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