Oceans

Trillions of tiny animals may be coordinating their movements in ways that affect every organism on the planet

Bizarre sea creatures, a new view of the ocean, the race to the moon, and more

After a mass algal die-off in the Pacific, researchers used satellites, undergrads, artificial intelligence and people wading in tide pools figure out what was lost—and how it might come back

A night photograph taken from a sailboat near the island of Java validates a satellite image of a giant, glowing “milky sea”

Our kelp forests are largely unobserved, but now they are vanishing. To understand why, scientists dive underwater and look down from space. Their research reveals a complex system at risk of collapse.

An algorithm-aided analysis of satellite images reveals the size, distribution and sources of oil slicks at sea

The Department of Energy is helping to fund 11 projects that are designed to harness the power of moving water

A new seal’s-eye view shows these specialized hairs in motion at sea

These organisms’ private “mucospheres” play an outsize role in the planet’s carbon cycle

Sharks need our help, but many widespread conservation messages are not based on scientific evidence

But the U.S. must probe even further to catch up with China’s access to the ocean’s deepest reaches

Graphics show how reefs around the globe are faring