SPACE TRAVEL

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Across
  1. 5. a luminous body visible in the sky at night
  2. 6. a vehicle used for travel in space
  3. 7. a person who travels to space
  4. 9. a celestial body moving around the sun.
  5. 10. natural object moving around an object in space.
Down
  1. 1. rock from space that travels through the atmosphere
  2. 2. a vehicle in which astronauts can live
  3. 3. a very large gruop of stars.
  4. 4. a person that studies the space
  5. 8. optical instrument to look at stars, planets...etc