Far beyond Neptune, astronomers have found puzzling clues, icy worlds moving in strange orbits that don’t fit the known Solar System. Some believe the explanation is a hidden planet, nicknamed Planet Y. This world could be several times larger than Earth, orbiting so far out that it takes tens of thousands of years to complete one trip around the Sun. If it exists, Planet Y would be one of the most important discoveries in modern astronomy, proof that our Solar System still hides massive secrets. #planety #not #planet9 #solarsystem