Twenty thousand years ago, the land we live on now was under the leading edge of the last glacier of the last Ice Age. It takes effort today to imagine those hundreds of feet of ice over our heads, ...

Glacial cirques are distinctive amphitheatre‐shaped depressions formed by the persistent erosive action of mountain glaciers. These landforms typically exhibit steep, often overhanging headwalls, ...

Scientists have compiled an updated atlas of undersea landscapes carved by glaciers and icebergs. These formations, hidden in Earth's polar regions, were captured in 3D by acoustic methods like ...

Ocean scientists often say that humans know more about the surface of Mars than the seafloor of Earth. Under the icy water surrounding Earth's poles, there's a hidden world of dramatic landscapes — ...

Mars may be a freeze-dried planet now, but once, it was supposedly (almost) another Earth, with flowing water that froze into hulking mountains of ice. Because glaciers and ice sheets on Earth tend to ...