Space Policy Edition: Pathfinder and the Birth of the Discovery Program
Planetary Radio: Space Exploration, Astronomy and Science
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The Discovery Program - The Discovery Model
The idea was that discovery would be a line, there 'd always be a line in the budget. The first two missions were assigned, so effectively, they were not actually the discovery model for space exploration. So if discovery could do that, then you wouldn't have to worry about getting over the political hump every other year for a new appropriation. I think you see a lot of other initial success in the nineties of not discovery class missions, but low cost missions. O global surveyor class missions succeed initially. But then the continue messenger deep impact on grayl insight, lucy and and psyche.
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