Geochemists are challenging commonly held ideas about how gases are expelled from the Earth. Their theory could change the way scientists view the formation of Earth's atmosphere and those of our ...

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 ...

Solar wind has slowly torn away Mars’ atmosphere over time, helping to transform a planet that was once warm and wet into the cold, dry, inhospitable one we see today. Chemical sleuths explain in a ...

Most scientists agree that Mars once had a vibrant atmosphere similar to the Earth’s. Such an atmosphere would have differed slightly in composition from that of the atmosphere on Earth, but ...

Troy, N.Y. – Geochemists at Rensselaer Polytechnic Institute are challenging commonly held ideas about how gases are expelled from the Earth. Their theory, which is described in the Sept. 20 issue of ...

A cross section through the ice core used in this study (left), with one of the air-hydrate crystals in the core examined in this work (right; Tsutomu Uchida, et al. Journal of Glaciology. November 18 ...

Researchers have discovered argon trapped in air-hydrate crystals in ice cores, which can be used to reconstruct past temperature changes and climate shifts. Researchers have discovered argon trapped ...

On the massive sheets of ice that stretch across Greenland and Antarctica, the temperature is so low that not even the summer sun can melt the snow deposited onto them. As the snow accumulates without ...