis of data from the Curiosity rover reveals that much of the craters on Mars today could have once been habitable rivers. New analysis of data from the Curiosity rover reveals that much of ...