Nasa says it is likely mysterious Planet Nine DOES exist.
The existence of ‘Planet Nine’ has been a source of fierce debate within the scientific community since it was first theorised in 2014.
Researchers are now using the advanced Subaru Telescope, in Hawaii, in the hope of finding out more it and where it came from.
Dr Konstantin Batygin, a planetary astrophysicist at the California Institute of Technology, or Caltech, said: “There are now five different lines of observational evidence pointing to the existence of Planet Nine.
“If you were to remove this explanation and imagine Planet Nine does not exist, then you actually generate more problems than you solve.”
Dr Batygin’s research examined the orbits of six objects in the far out Kuiper Belt, a region of icy bodies stretching from Neptune into outer space, and found they all had elliptical orbits around a central point.
“The existence of Planet Nine is the only thing that can explain the weirdness of these high-inclination orbits. It turns out that Planet Nine provides a natural avenue for their generation.
“These things have been twisted out of the solar system plane with help from Planet Nine and then scattered inward by Neptune.”
The researchers believe the Subarau Telescope provides them with the best chance of finding the wandering mass.