Exploding stars known as supernovas may have sparked mass extinctions that wiped out up to 85% of animals on Earth. ‘Supernova explosions are some of the most energetic explosions in the ...

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 of ...

The calculations suggested that 2.5 supernovas might affect Earth in some way every 1 billion years, equating to one or two in the past 500 million years during which life evolved on the planet.

A massive comet trail may have caused climate upheaval on Earth more than 12,000 years ago, sparking the Younger Dryas.

By Katie Hunt, CNN (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 ...