A True Story About Planet Pluto: | Passport to Pluto and Beyond
Dwarf planet Pluto reacts to discovery of 'Planet Nine'
The Year of Pluto - New Horizons Documentary Brings Humanity Closer to the Edge of the Solar System
Reflections on Clyde Tombaugh
American astronomer Clyde Tombaugh spotted a moving point when comparing two photographic plates taken six days apart the previous month. He realized that it is probably the Planet X that astronomers were searched for nearly 30 years. Later it was named Pluto, after an ancient god of the underworld.
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