Is Planet X there or is it not? :) And at the potential extreme distances it could be at, even if there, how do you find it, coupled with such an enormous radial field of possible locations?
"A new analysis of data collected by NASA's Wide-Field Infrared Survey Explorer (WISE) spacecraft revealed no sign of the mysterious Planet X hypothesized to exist in the outer solar system. But scientists are keeping up the search for a planet or dim star far from the sun".
"For more than a century, astronomers have considered the possibility that another massive body exists in the outer solar system.
"Percival Lowell coined the term "Planet X" at the turn of the 20th century to refer to an undiscovered large planet that could be responsible for perturbing the orbits of Uranus and Neptune. More recently, the idea grew to incorporate a possible dwarf-star companion to the sun, nicknamed " Nemesis."
"And a recent find may give a boost to the hunt for Planet X. On Wednesday, March 26, researchers announced they had discovered a dwarf planet orbiting the sun in a distant, largely unexplored region known as the inner Oort Cloud".
Read more: http://www.foxnews.com/science/2014/03/28/search-for-potential-planet-x-far-from-over/?intcmp=features