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Pluto new planet P5

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Pluto may not be a planet anymore, but it does have a new companion: scientists have discovered the icy dwarf's smallest moon yet.
Pluto new planet P5

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 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.

Mr Showalter/NASA/ESA