The Phantom Planet

The Phantom Planet is a hypothetical celestial body theorized to exist beyond our solar system, potentially influencing gravitationally or through other effects, despite not being directly observed. Some theories suggest it could be a dark matter object, a hidden planet, or a structure affecting the orbits of known planets and space debris. While it remains speculative, the idea arises from anomalies in celestial movements that current models can't fully explain. Its existence would have significant implications for our understanding of the universe’s structure and the distribution of unseen mass.