Space Exploration

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Across
  1. 3. NASA spacecraft exploring outer planets
  2. 5. Fifth planet from the Sun, also a rocket series
  3. 7. First US space station
  4. 10. Russian spacecraft for crewed missions
  5. 11. Astronaut activity outside the spacecraft
  6. 12. Vehicle used for space launches
  7. 13. NASA's moon landing program
  8. 14. Relating to the moon
  9. 16. Path of a celestial object around another
  10. 17. Space agency responsible for US missions
Down
  1. 1. The universe as a whole
  2. 2. Fourth planet from the Sun, a target for exploration
  3. 4. Unmanned spacecraft sent to explore planets or space
  4. 6. Device used to observe distant objects in space
  5. 7. Reusable spacecraft for carrying astronauts
  6. 8. System of stars, gas, and dust held together by gravity
  7. 9. Person trained for space travel
  8. 15. Celestial body explored by astronauts