These numbers show that a nearby supernova could well cause a mass extinction of life on Earth.

First of all, we could not expect civilizations to thrive in an environment where a nearby supernova occurred every 10 million years or so.

Its uranium and osmium content could have been caused by a nearby supernova.

Some astronomers wonder if the object actually exists in the brilliant nearby supernova that appeared two years ago.

The project also pursuit the aim of detecting nearby supernovas.

A nearby supernova comes once in a lifetime.

It would be like a nearby supernova going off.

Either they collapsed into new stars, or nearby supernovae blew them apart.

The formation of the Sun may have been triggered by shockwaves from one or more nearby supernovae.

Interestingly, the only modern nearby supernova, 1987A, has not revealed r process enrichments.