View Full Profile. Learn about our Editorial Policies. Most scientists agree that five events in Earth’s history qualify as “mass extinctions”—defined as events where more than three-quarters of ...

Two of Earth's largest mass extinction events were likely triggered by the fallout from two supernovae in nearby space. This ...

Two nearby explosive massive star deaths, or supernovas, may have triggered mass extinction events in Earth's distant past, ...

New research suggests the violent explosions of dying stars may have caused two of Earth’s biggest mass extinctions millions ...

(Picture: NASA Goddard / SWNS) Exploding stars known as supernovas may have sparked mass extinctions that wiped ... If they’re big enough, those supernovas leave a black hole in their wake.

The end-Permian mass extinction, also known as the "Great Dying," took place 251.9 million years ago. At that time, the supercontinent Pangea was in the process of breaking up, but all land on ...

The end of the Cretaceous Period saw one of the most dramatic mass extinctions Earth has ever seen. Find out what brought about the end of the dinosaurs and many other animals too. The fossil record ...

Violent supernovas may have caused two of Earth’s largest mass extinctions that have never ... The calculations suggested 2.5 supernovas might affect Earth in some way every 1 billion years ...