A new analysis estimates that the asteroid belt is steadily losing mass each year, and may not be as permanent a feature of the solar system as we thought. When you purchase through links on our site, ...

Orbiting between Mars and Jupiter is an enormous ring of space rocks. The region, known as the asteroid belt, is home to an estimated 1.9 million asteroids that are larger than 1 kilometer in diameter ...

With a diameter of around 2,300 feet, the newly-detected asteroid completes a full rotation in just under two minutes.

Scattered between the orbits of Mars and Jupiter lies the main asteroid belt — a vast region filled with rocky remnants left over from the birth of the solar system. These objects, known as asteroids ...

On 13 April 2029, the asteroid 99942 Apophis will pass safely at a distance of about 32,000 kilometers above Earth's surface, within the geostationary orbit, posing no threat to the planet. This ...