Across
- 4. Another name for a shooting star
- 7. The closest star to Earth
- 8. A luminous ball of plasma
- 10. The tool we use to look at the stars
- 12. Someone who travels to outer space
- 15. The force that pulls objects together
Down
- 1. A vehicle made for space travel
- 2. The largest planet in our solar system
- 3. The planet named after the goddess of love
- 4. The earth's natural satellite
- 5. A group of stars that form a picture in the sky
- 6. America's government space program
- 9. The study of the stars
- 11. The first artificial satellite
- 13. The name of the planet we live on
- 14. The name of our galaxy