While Charon is currently listed as a satellite or moon by the International Astronomical Union (IAU), consideration is being given to it perhaps being classified as a dwarf planet in its own right, ...

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 ...

The organic material found in a few areas on the surface of dwarf planet Ceres is probably of exogenic origin. Impacting asteroids from the outer asteroid belt may have brought it with them.

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 ...

Using AI to comb through data gathered by NASA's Dawn spacecraft, scientists have conducted a detailed scan of the dwarf planet Ceres to map regions rich in organic molecules to determine whether ...

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

Scientists have discovered a new type of planetary collision called “kiss-and-capture,” where Pluto and proto-Charon briefly ...

Because the Moon is over a quarter the diameter of Earth, the Earth-Moon system is often cited as the pairing in our Solar ...

Five of the brightest planets will be visible to the naked eye. With help, you may even spot Uranus and Neptune.

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According to Dr. Grundy, Pluto is a planet. "I use the word 'planet' to refer to it, and most of the planetary science ...