Just over half a billion years ago, Earth was rocked by a global mass extinction event, a dramatic interruption of the ...

Violent supernovas may have caused two of Earth’s largest mass extinctions that have never been completely explained, according to a theory put forward in new research. During the final stages in the ...

Some of the most massive and influential stars in the universe are OB stars. These blue giants, many times more massive than ...

The mass extinction that wiped out nearly all life on Earth just before the dinosaurs evolved may have been caused by a global temperature drop rather than a rapidly warming climate. The End Triassic ...

Learn how the emergence of new plankton species started life's swift recovery after the asteroid impact that killed most ...

(CNN) — A cataclysm engulfed the planet some 252 million years ago, wiping out more than 90% of all life. Known as the Great Dying, the mass extinction that ended the Permian geological period was the ...

At some point in the deep past, humans may have come frighteningly close to disappearing altogether. Here’s what we know, ...

In a groundbreaking study, new fossil evidence has shed light on the mysterious 5-million-year heatwave that followed Earth’s most catastrophic extinction event—known as the Permian-Triassic Mass ...

Everyone knows that dinosaurs are extinct, and most people have some idea about how it might have occurred. But the exact periods in history when it happened are less well known. Was it a single ...