A round 66 million years ago, the reign of the dinosaurs came to a fiery end. An asteroid about 7 miles (12 kilometers) wide, ...

What happened the day the dinosaurs died? This video explores the catastrophic events surrounding the mass extinction of dinosaurs approximately 66 million years ago. It covers significant geological ...

The interstellar object hurtling toward the inner solar system, where Earth is located, is much larger than previously thought, astronomers say.