News Planetary Science

New clues in search for Planet Nine

New location, brightness projections raise hopes of actually spotting distant world

illustration of planet 9

SOLAR SYSTEM SEARCH  Researchers are trying to pin down where to find a hypothetical ninth planet in the solar system (illustrated). 

R. Hurt/IPAC, Caltech

By Christopher Crockett

- More than 2 years ago

More clues about where to search for a possible ninth planet lurking in the fringes of our solar system are emerging from the Kuiper belt, the icy debris field beyond Neptune.