Direct Characterization of Comets and Asteroids via Cosmic Dust Analysis from the Deep Space Gateway

Fries, M ; Fisher, K

关键词: COMETS;    ASTEROIDS;    COSMIC DUST;    DEEP SPACE;    CISLUNAR SPACE;    CHEMICAL COMPOSITION;    SPACE DEBRIS;    METEOROID SHOWERS;    SAMPLING;    IDENTIFYING;   

RP-ID  :  JSC-E-DAA-TN52405

学科分类：天文学(综合)

美国|英语

来源: NASA Technical Reports Server

【 摘 要 】

The Deep Space Gateway (DSG) may provide a platform for direct sampling of a large number of comets and asteroids, through employment of an instrument for characterizing dust from these bodies. Every year, the Earth traverses through debris streams of dust and small particles from comets and asteroids in Earth-crossing orbits, generating short-lived outbursts of meteor activity commonly known as "meteor showers" (Figure 1). The material in each debris stream originates from a distinct parent body, many of which have been identified. By sampling this material, it is possible to quantitatively analyze the composition of a dozen or more comets and asteroids (See Figure 2, following page) without leaving cislunar space.