Astronomers working with the Atacama Large Millimeter/submillimeter Array (ALMA) have discovered what they claim could be another large planet on the fringes of our solar system.
While examining the Alpha Centauri star system, the nearest to Earth, they noticed a fast-moving object crossing their field of view.
Its speed and brightness allowed them to rule out another star as the culprit, and based on wavelength readings obtained from ALMA, they believe it could be a Trans-Neptunian Ob
Source: Discover Magazine