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Voyager 2 crosses the heliopause at 119 AU

node

Six years after its twin and about 2.6 AU closer to the Sun, Voyager 2 crossed the boundary with a working plasma instrument aboard. It recorded a boundary layer roughly 1.5 AU thick in which the plasma slowed, heated and roughly doubled in density, then a transition into interstellar plasma that took less than a day. The interstellar plasma outside was measured hotter than models had predicted.

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/atlas?object=EVT_V2_HELIOPAUSE