SPACE

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Across
  1. 4. The blocking of light from one celestial body by another.
  2. 5. A Russian astronaut.
  3. 7. A small body of matter from space that enters Earth's atmosphere and burns up.\
  4. 8. Related to the moon.
  5. 9. A natural or artificial object that moves around a planet.
  6. 14. hole     A region of space with a gravitational pull so strong that nothing can escape.\
  7. 16. Related to stars.
  8. 18. Between the stars.
  9. 19. The universe seen as a well-ordered whole.\
  10. 20. A protective suit worn by astronauts in space.
Down
  1. 1. A group of stars forming a recognizable pattern.
  2. 2. A cloud of gas and dust in space where stars may form.
  3. 3. The scientific study of stars, planets, and space.
  4. 6. The curved path of a celestial object around a star or planet.
  5. 10. A person trained to travel and work in space.
  6. 11. The distance light travels in one year.
  7. 12. A massive system of stars, gas, and dust held together by gravity.
  8. 13. The force that attracts objects toward the center of a planet.
  9. 15. A celestial object with a tail of gas and dust that orbits the sun.
  10. 17. An instrument used to observe distant objects in space.