Our planet’s first known mass extinction happened about 440 million years ago. Species diversity on Earth had been increasing ...

A research team linked nearby stellar explosions to at least one, possibly two, mass die-offs after calculating the supernova ...

Deaths of nearby massive stars may have played a significant role in triggering at least two mass extinction events in ...

Scientists don't call it the "Great Dying" for nothing. About 252 million years ago, upward of 80% of all marine species ...

Fossils from China’s Turpan-Hami Basin reveal it was a rare land refuge during the end-Permian extinction, with fast ...

The most dangerous parts of a supernova explosion are the outputs like X-rays and gamma rays. Even though they only share a small fraction of a supernova's power, they are extremely dangerous. But ...

After Earth's worst mass extinction, surviving ocean animals spread worldwide. Stanford's model shows why this happened.

A new study reveals that Earth's biomes changed dramatically in the wake of mass volcanic eruptions 252 million years ago.

On land, large herbivores like Moschops also disappeared. This extinction cleared the way for dinosaurs but wiped out most large amphibians and early archosaurs—creatures that would’ve ...

The world around us is constantly changing, and with these changes come questions that challenge our understanding of life on ...