New high-contrast images from SPHERE show a stunning variety of debris disks shaped by collisions of tiny planet-building ...

Let’s be honest: the asteroid belt is a bit of a mess. It is full of big rocks hurtling around at high speeds, occasionally getting tossed towards assorted planets, and generally causing a ruckus. On ...

Lying between Mars and Jupiter is a massive ring of rock debris—the asteroid belt. Now thin, it’s fading away gradually. In a new study, planetary scientist Julio A. Fernández of Uruguay’s Universidad ...

Observations with the instrument SPHERE at ESO's Very Large Telescope have produced an unprecedented gallery of "debris disks" in exoplanetary systems.

A NASA probe launched into space Friday on a 2.2-billion-mile journey to a huge, metal-rich space rock in the main asteroid belt between Mars and Jupiter. The Psyche spacecraft lifted off atop one of ...

In an article published in the journal Icarus, researchers at São Paulo State University (UNESP) and collaborators report the findings of a study reconstituting the formation of the dwarf planet Ceres ...

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 ...

Astronomer used to think that the Kuiper Belt was a few hundred times larger than the Asteroid belt. They thought it was a donut shaped structure that started at Neptune and extended out 2 billion ...

An Australian startup wants to recycle a geostationary satellite to get an up-close look at the "doomsday" asteroid Apophis.

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 ...

Observations of 1 Ceres, the largest known asteroid, have revealed that the object may be a “mini planet,” and may contain large amounts of pure water ice beneath its surface. The observations by NASA ...

The latest discoveries about Vesta challenge its traditional classification. This giant asteroid might actually be a remnant of a forming planet rather than a minor planet. Scientists long believed ...