heliopause

基本解释

The heliopause was expected to be a rather sharp boundary between the sun's domain and interstellar space.
太陽風頂層曾被認爲是処在太陽系區域和星際宇宙之間一層電磁波動極其強烈的區域。
Or it could mean that Voyager 1 has already crossed the heliopause. Either way, the spacecraft becomes the first object in interstellar space created by intelligent life. That we know about.
無論哪種方式，在我們的認知範圍內，航海家1號已經成爲了有史以來第一個由智慧生物創造的離開太陽系進入系外空間的地球物躰。
Beyond the orbit of Neptune one finds the disk-shaped Kuiper belt, in which dwarf planet Pluto resides, and far beyond that is the giant, spherical Oort Cloud and the teardrop-shaped heliopause.
在海王星之外還有人發現了磐狀的柯伊伯帶，矮行星冥王星就位於這裡。在更遠的地方是巨大球狀的奧爾特雲（彗星倉庫）和水滴狀的太陽風頂層（太陽風在此遭遇星際物質）。

Eventually, after a decade or so, it should cross the heliopause and venture into interstellar space.
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In contrast, Voyager 1, the most distant spacecraft from earth, will not reach the heliopause until 2019—42 years after its launch.
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But Dr Winglee estimates that as little as 40kg of gas would be enough to accelerate the craft on its way to the heliopause, where it would arrive about ten years after launch.
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the boundary between the region of space dominated by the solar wind and the interstellar medium