Researchers have discovered argon trapped in air-hydrate crystals in ice cores, which can be used to reconstruct past temperature changes and climate shifts. On the massive sheets of ice that stretch ...

Indeed, the oldest directly dated ice ever retrieved from Earth has been pulled from the frozen expanse of East Antarctica, ...

In the Allan Hills region of Antarctica, glaciologists have uncovered a 6-million-year-old ice core, preserving samples of ...

For years, scientists have puzzled over how Mars lost the thick atmosphere it once had. That atmosphere was essential for liquid water to exist on the planet’s surface, billions of years ago. Today, ...