Scientists: Solid evidence for 9th planet in solar system

CAPE CANAVERAL, Fla. (AP) — Scientists say they finally have “solid evidence” for Planet X, a true ninth planet on the fringes of our solar system.
The gas giant is thought to be almost as big as Neptune and orbiting billions of miles beyond Neptune’s path — distant enough to take 10,000 to 20,000 years to circle the sun. This Planet 9, as the two Caltech researchers call it, hasn’t been spotted yet. They base their findings on mathematical and computer modeli