An asteroid measuring over 160 feet across will impact Earth only about every 1,000 years.

This big asteroid was discovered less than a fortnight before its flyby Earth. But any time you see a headline about asteroids flying by the planet, you can relax. Big and small asteroids fly by Earth ...

It's a bird. It's a plane. It's a skyscraper ... or at least, it's something as big as those things. Several large asteroids are set to pass by Earth this week, according to NASA's Jet Propulsion ...

More space technology must be developed to prevent "city-killing asteroids" from hitting Earth, experts recommended at a recent science conference. While the risk is low, mid-size asteroids near Earth ...

The 27-feet space rock is zooming past Earth at a whopping 45,522 mph.

Richard Binzel has been watching the skies for hazardous asteroids for more than 50 years. In 1995, he proposed the Near-Earth Object Hazard Index, later renamed the Torino scale, which rates ...