It has been recommended by simulations that there may perhaps be an Earth-sized planet lurking at the edge of the solar program. This planet, if it exists, would be positioned beyond the identified planets and would have a comparable size to Earth. The discovery of such a planet would have important implications for our understanding of the solar program and its formation. If this planet does exist, it would challenge present theories and models of the solar program, as properly as raise concerns about how it formed and why it is positioned in such a distant area of the solar program. Additional study and observational information are required to confirm the existence of this prospective planet and improved have an understanding of its properties.