NASA's SWOT satellite has revealed unseen ocean depths, mapping seafloor features that shape life, currents and tectonics.

The Earth's interior is composed of four layers, three solid and one liquid—not magma but molten metal, nearly as hot as the surface of the sun. The deepest layer is a solid iron ball, about ...

New research is reshaping how scientists understand the earliest days of Earth’s formation—suggesting that the deep interior ...

For decades, scientists have had better maps of the Moon and Mars than of Earth’s own ocean floor. But thanks to NASA’s Surface Water and Ocean Topography (SWOT) satellite, a groundbreaking new ...

Earth, our home planet, is a world unlike any other. The third planet from the sun, Earth is the only place in the known universe confirmed to host life. With a radius of 3,959 miles, Earth is the ...

We know more about the Moon’s surface than Earth’s ocean floor — but that’s changing fast. A NASA-supported team used a ...

Venus—a hot planet pocked with tens of thousands of volcanoes—may be even more geologically active near its surface than ...

Scientists uncover surprising evidence that the Kerguelen hotspot, responsible for the 5,000-kilometer-long Ninetyeast Ridge, ...

Experts analyzed satellite imagery of planetary surface cracks and compared them with Earth's geologic features, searching ...

Deep below the Earth’s surface, rock and mineral formations lay hidden with a secret brilliance. Under a black light, the chemicals fossilized within shine in brilliant hues of pink, blue and green.