Across
- 2. the brightest star seen from the Northern Hemisphere
- 6. an anomaly in which no light can escape due to immense gravity pressure
- 8. the planet with rings visible to the naked eye
- 11. first US citizen in space
- 15. the Hunter
- 16. when one celestial body moves in front of another to cast a shadow onto a planet
- 17. this constellation's name means The Swan
- 18. a region of space made of gas and dust that serves as a nursery for stars
Down
- 1. one of Mars' moons, it means "panic" in Ancient Greek
- 3. the first rover to land on Mars
- 4. first dog in space
- 5. currently the largest man-made telescope in space
- 7. this planet was excommunicated
- 9. Jupiter's largest moon
- 10. the brightest star seen from the Southern Hemisphere
- 12. our nearesr galaxy
- 13. when a large star explodes
- 14. the Seven Sisters