SPACE VOCABULARY

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Across
  1. 1. a person who has been trained for travelling in space
  2. 3. object that moves very fast, used for space travel
  3. 6. the force that keeps us on the planet
  4. 8. someone who studies starts
  5. 9. a piece of rock or other matter from space that produces a bright light as it travels through the atmosphere
  6. 10. a vehicle in which people travel into space and back again
Down
  1. 2. a building from which scientists can watch the planets, the stars, the weather, etc.
  2. 4. the fifth planet from the Sun and the largest in the Solar System
  3. 5. any of the systems of stars and interstellar matter that make up the universe
  4. 7. a group of stars in the sky that appear to form a pattern and that have a name
  5. 11. an astronaut (= a person who travels into space) from Russia