Fastest Asteroid Ever Discovered In Our Solar System
2021 PH27 is just 0.62 miles (or 1 kilometer) in diameter and completes its orbit in just 113 Earth days—a shorter orbit than any other known asteroid, though longer than Mercury’s 88 day cycle. The space boulder was first discovered on August 13, while astronomers were collecting images from the Víctor M. Blanco 4-meter Telescope at Cerro Tololo Inter-American Observatory in Chile. In between studying galaxy clusters, the scientists used breaks to search for asteroids....