"The Hunt for the Solar System's Missing Planet"

A recent study in The Astronomical Journal aims to narrow down the potential location of the elusive Planet Nine, a hypothetical planet in the outer solar system. Using data from Pan-STARRS, researchers eliminated 78% of possible locations calculated from past studies and provided new estimates for its approximate size. While the study did not find Planet Nine, it significantly narrowed the search area, with follow-up studies planned using the LSST at the Vera C. Rubin Observatory in Chile. Discovering Planet Nine would provide valuable insights into the solar system's formation and evolution.