Interplanetary medium

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  • Interplanetary Medium
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Abstract from DBPedia
    The interplanetary medium (IPM) or interplanetary space consists of the mass and energy which fills the Solar System, and through which all the larger Solar System bodies, such as planets, dwarf planets, asteroids, and comets, move. The IPM stops at the heliopause, outside of which the interstellar medium begins. Before 1950, interplanetary space was widely considered to either be an empty vacuum, or consisting of "aether".

    惑星間物質（わくせいかんぶっしつ、Interplanetary medium）は、太陽系を満たしている物質であり、惑星、小惑星、彗星等の大きな太陽系の天体はこの中を動いている。

    (Source: http://dbpedia.org/resource/Interplanetary_medium)