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

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

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

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 ...

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 ...

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 ...

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.

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.

In the clean room of the Spacecraft Assembly Facility at NASA’s Jet Propulsion Laboratory, scientists wear suits and masks while working on the Mars 2020 rover to avoid contamination. Credit: NASA/JPL ...

An essential amino acid that is mistakenly believed to cause drowsiness after eating turkey has been found in an asteroid for the first time, giving scientists clues to the origin of life on Earth.