PLUTO RECLASSIFIED AS A DWARF PLANET

Opposite hemispheres of Pluto are resolved in these NASA Hubble Space Telescope pictures from March 7, 1996. Scientists reclassified Pluto as a dwarf planet, leaving the solar system with just eight normal planets. (UPI Photo/A. Stern (SwRI), M. Buie (Lowell Obs.), NASA, ESA)