The solar system may have a ninth planet after all. This one is 5,000 times bigger than outcast Pluto and billions of miles farther away, say scientists who presented “good evidence” for a long-hypothesized Planet X on Wednesday. The gas giant is thought to be almost as big as its nearest planetary neighbor Neptune, quite possibly with rings and moons. It’s so distant that it would take a mind-blowing 10,000 to 20,000 years to circle the sun.

Planet 9, as the pair of California Institute of Technology researchers calls it, hasn’t been spotted yet. They base their prediction on mathematical and computer modeling, and anticipate its discovery via telescope within five years or less. The two reported their research Wednesday in the Astronomical Journal because they want people to help them look for it. FULL REPORT