Mike Brown is convinced that beyond Neptune, at the far reaches of our solar system, there's an unseen giant planet. "This is the 5th largest planet in our solar system, lurking out there, waiting to ...

We have discovered thousands of exoplanets in the last few decades, while the number of planets in the Solar System has remained at eight – but our discovery of more might not yet be over. A team of ...

Astronomers continue the search for a massive unseen planet that could reshape our understanding of the solar system.

Astronomers believe there is a Planet Nine in the outer solar system beyond Neptune. A team led by Amos Chen from the National Tsing Hua University, is searching for Planet Nine’s heat signature. When ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Planet Nine is a hypothesized massive planet, first proposed in 2014, that is speculated to orbit ...

Researchers for objects that moved slowly between IRAS and AKARI detections. IRAS and AKARI are far-infrared, all-sky surveys completed 23 years apart. They looked in the Kuiper belt. They produced ...

Some scientists are convinced that beyond Neptune, there's a planet they've yet to see. This so-called "Planet 9" is so far away, it would be a faint object. The stretch of sky researchers would have ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. A new discovery may mean Planet Nine is cancelled. . | Credit: nagualdesign; Tom Ruen, background ...

This is an image of Ceres, the nearest dwarf planet to Earth in the solar system. A new dwarf planet extremely far from the sun may have just been discovered. Credit: NASA / JPL-Caltech / UCLA / MPS / ...

Johannes holds an MSci in Neuroscience from King’s College London, where he worked on projects involving Alzheimer’s disease and Fragile X syndrome.