Earth, Extinction event

About 252 million years ago, 80 to 90 percent of life on Earth was wiped out. In the Turpan-Hami Basin, life persisted and ...
The mass extinction that ended the Permian geological epoch, 252 million years ago, wiped out most animals living on Earth.
"If a massive star were to explode as a supernova close to the Earth, the results would be devastating for life on Earth," said Nick Wright, an astrophysicist at Keele University in the United Kingdom ...
At least two mass extinction events in Earth's history were likely caused by the "devastating" effects of nearby supernova ...