Backed by a National Science Foundation grant of more than $500,000, Pfeifer, the lead principal investigator, and a team of ...

(CNN) — Violent supernovas may have caused two of Earth’s largest mass extinctions that have never been completely explained, according to a theory put forward in new research. During the final stages ...

At least two mass extinction events in Earth's history were likely caused by the "devastating" effects of nearby supernova explosions, a new study suggests. Researchers at Keele University say these ...

Supernova destroying planet, illustration. A rocky planet lies in the wake of its star, which has just gone supernova. The explosion shatters the planet. A complete census of massive stars in our part ...