| 翻訳と辞書 |
| Marco Polo (spacecraft) ： ウィキペディア英語版 |
Marco Polo (spacecraft)
Marco Polo was a proposed space mission studied between 2007 and 2010.〔p (ESA - Marco Polo )〕 It was for a near Earth asteroid sample return, and was considered for the ESA Cosmic Vision programme.〔 It was rejected for fourth time in March 2015 for the "M" medium-class missions under Europe's "Cosmic Vision" programme.
==Overview==
It was a space mission aimed at visiting a small asteroid and returning a sample to Earth for analysis in laboratory. It was rejected for the program Cosmic Vision 2015-2025 of the European Space Agency (ESA) in June 2007 but selected for further assessment studies in November 2007. The in-situ investigation and sample analysis would allow to improve knowledge of the physical and chemical properties of a small Near-Earth object (NEO) which is believed to have kept the original composition of the solar nebula in which planet formed. Thus, it would provide some constraints to the models of planet formation and some information on how life may have been brought to Earth. Information on the physical structure would help defining efficient mitigation strategies against a potential threatening object.
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「Marco Polo (spacecraft)」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.
|
|