How many dwarf planets are there in our solar system? The recent discovery of 2017 OF201 makes the tally anywhere between five and 18, plus hundreds of potentially undiscovered ones, depending on ...

Astronomers have discovered a new world circling the outer edges of our solar system. So far, there are only four known ...

New discoveries of objects in the Kuiper Belt have also presented challenges for the Planet Nine theory. The latest is known ...

A newly discovered dwarf planet called 'Ammonite' (2023 KQ14) has been spotted in the outer solar system, and it could be ...

Astronomers have found the strongest evidence yet of a giant planet in the "habitable zone" orbiting a star in the nearest ...

Astronomers have discovered a new pink dwarf planet that has the most distant orbit in our solar system. The discovery suggests there could be thousands of similar planets beyond the known edge of ...

The Goblin comes no closer than 65 AU. Only a few known objects in our solar system have comparable orbits, such as dwarf planets 2012 VP113 (nickname: Biden) and Sedna.

The dwarf planet, named 2015 RR245 for now, has an unusual orbit — it's very large and looping, and takes 700 years to travel around the sun. The researchers estimate that little 2015 RR245 is ...

Known for now as 2014 UZ224, it joins a growing list of dwarf planets known in our solar system: Ceres, Haumea, Makemake, Eris and — most famous of all — Pluto ...

2015 will be remembered as the year of the dwarf planets. Dwarf planet Pluto and its five moons will be revealed as the New Horizon space probe reaches it for a few hours on July 14.

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