A research team linked nearby stellar explosions to at least one, possibly two, mass die-offs after calculating the supernova ...
Five 'mass extinctions' have decimated our planet since it was formed - now scientists claim the answers to two could be ...
Instead, the team hypothesized a stellar explosion may have been a potential factor in the Late Devonian extinction event 372 million years ago and one ... cause of the end-Cretaceous extinction ...