The number of planets that orbit the sun depends on what you mean by “planet,” and that’s not so easy to define ...

The studies - both published in Icarus - look at something astronomers already knew: that Eris and Makemake, the second and fourth largest dwarf planets in our solar system, contain a lot of methane.

Pluto's Largest Moon Formed Through ‘Kiss and Capture’ Event Redefining Icy Worlds, New Study Explains Experts postulated a new theory about the largest moon of the dwarf planet Pluto. The planet had ...

Researchers accounted for the previously overlooked structures of the dwarf planet and moon in computer simulations of a ...

"We were definitely surprised by the 'kiss' part of kiss-and-capture. There hasn't really been a kind of impact before where the two bodies only temporarily merge before re-separating!" ...

University of Arizona researchers have unveiled evidence of romance at the farthest reaches of the solar system: a cosmic ...

Here’s how it works. Charon is the largest moon of the dwarf planet Pluto, but calling it a moon is really a misnomer; Pluto and Charon actually form a binary system. Whereas a moon usually ...

In 2005, Eris was discovered. It was considered the largest known dwarf planet in the solar system until a year later when Pluto was downgraded from being a planet. In 2008, tribal violence ...

The organic material found in a few areas on the surface of dwarf planet Ceres is probably of exogenic origin. Impacting ...

In a study published in AGU Advances, researchers from the Max Planck Institute for Solar System Research (MPS) used data ...

Ceres, the largest object in the asteroid belt, holds fascinating clues about the origins of organic molecules in ou.

The dwarf planet is a bizarre, cryovolcanic world. However, the organic deposits discovered on its surface so far are unlikely to originate from its interior. The organic material found in a few areas ...