For almost a decade, astronomers have been searching for a ninth planet in the solar system. Recently, new evidence of ...

A newly discovered space rock zoomed safely by Earth on Wednesday (Oct. 15) at only about a quarter of the average distance ...

The simulation of the Solar System that came the closest to the observation was the presence of a small planet, between the ...

A newly discovered dwarf planet could hold the key to unlocking the mysteries of our solar system’s outer reaches — but what ...

The star WISPIT 2 was first observed using VLT-SPHERE (Very Large Telescope – Spectro-Polarimetric High-contrast Exoplanet REsearch), a ground-based telescope in northern Chile operated by the ...

An international team of astronomers, including researchers from the University of Galway, has hailed the "remarkable discovery" of a newly detected planet, WISPIT 2b. Estimated to be just five ...

Astronomers have discovered a brand-new world hiding out beyond Pluto. While exciting, the discovery of this new world could challenge long-standing theories of the existence of Planet Nine. In fact, ...

Astronomers used a telescope in Hawaii to find a new object on the outer edges of our solar system, helping to fuel evidence of a long-standing theory about Planet Nine, or Planet X. For years, ...

A new study suggests yet another theory for a possible extra planet in our solar system, likely of a size between Mercury and Earth. The authors dubbed it Planet Y.