[zipwitch]

As the wikipedia article states, the WISE survey[1] results would have turned up Nemesis or anything like it, and did not. Currently most likely theory for the improbable distribution of objects beyond the Kuiper Cliff is Planet Nine.[2]

[1]https://en.wikipedia.org/wiki/Wide-field_Infrared_Survey_Exp... [2]https://en.wikipedia.org/wiki/Planet_Nine