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| | Pioneer 6, 7, 8, 9, E Quicklook |
 | | Pioneers 6, 7, 8, and 9 were created to make the first detailed, comprehensive measurements of the solar wind, solar magnetic field and cosmic rays. |
 | | A fifth spacecraft, Pioneer E, was lost when it failed to orbit due to a launch vehicle failure. |
 | | The Pioneer 6-9 program has been touted as one of the least expensive of all NASA spacecraft programs in terms of scientific results per dollar spent. |
| samadhi.jpl.nasa.gov /msl/QuickLooks/pioneer6QL.html (199 words) |
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