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Arctic Ocean

The Bering Strait is a narrow waterway between Russia and Alaska that connects the Pacific and Arctic oceans.

Could Building a Dam Across the Bering Strait Save the Planet From Some Effects of Climate Change?

A preliminary study suggests that blocking off the waterway between Russia and Alaska could help the survival of a key system of ocean currents. But there could be potential unforeseen consequences, particularly to marine ecosystems

A humpback whale off the coast of Iceland

By Collecting Whale Breath, Researchers Detected a Deadly Virus in the Arctic for the First Time

Flying a drone with Petri dishes above exhaling whales helped scientists identify a dangerous pathogen that can damage the animals’ respiratory, immune and nervous systems

Researchers studied space dust in ocean sediment cores from the Arctic.

Researchers Used Space Dust to Build a Timeline of 30,000 Years of Arctic Sea Ice

Understanding the extent of past Arctic ice could help predict how the planet will respond to global warming

Loaded with colorful containers, a cargo ship floats right into the Port of Miami.

Smithsonian Photo Contest Galleries

Set Sail With These 15 Scenes of Sensational Ships

These seafaring shots are harbored in the archives of the Smithsonian Magazine Photo Contest

Ever since its departure from England exactly 180 years ago, on May 19, 1845, the Franklin expedition has captivated the public’s imagination.

The Shipwrecks From John Franklin’s Doomed Arctic Expedition Were Exactly Where the Inuit Said They Would Be

In May 1845, 129 British officers and crew members set out in search of the Northwest Passage on HMS “Erebus” and HMS “Terror.” None returned

Arctic sea ice is melting at an unprecedented rate.

New Research

The Arctic Could Have Its First ‘Ice-Free’ Day by as Early as 2027

In a new study, scientists used climate models to predict the alarming milestone

Ships float in Aasiaat’s harbor.

As Greenland’s Ice Sheet Melts, an Island Town Rises

Geologists are working with local communities to determine how residents can adapt as the area’s sea level, in effect, goes down

Polar bears are spending more time on land as sea ice shrinks.

Polar Bears Are Exposed to More Parasites, Viruses and Bacteria as the Arctic Heats Up

Pathogens are more common in polar bears living in the Chukchi Sea now than they were three decades ago, a new study suggests—but it’s not yet clear what that means for the mammals’ health

Scientists observed two bowhead whales synchronizing dive schedules whenever they were within earshot of each other.

How Did Two Bowhead Whales That Were 60 Miles Apart Sync Their Diving?

Researchers suspect the marine mammals may have been communicating across the vast distance

A sea turtle swims in a coral reef in Hawaii. Ocean acidification, found to be on the brink of crossing a boundary into higher-risk territory, can affect coral skeleton formation.

Earth Is on the Brink of Breaching a Seventh of Nine ‘Planetary Boundaries’ That Support Life

A new “health check” for our planet sounds an alarm bell on rising ocean acidification, which is driven by carbon dioxide levels in the atmosphere

Baby beluga whales and adults alike spend the summer in the Churchill River.

Watch Chatty Beluga Families Migrate With These Stunning Live Cams in Canada

Polar Bears International and Explore.org are once again capturing video footage and audio recordings of the social marine mammals as tens of thousands congregate in the Churchill River this summer

Male belugas were more likely than females to change the shape of their melons, or foreheads.

Belugas May Communicate by Changing the Shape of Their Squishy Foreheads

Scientists documented five different melon shapes among the marine mammals living in captivity: push, flat, lift, shake and press

Belugas head to Hudson Bay in the summer in droves to eat, molt and give birth.

Watch Tens of Thousands of Beluga Whales Migrate With These Live Streams

The marine mammals are gathering in Canada’s Hudson Bay and Churchill River—and their journey is a reminder of sea ice’s importance

Crews carefully lowered the bottles to a depth of 111 feet below the surface.

1,700 Bottles of Sparkling Wine Spent Six Months Beneath the Waters of the Norwegian Sea

The stash was submerged some 111 feet deep in temperatures as cold as 41 degrees Fahrenheit

Analyzing DNA found in the water off Greenland, researchers have found the signs of species on the move.

The Atlantification of the Arctic Ocean is Underway

The discovery of a tiny fish far from its normal range is a poignant reminder of the changes that are already happening

Thinning Arctic sea ice near Pituffik, Greenland, as captured in July 2022 

Arctic Could Be Sea Ice-Free in the Summer by the 2030s

A new study estimates climate change will lead to unprecedented melting in the Arctic a decade earlier than previously projected

Paleontologists discovered Oda's remarkably intact fossilized skeleton in Svalbard in 2008.

Unraveling the Mysteries of Oda the Ichthyosaur

Paleontologists used X-rays to identify the 240-million-year-old creature’s flattened and fossilized remains

Thor rests in Scarborough Harbor in England on December 31, 2022.

The Unusual European Journey of Thor the Walrus

It’s rare to see one of these massive marine mammals in Western Europe, but Thor spent several months delighting crowds in multiple countries

Polar bears are back in Churchill, Manitoba.

Polar Bears Are Gathering in Canada—and You Can Watch Them Live

Bears return to Churchill, Manitoba, every autumn to await the formation of sea ice on the Hudson Bay

A variegated snailfish (Liparis gibbus)

This Arctic Snailfish Is Loaded With Antifreeze Proteins

But climate change could threaten these cold-adapted fish, scientists say

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