Across
- 2. a very large cloud of dust and gas in outer space.
- 7. One who studies stars and planets.
- 9. a bright object in space having a tail of dust/gas.
- 11. an extremely large group of stars and planets.
- 12. A celestial body moving around the earth.
Down
- 1. A creature from another planet.
- 3. All existing things in the space.
- 4. a large piece of rock from space that appear as a bright light.
- 5. a mass of rock that moves around in space.
- 6. A group of bright stars with a definite shape.
- 8. a natural object that moves around a planet.
- 10. a very small star that does not shine brightly.