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Compact Reconnaissance Imaging Spectrometer for Mars
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Compact Reconnaissance Imaging Spectrometer for Mars : ウィキペディア英語版
Compact Reconnaissance Imaging Spectrometer for Mars

The Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) is a visible-infrared spectrometer aboard the Mars Reconnaissance Orbiter searching for mineralogic indications of past and present water on Mars. The CRISM instrument team comprises scientists from over ten universities and led by principal investigator Scott Murchie. CRISM was designed, built, and tested by the Johns Hopkins University Applied Physics Laboratory.
==Objectives==
CRISM is being used to identify locations on Mars that may have hosted water, a chemical considered important in the search for past or present extraterrestrial life. In order to do this, CRISM is mapping the presence of minerals and chemicals that may indicate past interaction with water - low-temperature or hydrothermal.〔(【引用サイトリンク】title=CRISM Joins Mars' Water Detectives )〕 These materials include iron and oxides, which can be chemically altered by water, and phyllosilicates and carbonates, which form in the presence of water. All of these materials have characteristic patterns in their visible-infrared energy and are readily seen by CRISM. In addition, CRISM is monitoring ice and dust particulates in the Martian atmosphere to learn more about its climate and seasons.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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