Space Policy Edition: Why are outer planets missions so expensive?
Planetary Radio: Space Exploration, Astronomy and Science
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The Space Weather Network, the Pioneers Six to Nine
Pioneers six to nine were really, in a sense, the first space weather network that we had. charley hall: They were kind of his training ground, in some ways, for what he later did on pioneers ten and and pioneer venus. The idea was to do something that was simple, that was very reliable, something that was not going to be overly complicated.
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