The spread of the ocean floor, as tectonic plates spread apart, is known but hard to observe. Scientists have now documented ...

Scientists have discovered new evidence that water was already helping shape Earth’s interior more than 3 billion years ago.

Off the coast of Vancouver Island, a slab of ocean floor has dropped by about five kilometers along a fault that scientists ...

Major clues to the origins of our planet—and life itself—are locked inside some three billion-year-old volcanic rocks from ...

A peer-reviewed study published in Science argues that Yellowstone’s volcanic system owes its heat and magma not to a deep ...

Western Australia’s Pilbara Craton is probably the last place you’d expect to learn anything about the role water played in ...

Scientists have uncovered a previously unknown Martian rock containing a mineral never before found on the Red Planet.

Seismic data from NASA’s InSight mission reveals a hidden compositional boundary inside Mars that matches what forms inside ...

For decades, our picture of Mars was of a dead desert world. Its magnetic field exists only in sparse patches. Its lakes and ...

Researchers at Brown have shown the first direct evidence for a massive geologic uplift of the entire Aleutian Island ...

California sits on an active plate boundary where the Pacific and North American plates grind past each other, producing frequent earthquakes.

Earth’s mantle appears to be leaking a little along Central Africa. If this continues to develop, this rift could grow into a new tectonic plate boundary—splitting the African continent in half. In a ...