uranus88Uranus also has faint rings. The inner rings are narrow and dark. The outer rings are brhtly colored and easier to see. Like Venus, Uranus rotates in the opposite direction asSnificant Events. March 13, 1781: British astronomer William Herschel discovers Uranus – the first new planet discovered since ancient times – while searching for faint stars. 1787-1851: Four Uranian moons are discovered