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Nature 454, 38-39 (3 July 2008) | doi:10.1038/454038a; Published online 2 July 2008

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Solar System: A shock for Voyager 2

J. R. Jokipii1

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The Voyager 2 spacecraft has now followed Voyager 1 into the region beyond the end of the supersonic solar wind, where the influence of interstellar space is growing — so opening a new age of exploration.

Five papers1, 2, 3, 4, 5 in this issue, beginning on page 63, celebrate and record a notable event in the storied history of the Voyager space programme. Thirty years after its launch on 20 August 1977, Voyager 2 arrived at the 'heliospheric termination shock', adding important new data about this turbulent boundary in the outer Solar System to those collected by Voyager 1 four years ago6, 7, 8.

  1. J. R. Jokipii is in the Department of Planetary Sciences, University of Arizona, Tucson, Arizona 85721, USA.
    Email: jokipii@lpl.arizona.edu

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