Space CLub

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Across
  1. 4. the line that appears to join the sky and the earth
  2. 5. Name of first artificial satellite
  3. 8. what is the visible layer of sun called?
  4. 11. most luminous objects in the known universe
  5. 12. Hottest planet in the solar system
  6. 13. A region in the space where the gravity does not allow anything to escape
  7. 14. what is the code name of the first vehicle driven by the man on the moons surface
Down
  1. 1. piece of debries that survivies passage through the earths atmosphere
  2. 2. Artificial satellites orbit the earth here.who am I?
  3. 3. Country that launched first man in space
  4. 5. A star's explosive finale
  5. 6. farthest artificial satellite from earth
  6. 7. What nuclear reaction takes place on sun?
  7. 9. I am bigger than Venus but smaller than Uranus. I am a living rock. What am I??
  8. 10. One name for a collection of a million stars