Water

Experts have confirmed that the sword belonged to a Viking, dating it to between 850 and 975.

A 1,000-Year-Old Viking Sword Emerges From an English River

Discovered by a magnet fisher, the weapon dates to between 850 and 975, during the Vikings' violent conquest of Britain

P. karlraubenheimeri lived during the Miocene Epoch roughly 8.8 million years ago.

Fossil Hunter Discovers Gigantic Crab in New Zealand—a New, Extinct Species

The massive creature is 8.8 million years old, and its modern descendants in Australia can grow to be the weight of a human toddler

Wildlife officials released 830,000 fall-run Chinook salmon fry into Fall Creek. A large but unknown number of them died as they passed through a tunnel on the Klamath River.

Hundreds of Thousands of Salmon Die After Release in Northern California's Klamath River

The juvenile Chinook salmon likely died from pressure changes as they swam through an old tunnel in the Iron Gate Dam, slated to be removed this year as part of a massive demolition project

Boiling and filtering tap water, researchers suggest, could reduce concentrations of microplastics by more than 80 percent.

Boiling Tap Water Could Help Remove 80 Percent of Its Microplastics, Study Suggests

Minerals in some tap water can capture tiny plastic particles when the water is boiled, making them easier to filter away, according to a new study

Because the fish are translucent and they lack skulls, they're a favorite research subject of neuroscientists.

This Tiny Fish Can Make Sounds That Rival an Airplane or an Elephant—Now, Scientists Know How

Transparent and just half an inch long, male Danionella cerebrum can make noises of more than 140 decibels

Northern gannets plunge into the water to hunt in Shetland. This image won the British Waters Wide Angle category.

See 15 Otherworldly Images From the Underwater Photographer of the Year Awards

A hunting monkey, 'kissing' scorpionfish and playful dolphins feature in just a few of the 130 striking photographs distinguished with honors in the competition

Data from the retired Stratospheric Observatory for Infrared Astronomy (SOFIA), a joint venture between NASA and the German Space Agency, led scientists to their discovery.

Scientists Detect Water on the Surface of Asteroids for the First Time Ever

Using data from a retired NASA mission, researchers identified unique signs of water molecules on two space rocks, unlocking new insight into how water may have arrived on Earth

Saturn's moon Mimas has a giant impact crater, named Hershel, that stretches across a third of its surface and makes it resemble the "Death Star" from Star Wars.

An Icy Moon of Saturn May Be Hiding a Vast Ocean Under Its Crust, Surprising Astronomers

Researchers suggest a global ocean lies 15 miles beneath the surface of Saturn's "Death Star" moon, Mimas—a shocking discovery that could redefine what a habitable world looks like

A house in the Beverly Crest neighborhood of Los Angeles was pushed off its foundation by a mudslide on Monday morning. No one was in the house when the mudslide occurred. Recent storms caused at least 475 mudslides in the Los Angeles area.

California Hammered by Heavy Rains, Mudslides in Devastating Atmospheric River Storms

Some areas received as much as 13 to 15 inches of rain over a five-day period as storms felled trees, destroyed homes and killed nine people

The rows of shallow pits were carved into a rock ledge in what is now the Lewa Wildlife Conservancy in central Kenya.

These Pits Carved Into Rocks in Kenya Might Be Ancient Game Boards

An archaeologist thinks the small, carved holes were used by herders for games of mancala up to 5,000 years ago

The sword was found at the Włocławek port on the Vistula River.

This Medieval Sword Spent 1,000 Years at the Bottom of a Polish River

Construction crews stumbled upon the weapon while dredging the Vistula River in Włocławek

One possible explanation for the low-frequency noises? Mating black drum fish.

Mysterious Bass Sounds Irking Florida Residents Might Just Be Fish Mating Loudly

The Tampa community raised money to fund an investigation, and now, a local scientist will install underwater microphones to look for the source of the racket

A winding walkway from Mary Miss' Greenwood Pond: Double Site in 2014

Iowa Museum Plans to Tear Down Acclaimed Land Art Installation

Known as the country's first urban wetland project, "Greenwood Pond" has been declared "no longer salvageable" due to financial constraints and structural decay

An excavation of the dry Papowo Biskupie lakebed unearthed over 550 bronze artifacts.

Bodies and Treasure Found in Polish Lake Could Be Connected to Ancient Water Ritual

New research suggests the Chelmno group followed their water burials with mass deposits of bronze jewelry and artifacts

Returning Rapids Project investigator Chris Benson examines old photos of the Colorado River to see how it has changed over time.

Citizen Scientists Document a Recovering Colorado River

The Returning Rapids Project charts a resurgent waterway and its surrounding ecosystems

Bottom trawling is a polarizing fishing practice that involves dragging heavy nets and equipment across the seafloor.

Seabed Trawling May Be Spewing Huge Amounts of CO2 Into the Atmosphere

New research suggests the controversial fishing method is also contributing to increased ocean acidification, which can harm marine wildlife

This reconstruction shows the 4,000-year-old structure in its original form.

Archaeologists Discover 4,000-Year-Old Wall Built Around Oasis in Saudi Arabia

The nine-mile-long structure surrounding the Khaybar Oasis may have once protected against raiders

Researchers measure California snowpack levels at Phillips Station in the Sierra Nevada on January 2.

Climate Change Is Melting Snowpack, Pushing Some Regions Past a 'Snow-Loss Cliff'

Some of the Northern Hemisphere's most populous areas are at risk of warming past a critical threshold, after which snowpack melts rapidly with even small rises in temperature, study finds

Ocean drainage basins of the world

These Entrancing Maps Capture Where the World's Rivers Go

Cartographer Robert Szucs uses satellite data to make stunning art that shows which oceans waterways empty into

Left, Bartram’s illustration of Annona grandiflora, a member of the pawpaw family, which appeared in the naturalist’s 1791 Travels, right.

More Than 200 Years After He Toured Florida, America's First Great Environmentalist Is Inspiring Locals to Reconnect With Nature

A new generation is discovering the rambling Southern route of William Bartram and his legendary 1791 travelogue

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