2013.06.27 10:30
Going, Going, Still Going? Voyager 1 at Solar System’s Edge By KENNETH CHANG
Then, on Aug. 25, the solar wind dropped by a factor of more than a thousand, vanishing to imperceptible levels, and it has remained at essentially zero since. At the same time, the number of cosmic rays from outside the solar system jumped by 9.3 percent.
But the magnetic field has steadily, stubbornly pointed in the same direction, indicating that Voyager 1 is still ensconced within the Sun’s magnetic field. Scientists guess that in this region the magnetic fields of the solar system partly connect to those of the surrounding interstellar space, allowing the solar particles to escape. (Charged particles travel along magnetic field lines.) They have named the zone through which Voyager 1 is hurtling the heliosheath depletion region.
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2013.06.27 13:39
2013.06.27 14:44
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