If it was once warm and wet, it means the heat-trapping carbon had to go somewhere.Image: Nasa/Getty Images Evidence of ... and living organisms. Plate tectonics — the shifts and collisions ...

Over 4.6 billion years ago, Earth took shape from a spinning cloud of dust and gas surrounding the young sun. Tiny particles ...

Scientists found new evidence that Earth’s crust is peeling underneath the Sierra Nevada in California. The process might be ...

A new study led by a University of Calgary scientist has found evidence that suggests Mars once had a carbon cycle, giving further support for the habitability of the red planet.

Hazen realized he could use the pressure bomb to test this theory. The device (technically ... On earth, volcanoes emitted basalt, and plate tectonics made ores of copper, lead and zinc.

This way, the department can explain to nervous citizens why their pictures have dropped from ... was finally found with the discovery of plate tectonics. When tectonic plates move—as they ...

Researchers have discovered that the underside of the North American continent is dripping away in blobs of rock—and that the remnants of a tectonic plate sinking in Earth's mantle may be the ...