PHILADELPHIA (CBS) — The search is continuing for a planet that astronomers view as the potential ninth planet. 60 Minutes shed light on the search as experts say the potential planet is no small matter. In fact, some estimate that it could be 10-20 times more massive than Earth. Study: Exercising Just 1-2 Days A…
via Experts Say ‘Planet Nine’ Could Be Up To 20 Times Bigger Than Earth — CBS Philly
