Space Words

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Across
  1. 5. A person who is trained to travel in a spacecraft
  2. 8. a small body of matter from outer space that enters the Earth's atmosphere
  3. 9. The closest galaxy to the Milky Way
  4. 10. the force that attracts a body toward the center of the earth, or toward any other physical body having mass
  5. 11. The star at the center of Earth's solar system
  6. 13. A person who studies outer space
Down
  1. 1. The physical universe beyond the earth's atmosphere
  2. 2. A massive ball of burning gas in space
  3. 3. A system of millions or billions of stars
  4. 4. A small rocky body orbiting the sun
  5. 6. A large body orbiting a star
  6. 7. The curved path of a celestial object or spacecraft around a star, planet, or moon
  7. 8. A natural satellite orbiting a planet
  8. 11. A celestial body orbiting the earth or another planet
  9. 12. Space entirely devoid of matter