Sedimentary rocks have unveiled a fascinating chapter in Earth’s geological history, revealing ancient ocean floor cooling. This discovery sheds light on previously unknown changes in ocean ...

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 ...

A research team has found that ancient rocks and fossils from long-extinct marine reptiles in Angola clearly show a key part of Earth's past -- the splitting of South America and Africa and the ...