A ninth planet may exist beyond Neptune in the Kuiper Belt, a region populated by icy bodies that orbit the Sun.

Astronomers search for a hidden ninth planet beyond Neptune's orbit Gravitational anomalies suggest presence of Planet Nine in Kuiper Belt New telescope technology may soon confirm existence of Planet ...

After a decade-long search, some scientists say a growing number of clues point to the existence of a hidden planet in the Kuiper Belt beyond Neptune — and they may soon have the opportunity to find ...

The 2005 revelation set off a chain of events that led to Pluto’s still-controversial demotion from planet status the following year. But now, just as the Kuiper Belt effectively took a ninth ...

A team of researchers believes they have found the most convincing evidence to date for the existence of a hidden planet, which may be Planet Nine. According to a recent study, this planet ...

Based on the current literature, Siraj sees a few possibilities. One is that the Rubin Observatory, with its increased capabilities, might be able to see a planet beyond Neptune. Another possibility ...

For years it has been debated that another planet lives in the solar system. But no one has been able to find it. There have been advocates for it and against it. But going by data gathered in the ...