Is there a massive undiscovered planet on the outer reaches of the solar system? The idea has been around since before the ...

"It is possible that a planet once existed in the solar system but was later ejected, causing the unusual orbits we see today ...

For reference, Pluto’s average distance from the Sun is about 40 AU, so 2023 KQ14 is quite distant. At 23.4 billion miles (37 ...

A tiny object far beyond Pluto, newly discovered by the Subaru Telescope, could reshape our understanding of the early Solar System. Named 2023 KQ14, this rare “sednoid” follows an unusual orbit that ...

The Subaru Telescope has made an exciting discovery: a small body beyond Pluto, with implications for the formation, ...

Every once in a while, space gives us something totally unexpected. Well this time, the solar system is surprising us with a ...

As Voyager 1 pushes beyond Pluto, it reveals a shocking truth,the solar system is far vaster and more mysterious than we ever ...

Astronomers discover Ammonite, a rare icy object beyond Pluto, challenging Planet Nine theory and offering clues to the solar ...

If it weren't for the new budget, New Horizons could keep exploring the outer reaches of the solar system into the 2030s.

The celestial body's unusual orbit “implies that something extraordinary occurred" in the early days of the solar system—and ...

(Web Desk) - Astronomers have discovered a new world circling the outer edges of our solar system. Researchers using the ...