Pioneers

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Across
  1. 3. Pioneer 10 was the first to fly beyond this planet's orbit
  2. 4. A gas giant first visited by Pioneer 10
  3. 6. Pioneer 11 determined the mass of this moon
  4. 8. The month that Pioneer 10 entered the Asteriod Belt
  5. 10. Launched March 2, 1972
Down
  1. 1. They managed the Pioneers
  2. 2. Each one provides 40 watts of power at launch on Pioneer 11
  3. 5. First spacecraft to fly past Saturn
  4. 7. A gas giant first visited by Pioneer 11
  5. 9. This place was to be found too cold for life