The space rock, which measures 150 feet across and is traveling at 38,922 miles per hour, is one of five on NASA's radar.

The six-mile-wide asteroid punched a one-way ticket toward extinction for all non-avian dinosaurs. Some 66 million years ...

The asteroid is estimated to be between 130 and 300 feet across. Astronomers are closely watching an asteroid that has a small probability of hitting Earth in less than eight years. On Thursday ...

Scientists are still determining the asteroid's size, but it's believed to be between 100 and 300 feet wide. According to NASA, an asteroid of this size could cause regional damage. The space ...

Estimated to measure around 12 feet across, the asteroid known as "2025 DQ" is expected ... Asteroids have orbits that bring them within 120 million miles of the sun. Most near-Earth objects ...