Supernovas may have had a role in two of Earth’s largest mass extinctions, study suggests
A research team linked nearby stellar explosions to at least one, possibly two, mass die-offs after calculating the supernova ...
600 Million Years Ago, an Asteroid Strike Shook the Planet – And Its Effects May Still Linger
Around 600 million years ago, Earth was home to strange, soft-bodied sea creatures, but a powerful asteroid impact in what is ...