Across
- 3. Red planet
- 4. Extraterrestrial being
- 7. Space explorer
- 8. Planet closest to the sun
- 10. Observation device
- 11. Ringed planet
- 14. Sun or moon hiding
- 15. Path of a celestial object
Down
- 1. Giant gas planet
- 2. Vast system of stars
- 5. Interstellar cloud
- 6. Icy celestial body
- 9. Force pulling objects
- 12. Space rock
- 13. Spacecraft for launching