Planet Nine BREAKTHROUGH: Evidence of mystery planet bigger than Earth GROWS PLANET Nine is a hypothetical Super-Earth lurking on the outer reaches of the solar system and astronomers are now increasingly confident of discovering Planet Nine within the next decade. Share: Facebook Twitter Google+ Stumble Digg Email ThisBlogThis!Share to XShare to Facebook Related Posts:Trilobites: A Start Date for the Bison Invasion of North AmericaQ&A: How to Kill Germs in the LaundryHigh Above, Drones Keep Watchful Eyes on Wildlife in AfricaIgor Shafarevich, Russian Mathematician With a Mixed Political Legacy, Dies at 93It’s Possible to Hack a Phone With Sound Waves, Researchers ShowPoachers Beware: Drones Are Watching