There’s a 40% chance Planet Nine exists, new study claims

There has been a lot of back and forth about the existence of a mysterious ninth planet, often referred to as “Planet Nine” or even “Planet X.” Now, though, researchers say there is likely at least a 40% chance that Planet Nine actually exists.

The new research is published in the journal Nature Astronomy, and it posits that due to the way planets form, it is entirely possible that a ninth planet might exist somewhere beyond the reaches we’ve explored within our solar system.

A lot...