2005年10月31日,据哈勃太空望远镜建议的新图像显示,冥

2005年10月31日,据哈勃太空望远镜建议的新图像显示,冥王星有三颗卫星,而不是一颗。 这两个新月分别命名为Nix和Hydra。 冥王星在1930年被发现为第九颗行星,直到1978年它的月亮Charon被发现之前一直被认为是孤独的。2011年和2012年又发现了另外两个卫星。
原文:2005 Oct 31, It was reported that Pluto has three moons, not one, according to new images from the Hubble Space Telescope suggest. The two new moons were named Nix and Hydra. Pluto, discovered as the ninth planet in 1930, was thought to be alone until its moon Charon was spotted in 1978. Two more moons were discovered in 2011 and 2012.