Scientists Discover An Exoplanet So Massive They're Not Even Sure It's A Planet

Kappa And b could be a super-Jupiter, or it could be a brown dwarf--the exoplanet orbiting a nearby star is so big scientists aren't quite sure what to call it. You know we’ve found something new and interesting when scientists don’t really know how to classify it. Using the Subaru Telescope an international team of astronomers has discovered a “super-Jupiter” so massive that it seems they’re not quite sure whether to call it a planet or a low-mass brown dwarf (i...