Solar System and Space Exploration

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Across
  1. 3. Natural or artificial body in orbit
  2. 5. Streak of light from meteoroid as it enters Earth's atmosphere
  3. 6. Instrument used for viewing distant objects
  4. 8. A person training to be part of a space crew
  5. 10. First name of the first man on the moon
  6. 11. A meteoroid that hits Earth's surface
  7. 13. All planets orbit the ________
  8. 14. First animal in space
  9. 17. First American woman in space
  10. 18. American agency dedicated to space exploration
Down
  1. 1. Rocky or metallic objects in space
  2. 2. Another word for revolution
  3. 3. The name of the competition between US & Russia
  4. 4. Gravity pulls objects towards the _____ of Earth.
  5. 5. 4th planet from the Sun
  6. 7. Located between Mars and Jupiter
  7. 9. Small objects mostly made of ice
  8. 12. Larget planet in our solar system
  9. 15. Pluto is classified as a ________ planet
  10. 16. The name of our galaxy