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This image, taken by the NASA/ESA Hubble Space Telescope, shows five moons orbiting the distant, icy dwarf planet Pluto. The green circle marks the newly discovered moon, designated S/2012 (134340) 1, or P5, as photographed by Hubble?s Wide Field Camera 3 on 7 July 2012. Other observations that collectively show the moon?s orbital motion were taken on 26, 27 and 29 June and on July 9. The moon is estimated to be 10 to 25 kilometres across. It is in a 95 000 kilometre diameter circular orbit around Pluto that is assumed to be aligned in the same plane as the other satellites in the system. The darker stripe in the centre of the image is because the picture is constructed from a long exposure designed to capture the comparatively faint satellites of Nix, Hydra, P4 and S/2012 (134340) 1, and a shorter exposure to capture Pluto and Charon, which are much brighter. AFP PHOTO / NASA / ESA
NASA, ESA, and M. Showalter (Photo credit should read Mr Showalter/AFP/GettyImages)
