Astronomers have picked up evidence of an Earth-sized world, distinct from the previously hypothesised Planet Nine and Planet ...

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

Scientists have developed a new and improved method to better understand "steam world" exoplanets, a move that could refocus ...

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

Using a cutting-edge adaptive optics system developed at the University of Arizona's Steward Observatory, a growing planet ...

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

On Aug. 20, 1977, NASA launched the Voyager 2 spacecraft on a mission to explore the outer planets. Despite its name, this ...

Yet, despite using the JWST's sensitive Near-Infrared Spectrometer, or NIRSpec, astronomers led by Piaulet-Ghorayeb found no ...

NASA’s OSIRIS-REx samples from asteroid Bennu reveal stardust, water-driven chemistry, and clues to life’s origins in the ...

These strange objects could explain how water arrived on Earth, but may also be a previously unrecognised threat to our ...