Space in April

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Across
  1. 4. Tiros 1 Became the First __ Satellite
  2. 5. Soviet Space Station Launched
  3. 7. First Space Shuttle Launched
  4. 9. First Space Tourist
  5. 10. The First Full Moon of April
  6. 11. Meteor Shower Prominent in April
Down
  1. 1. Second Space Shuttle
  2. 2. First man in space
  3. 3. SNAP 10A became the first __ reactor in space
  4. 6. Discovered by Christiaan Hyugens - Saturn's Moon
  5. 8. 13