What seemed like new planets around Fomalhaut were actually expanding dust clouds from violent planetary collisions seen by Hubble.

Two cosmic collisions near the star Fomalhaut solve the mystery of a disappearing "planet" and show rare planetesimal crashes ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Main: An illustration shows an asteroid streaking toward the molten primordial Earth with the sun ...

University of Warwick astronomers have uncovered the chemical fingerprint of a frozen, water-rich planetary fragment being consumed by a white dwarf star outside our solar system. Subscribe to our ...

A gentle bump goes a long way in the Kuiper Belt. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. A new study from researchers at the Southwest ...

Psyche appears to be an iron core, or part of one, produced during the history of collisions experienced by a fairly large asteroid with other large asteroids. The collision or collisions were likely ...

The term “planetesimal” refers to small bodies that orbited the Sun prior to the planets’ formation. In 2006, the International Astronomical Union (IAU) ruled that a “dwarf planet” is a nearly ...

Astronomers tracking a nearby star system thought they had spotted an exoplanet reflecting light from its star. Then it ...