Some of the most massive and influential stars in the universe are OB stars. These blue giants, many times more massive than the Sun, are short-lived but powerful forces that shape their surroundings.

New research suggests that powerful star explosions, called supernovae, may have caused at least two mass extinctions in Earth’s history. Scientists from Keele University believe that these massive blasts stripped away Earth’s ozone layer,

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.

The rate of stars going supernova near Earth appears to match two mass extinctions -- 372 million years ago and 445 million years ago.

Scientists have found a rare life "oasis" where plants and animals thrived during Earth's deadliest mass extinction 252 million years ago.

A new census of massive stars points to a correlation between core collapse supernovae and two of the last five mass extinction events here on Earth.

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 Universe’, said Dr Nick Wright,