Across
- 2. a less massive object that orbits a planet
- 5. The final stage of a large star; has intense gravity
- 6. 90% of all stars
- 10. a human that goes out into space
- 11. The final stage of a small/medium star
- 13. A big star turns into this when it runs low on hydrogen
- 14. Planets + Star = ?
- 16. A giant rock that orbits a star
Down
- 1. an area in a solar system that is suitable for life
- 3. A ‘neighborhood’ of Galaxies
- 4. Shapes in the sky
- 7. This is constantly expanding
- 8. Stars, Stars, and more Stars
- 9. Big ball of burning gas
- 12. Theory that the universe was created by an explosion
- 15. the planet most people live on