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Phobos And Deimos & Mars Environment (PADME) is a proposed low-cost NASA Mars orbiter mission that would address longstanding unknowns about Mars' two moons Phobos and Deimos and their environment. The PADME mission is competing for Discovery Program funding.〔〔〔 The mission is led by Anthony Colaprete (Principal Investigator). Other principals include Pascal Lee (Deputy Principal Investigator) and Butler Hine (Project Manager).〔〔 If selected, PADME would launch in 2020 and reach Mars orbit in 2021 and conduct multiple flybys of its moons.〔〔〔 ==Objectives== The origin of Mars' satellites, which were discovered by astronomer Asaph Hall, remains unknown. PADME would advance the scientific understanding of the origin of Phobos and Deimos by studying:〔〔 * Composition of surface and near-surface materials * Internal structure * Dynamics (transport) of surface materials on, and between, Deimos and Phobos. In addition, PADME would assess potential resources (water, organics, regolith) and potential hazards (dust) that Phobos and Deimos might present for future human exploration in Mars orbit.〔〔〔 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「Phobos And Deimos & Mars Environment」の詳細全文を読む スポンサード リンク
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