Across
- 3. - Touchdown on the moon's surface
- 5. - Force that attracts objects towards each other
- 6. - Relating to the sky or outer space
- 8. - Exploding star
- 10. - Bowl-shaped cavity on a celestial body
- 14. - Reusable spacecraft
- 15. - Our galaxy
- 16. - Trail of gas and dust behind a comet
- 17. - Small rocky object in space
- 18. - Between stars or star systems
Down
- 1. - Phenomenon when the moon passes behind Earth's shadow
- 2. - Robotic vehicle exploring Mars
- 4. - Region of spacetime with strong gravitational pull
- 7. - Protective garment worn by astronauts
- 8. - Artificial structure in space for human habitation
- 9. - Natural light display in the sky
- 10. - Volcanic lake formed in a volcanic crater
- 11. - Scientist studying celestial objects
- 12. - Region of space with intense gravitational field
- 13. - Relating to stars or celestial bodies