The world of Sailor Moon does not just relate to our own solar system, but the many unknown planets from the original story ...

Astronomers have long suspected that an enormous, unseen planet is hiding somewhere far beyond Neptune, quietly shaping the ...

Floating around at the edge of the Solar System are leftovers from its formation. This is the Kuiper Belt, which is composed of chunks of rock and ice like comets, dwarf planets, and random objects ...

The solar system has many more ... that a binary pair of Kuiper Belt objects, known as the Altjira system, is actually made up of three separate bodies orbiting one another in a complex triad.

The asteroid, named 2024 YR4, flew into view of the Asteroid Terrestrial-impact Last Alert System (ATLAS) telescope in ...

Classified as a super-Earth and a sub-Neptune, these two new celestial bodies are among the most common types of exoplanets found in the Milky Way galaxy, yet are absent from our own solar system.

The discovery of salty mineral evaporites on Ryugu indicates that watery environments may have been widespread in the early ...

The solar system is also home to many other cosmic bodies including asteroids ... This theory was known as the heliocentric model. It was controversial as accepted wisdom at the time (supported ...