Earth as we know it offers majestic trees, meandering streams, and rolling hills. Yet below the Earth's surface, forces and elements like intense pressure and scalding magma simmer and stew—and make ...

An international team has made a significant breakthrough in understanding the tectonic evolution of terrestrial planets.

For decades, scientists have been baffled by two enormous, enigmatic structures buried deep inside Earth with features so ...

Scientists may finally be closing in on the origins of two colossal, mysterious structures buried nearly 1,800 miles inside ...

Apollo samples provide evidence: Researchers analyzed Moon rocks brought back by the Apollo missions and, for the first time, ...

About 4.5 billion years ago, a colossal impact between the young Earth and a mysterious planetary body called Theia changed everything—reshaping Earth, forming the Moon, and scattering clues across ...

Little is known about the long-destroyed moon-forming planet, Theia. But it may have been born in the inner solar system—just like Earth—a new study suggests ...

Gary Glatzmaier, professor of Earth and planetary sciences at UC Santa Cruz, has been elected to the National Academy of Sciences in recognition of his excellence in original scientific research.

Earth may have a moon today because a nearby neighbor once crashed into us, a new analysis of Apollo samples and terrestrial ...

If there was ever any doubt the 2011 discovery by a post-doctoral student was indeed the hottest rock on Earth, new findings from a Western-led research team are putting that uncertainty to rest.

A 60-million year old fossil palm leaf from Alaska. A new study by researchers including Isabel Montañez at UC Davis has produced the most accurate chart to date of how Earth's temperature has changed ...