A collaborative team of scientists has discovered that life on Earth over three billion years ago relied on the metal ...

As astronomers continue finding new rocky planets around distant stars, high-pressure physicists are considering what the interiors of those planets might be like and how their chemistry could differ ...

Astronomers using the Gemini South telescope have confirmed that the atmosphere of a scorching exoplanet carries the same chemical fingerprint as its host star, providing the strongest direct evidence ...

A new analysis of rocks thought to be at least 2.5 billion years old helps clarify the chemical history of Earth's mantle -- the geologic layer beneath the planet's crust. The findings hone scientists ...

For many years, the search for extraterrestrial life has been based on the relatively straightforward premise that if a planet has liquid water, it must be ...

Cartoon of the Earth with cutaway showing the mantle and inner and outer core. Magnetic field lines produced by the geodynamo extend into space and interact with the solar wind. The iron-rich core at ...

People have long scratched their heads trying to understand how life ever got going after the formation of Earth billions of years ago. Now, chemists have partly unlocked the recipe by creating a ...

(CNN) — More than half a billion years ago on a frigid, ice-covered Earth, glaciers stirred up ingredients for complex life by bulldozing land minerals and then depositing them in the ocean, according ...

Study finds that rare Antarctic floods can deliver sudden carbon pulses into a sealed lake, Lake Untersee, feeding hidden ...

A nearby Earth-sized planet offers a rare chance to study how atmospheres survive or disappear on rocky worlds.