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

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

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 ...

We usually think of satellites as small objects orbiting planets or stars. But in the broader universe, galaxies themselves ...

While adding a dwarf planet to the roster of those already known is a coup, Dr. Gladman said, the survey's main goal is to establish precise orbits for a much larger set of objects, most of them ...

Expected Brown Dwarf Star DiscoveriesB While LSST is projected to discover thousands of brown dwarfs stars. Objects that are 13-80 times the mass of Jupiter and are often free-floating or orbiting ...

A bizarre planet defies cosmic norms: scientists have confirmed a giant planet orbiting in reverse around one star in a close ...

The Goblin is “about 300 kilometers in diameter, on the small end of a dwarf planet,” said Scott Sheppard, an astronomer at the Carnegie Institution for Science in Washington who discovered ...

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 ...

Most of what we know about satellite galaxies comes from studying the Milky Way and other similarly large galaxies. But a new ...