Don't give up on Planet Nine yet: Hubble 'scope finds just such a world a mere 336 light-years away
Massive planets at far out distances from their stars are possible after all
The Hubble Space Telescope has spied a previously unknown exoplanet with similar properties as our Solar System's hypothetical object Planet Nine. This newly spotted body is living on the outskirts of another solar system 336 light-years away....