Physics’ Harsh Mathur explains his recent research concerning ninth planet

Could Planet 9 actually just be controversial physics?
Popular MechanicsHarsh Mathur, professor of physics at the College of Arts and Sciences, explained he and his research partner’s recent study suggesting that, instead of a possible ninth planet in our solar system, an additional gravitational pull experienced from distant stars might explain the gravitational behavior of the so-called “Kuiper belt.”