Part II

Taproots

3. Prophets and Pioneers of Spaceflight
4. The Rocket and Satellite Research Panel: The First Space Scientists
   
   • The V-2 Panel
   • The Need to Replace the V-2
   • Scope of Panel Activity
   • International Contacts
   • The IGY Satellite Program
5. The Academy of Sciences Stakes a Claim
6. Early Harvest: the Upper Atmosphere and Cosmic Rays
   
   • The Threshold to Space
   • Problems to Solve
   • The Harvest
   • Significance