Can Any Nearby Supernova Cause a Mass Extinction?
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.

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.