Astronomers propose a new hypothetical planet, Planet Y, beyond Neptune, based on observed orbital anomalies in the Kuiper ...

The textbook picture of how planets form—serene, flat disks of cosmic dust—has just received a significant cosmic twist.

Recent research suggests a warp in the orbital plane of Trans-Neptunian Objects (TNOs) between 80 and 400 AU, hinting at the ...

Is there a massive undiscovered planet on the outer reaches of the Solar System? The idea has been around since before the discovery of Pluto in the 1930s. Labelled as planet X, prominent ...

Travel through time to witness some of the most remarkable episodes in our solar system's history, uncovering its ancient ...