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( v' v9 `2 C! s" qCOVER Rendering of the Voyager 1 spacecraft that left Earth in
4 X% Q& U B$ o4 DSeptember 1977. Last summer, when it was 18.5 billion kilometers away and still / [) B2 B) i9 D3 [
embedded in the solar magnetic field, Voyager 1 entered an unexpected region,
+ F/ Q/ ]+ ^0 D: i! a% P9 {2 Twhere it observed a sharp decrease of charged particles from the Sun and an
& T; a/ ` A& D, d3 F* ^: p& jabrupt increase in particles from interstellar space. See pages 144, 147, and 150. Image: NASA 2 Q# k0 J6 H$ l+ M8 q# e
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发表于 2013-7-12 12:58
发表于 2013-7-12 13:38
