Space Puzzle

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Across
  1. 2. first person to walk on moon
  2. 5. Space agency for Russia
  3. 9. Small rocky object orbiting the sun
  4. 11. First woman in space
  5. 12. Instrument to measure distance to stars
  6. 13. Orbits the Earth
Down
  1. 1. Weightless environment
  2. 3. Fuel used by rockets
  3. 4. international Space Station (abbr.)
  4. 6. Reusable spacecraft
  5. 7. Landing module used in Apollo missions (7)
  6. 8. Protective suit worn by astronauts (8)
  7. 10. Vehicle that takes astronauts to space (9)