A research team linked nearby stellar explosions to at least one, possibly two, mass die-offs after calculating the supernova ...

Around 600 million years ago, Earth was home to strange, soft-bodied sea creatures, but a powerful asteroid impact in what is ...

An ancient impact structure in remote northern Australia was recently spotted by one of NASA's Earth-observing satellite ...

The 700–1,300 feet-wide space rock deformed rocks more than six miles from the impact site when it hit 600 million years ago.

They flattened forests, left massive craters and even killed the dinosaurs. Learn all about Earth’s hugest asteroid strikes.

A 500-foot- wide space rock could inflict mass casualties across a state or a small country; those arrive every 20,000 years.