As astronomers are looking for a hypothetical “Planet Nine” in our solar system, an exoplanet 336 light years from Earth is looking more like the Planet Nine of its star system. Planet Nine, potentially 10 times the size of Earth and orbiting far beyond Neptune in a highly eccentric orbit around the sun, was proposed in 2012 to explain perturbations ...

There is a growing evidence that our solar system has another Planet Nine or Planet X that is orbiting the Sun at a great distance. Astronomer Scott S. Sheppard of the Carnegie Institution for Science in Washington and his team explained the orbital details of the planet, which they have nicknamed Goblin, while officially it is designated in 2015 as ...