Earth froze over 717 million years ago. Ice crept down from the poles to the equator, and the dark subglacial seas suffocated ...

Researchers analyzed radioisotopes in layers of fossilized volcanic ash. Decay of uranium to lead within tiny crystals enabled scientists to precisely pinpoint dates for certain events. They ...

Scientists have revealed how a “tag-team” between the oceans and continents millions of years ago devastated marine life – and altered the course of evolution on Earth. Their study has unearthed a new ...

The Toarcian Oceanic Anoxic Event (T-OAE), a major environmental upheaval occurring approximately 183 million years ago during the Mesozoic Era, stands as one of the most severe perturbations to Earth ...

Northwestern University Ph.D. student, Luca Podrecca takes a break from research in the field near Mount Ashibetsu in Japan. By studying prehistoric rocks and fossils emerging from the side of Mount ...