A vast ring of rocky leftovers between Mars and Jupiter, the asteroid belt preserves clues to how the planets — and Earth ...

SPHERE’s detailed images of dusty rings around young stars offer a rare glimpse into the hidden machinery of planet formation. These bright arcs and faint clouds reveal where tiny planet-building ...

The International Astronomical Union (IAU) currently recognizes five dwarf planets in our solar system, though there are likely many more. The most famous of the bunch is Pluto, way out beyond 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 ...

Before the asteroid belt, there was a planet. Some called it Maldek. It had oceans, an atmosphere, and possibly life. Then ...

Millions of asteroids, not a planet, exist in the asteroid belt. The asteroid belt's total mass is only a small fraction of the Moon's mass. Meteorite analysis suggests the asteroids didn't originate ...

Was Ceres born in the main asteroid belt, or did it migrate there from the outer solar system? When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

An artist's illustration shows the James Webb Space Telescope peering out into the solar system toward the asteroid belt. Ella Maru and Julien de Wit Every few years, an asteroid that’s about the size ...

New high-contrast images from SPHERE show a stunning variety of debris disks shaped by collisions of tiny planet-building bodies. The structures often resemble our asteroid and Kuiper belts, hinting ...

The asteroid belt, a ring of rubble between Mars and Jupiter, has sometimes been written off as discarded leftovers from the solar system's start. But new research published in the journal Nature ...

A surprising discovery has been unveiled by astronomers as they have categorized the 40,000th near-Earth asteroid.The recent ...

The giant planets weren't always where we find them today. Jupiter, Saturn, Uranus and Neptune formed in a more compact ...