Across
- 2. our nearest galaxy
- 3. the planet with rings visible to the naked eye
- 5. a region of space made of gas and dust that serves as a nursery for stars
- 12. first US citizen in space
- 14. when one celestial body moves in front of another celestial body to cast a shadow onto a planet
- 17. the brightest star seen from the Southern Hemisphere
- 18. what happens when a star explodes
Down
- 1. the first rover to land on Mars
- 4. where light cannot escape
- 6. Jupiter's largest moon
- 7. one of Mars' moons; it means "panic" in Ancient Greek
- 8. the Seven Sisters
- 9. first dog in space
- 10. the brightest star seen from the Northern Hemisphere
- 11. the Swan
- 13. this is currently the largest telescope in space
- 15. the Hunter
- 16. this planet was excommunicated