The International Astronomical Union may have demoted Pluto from its full-fledged status as a planet last year, designating it a "dwarf planet," but the state House of Representatives this week passed a joint memorial restoring Pluto to its full planetary glory whenever it passes over New Mexico, the Las Cruces Sun-News reported. Clyde Tombaugh, who helped create New Mexico State University's astronomy department and spent much of his life in Las Cruces, discovered photographic evidence of Pluto on Feb. 18, 1930, at the Lowell Observatory in Flagstaff, Ariz. Tombaugh's 94-year-old widow, Patsy Tombaugh, and his daughter, Annette Tombaugh-Sitze, who both...