New research shows: “Planet 9’ remains a mystery.. As of: February 21, 2024, 12:15 p.m By: Tanja Banner CommentsPressSplit So far no one has seen the alleged “ Planet 9” (Artist's impression) © Caltech/R.
Hurt (IPAC) The existence of ‘Planet 9' could explain many phenomena in the outer solar system. Despite an intensive search, the mysterious planet remains hidden. Michael E. Brown from the California Institute of Technology and his colleagues were able to rule out almost 80 percent of the possible locations.