Planet nine might be pulling our solar system out of alignment

http://www.extremetech.com/wp-content/uploads/2016/08/planet-nine-artist-illustration-768x424.jpg 768w, http://www.extremetech.com/wp-content/uploads/2016/08/planet-nine-artist-illustration-640x353.jpg 640w, http://www.extremetech.com/wp-content/uploads/2016/08/planet-nine-artist-illustration-106x59.jpg 106w, http://www.extremetech.com/wp-content/uploads/2016/08/planet-nine-artist-illustration-672x371.jpg 672w, http://www.extremetech.com/wp-content/uploads/2016/08/planet-nine-artist-illustration.jpg 1344w" sizes="(max-width: 300px) 100vw, 300px" />A planet we’ve never seen may have shaped the solar system as we know it.