Artist’s depiction of a possible Planet Nine
Mark Garlick/Science Photo Library/Alamy
If Planet Nine exists within our solar system, it is a world that has faced turmoil from its larger siblings, cast into the far reaches of the universe, yet preserved from obscurity by the passing stars.
Planet Nine is theorized to be 5 to 10 times the mass of Earth, orbiting in the outer solar system at a distance of approximately 400 to 800 times that of Earth’s distance from the Sun. The strongest evidence supporting its existence lies in the observed clustering of objects located far from the Sun…
Source: www.newscientist.com