A newly identified tectonic "regime" may rewrite our understanding of how rocky worlds evolve, scientists report in a new ...

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

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 ...

One of the most elegant theories about the origins of life on our planet is that it was kick-started by a delivery from outer ...

A Rutgers researcher and collaborators have linked unusual geological anomalies to Earth’s molten origins and its unique habitability. For many years, researchers have struggled to understand two ...

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 ...

In 1995, a pair of scientists discovered a planet outside our solar system orbiting a solar-type star. Since that ...

Snapshots from six computer simulations illustrating the distinct tectonic regimes of terrestrial planets, including the newly discovered ...

About 4.5 billion years ago, Earth had a violent neighbor. A young, still-forming planet named Theia slammed into our world with enough force to melt vast portions of its mantle and scatter a huge ...

Scientists have detected some of the oldest signs of life on Earth using a new method that recognizes chemical fingerprints ...

Scientists found rocks deep inside Earth's mantle that generate hydrogen and could reveal clues about deep energy and the ...

Scientists traced the Moon's parent planet Theia to the inner Solar System, solving a 4.5-billion-year mystery.