翻訳と辞書 Words near each other ・ Explosia a.s. ・ Explosimeter ・ Explosion ・ Explosion (1973 film) ・ Explosion (disambiguation) ・ Explosion crater ・ Explosion in a Cathedral ・ Explosion in Bergen 1944 ・ Explosion of a Motor Car ・ Explosion of the RFA Bedenham ・ Explosion of the Steamship "Dalstroy" ・ Explosion protection ・ Explosion vent ・ Exploration of Neptune ・ Exploration of North America ・ Exploration of Pluto ・ Exploration of Saturn ・ Exploration of the Americas ・ Exploration of the High Alps ・ Exploration of the Moon ・ Exploration of the Pacific ・ Exploration of the Valley of the Amazon ・ Exploration of the Valley of the Kings ・ Exploration of Uranus ・ Exploration Park ・ Exploration Place ・ Exploration problem ・ Exploration Systems Architecture Study ・ Exploration Team ・ Exploration Upper Stage Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Exploration of Pluto ： ウィキペディア英語版 Exploration of Pluto The exploration of Pluto began with the arrival of the ''New Horizons'' probe in July 2015, though plans for such a mission had been in place for many decades. There are no plans as yet for a follow-up mission. == Early mission proposals == Exploring Pluto was contemplated since its discovery by Clyde Tombaugh in 1930, but Pluto presents significant challenges for exploration because of its small mass and great distance from Earth. One of many possibilities for the ''Voyager 1'' spacecraft after its flyby of Saturn in 1980 was to use Saturn as a slingshot towards Pluto for a flyby as early as March 1986. However, scientists on the ''Voyager'' program decided that a flyby of Titan during the Saturn encounter would be a more important scientific objective. A flyby of Pluto was impossible, as not only did the spacecraft make a close approach of Titan, it was also on a trajectory that slingshot the spacecraft upwards out of the ecliptic.〔 ''"Voyager 1 could have been aimed on to Pluto, but exploration of Titan and the rings of Saturn was a primary scientific objective. This caused the trajectory to be diverted upward out of the ecliptic plane such that no further planetary encounters were possible for Voyager 1."''〕 Because no mission to Pluto was planned by any space agency at the time, it would be left unexplored by interplanetary spacecraft for years to come. Shortly after ''Voyager 2''s flyby of Neptune and its findings at Triton in August 1989, scientists sought interest in a mission to Pluto and further studies for the existence of a Kuiper belt and Kuiper belt objects, potentially similar to Triton.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Exploration of Pluto」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.