Planet Nine the undiscovered planet at the edge of the solar system appears to be responsible for the unusual tilt of the Sun, according to a new study.

Planet Nine's presence could cause the elimination of at least one of our giant planets, hurling them into interstellar space after the sun dies. 

"Objects found far beyond Neptune hold the key to unlocking our Solar System's origins and evolution."

Two groups of scientists reach the same conclusion about the elusive ninth planet.

It has likely had a really rough life.

Poor super-Earth.

The results may explain why telescopes haven’t spotted it yet.

The planet may also be linked to periodic mass extinctions on Earth.