The moons were discovered in images taken by the Hubble Space Telescope in 2011 and 2012. Tradition dictates that Pluto's moons be named after Grrek and Roman mythological characters connected to Hades and the underworld. Choices include notable pair Orpheus and Eurydice, as well as Hercules, Hypnos, Cerberus and Styx.
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North Korea sends threat -- by fax -- to South Korea
Nativity scenes to be moved at Guantanamo after troops' protest