Just because Pluto was ruled out as a planet in 2006 doesn’t mean our solar system only has eight planets. The search for Planet Nine is far from over as scientists continue to uncover clues ...

A team of astronomers believes they may have spotted a serious candidate for a ninth planet in our Solar System. This object, located far beyond Neptune, could revolutionize our understanding of our ...

Planets usually stay close to their host stars, tracing steady paths shaped by gravity. Yet some planets break free and drift alone through the Milky Way.

Researchers at the California Institute of Technology (Caltech) have found new evidence that further suggests there is a ninth planet in our solar system. Nicknamed "Planet Nine," researchers said ...

Scientists measured mass and distance of free floating planet drifting through space without star for first time.

The interstellar object known as 3I/ATLAS, roughly the size of Manhattan, has recently demonstrated an unexpected non-gravitational acceleration as it swings past the Sun. This marks the first-ever ...

Astronomers have been fascinated after spotting an object earlier this year that came from interstellar space as is now hurtling through our inner solar system. Regardless, it’s an interesting visitor ...

Scientists have discovered more than 6,000 planets beyond our solar system. What if some of them aren't planets at all, but ...

Interstellar objects like 3I/ATLAS that have been captured in planet-forming discs around young stars could become the seeds of giant planets, bypassing a hurdle that theoretical models have ...