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 ...

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 ...

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 ...

system. Detailed structure of such inner region has been revealed for the first time thanks to the mid-infrared high-resolution observations. The results here have a large impact on the study of ...

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 ...

Most meteorites that have landed on Earth are fragments of planetesimals, the very earliest protoplanetary bodies in the solar system. Scientists have thought that these primordial bodies either ...