Lying between Mars and Jupiter is a massive ring of rock debris—the asteroid belt. Now thin, it’s fading away gradually.

A new analysis estimates that the asteroid belt is steadily losing mass each year, and may not be as permanent a feature of ...

The asteroid belt between Mars and Jupiter contains ancient, ice-covered rocks that may have delivered much of Earth’s water ...

In April 2029, Apophis is predicted by NASA to come within 32,000 kilometers (20,000 miles) of the Earth's surface. Closer ...

If such ‘twilight’ asteroids approach Earth, "they could pose serious impact hazards," warned the astronomer behind the ...

Between the orbits of Mars and Jupiter lies a ring-shaped region called the asteroid belt, home to the vast majority of our solar system’s space rocks. The asteroid belt is as old as the solar system ...

The OSIRIS-REx spacecraft's name has been changed to OSIRIS-APEX for its new mission to asteroid Apophis. See its journey to ...

NASA is tracking a house-sized asteroid that’s approaching Earth at a zippy 36,216 miles per hour. The asteroid—known as “2025 TC”—is projected to make its closest approach at just 53,400 miles from ...

The way an asteroid spins -- either smoothly on its axis or in a chaotic tumble -- depends on how many times it has been hit by other objects in space. At the EPSC-DPS2025 Joint Meeting in Helsinki, ...