
Snow-capped mountains carved by deep river valleys preside over northwestern Washington state.

Sediment eroded from ice-capped mountains splays out across a broad river valley on Russia’s Severny Island.

Orange streams are now being spotted in hundreds of watersheds in permafrost areas throughout Alaska’s Brooks Range.

Using satellite data, researchers connected harmful algal blooms with warm water and low water levels at one of Colorado’s largest reservoirs.

Drifting sea ice fragments near Alaska’s Saint Lawrence and Nunivak islands and colorful water around the Yukon Delta heralded the approach of the summer solstice.

Drought and water releases drained the Arizona reservoir to levels that have led to widespread fish deaths.

Explore how rivers move, change, and sustain life across the planet with SWOT data.

Lake Unter-See in Antarctica, sealed beneath thick ice, contains unusually high levels of dissolved oxygen and cone-shaped microbial reefs resembling some of Earth’s oldest fossils.

A NASA luminary from the Apollo era grew up in Wales near Llanfairpwllgwyngyllgogerychwyrndrobwllllantysiliogogogoch.