Something strange is happening underwater, off the coast of Norway—and it’s not just another seafloor oddity. These odd structures, now called sinkites, are turning our understanding of Earth’s layers ...

Hidden inside a piece of agatized coral lies a natural masterpiece over 20 million years old. When cut open, its interior reveals vivid crystal formations that look like alien landscapes frozen in ...

At over 4 billion years old, the Earth has seen civilizations come and go. While many of these civilizations have been studied, others have been swallowed up by the planet and nearly forgotten about.

A time crystal is a form of matter that shows continuous, repeating patterns over time, much like how atoms in a normal crystal repeat in space. Examples once existed in only complex, quantum matter, ...

NOAA is mapping Cape Cod Bay seafloor for the first time in decades, using sonar to chart hazards and update nautical charts ...

Scientists have spotted something dramatically unusual in the ocean, and it could be a warning sign of things to come. Warm air dances with cold air; cold water chases warm water. It's all a part of a ...

For millions of years, a fragment of ice and dust drifted between the stars—like a sealed bottle cast into the cosmic ocean.

View of the underwater remains of the British cargo ship "Thistlegorm," which was sunk by German aircraft in 1941 after being deployed to transport military supplies from England to Egypt during World ...

During her hunt for the Egyptian queen’s lost tomb, National Geographic Explorer Kathleen Martínez uncovered the sunken landscape near the ruins of Taposiris Magna. Archeologist Kathleen Martínez and ...