Happy Pluto Discovery Day!
The discovery of Pluto was announced on March 13. Pluto was labeled a planet when it was first discovered in the Percival Lowell Observatory by Clyde Tombaugh in 1930.
In 2007, the New Mexico state legislature declared March 13 Pluto Planet Day. They also declared that when Pluto is overhead through new Mexico’s night skies, Pluto will have full planetary status. New Mexico also proclaimed February 18, 2009 as “Pluto is a Planet in New Mexico Day.”