"Unveiling the Colossal Giant: The Largest Planet Ever Discovered"

The largest known planet depends on various factors, including how one defines a planet. One candidate is ROXs 42Bb, a gas giant about nine times the mass of Jupiter and with a radius 2.5 times that of Jupiter. However, there are other objects, including protoplanets, that may be larger. The uncertainty arises from different measurement methods and the challenge of distinguishing between planets and brown dwarfs. The formation process of an object is not currently part of the formal definition of a planet. The debate over what constitutes a planet highlights the diversity of planetary systems and the many possible outcomes.