Across
- 2. - Spiral galaxy containing our solar system (8 letters, eight)
- 3. - Theater for viewing images of celestial bodies (11 letters, eleven)
- 4. - Force that attracts objects toward each other (7 letters, seven)
- 6. - Occurrence when one celestial body blocks another (7 letters, seven)
- 7. - Relating to the universe (6 letters, six)
- 11. - Relating to the moon (5 letters, five)
- 12. - Astronaut activity outside a spacecraft (9 letters, nine)
- 14. - Relating to a galaxy (8 letters, eight)
- 15. - Luminous phenomenon in the Earth's atmosphere (6 letters, six)
Down
- 1. - Russian astronaut (9 letters, nine)
- 5. - Occurring or situated between stars (12 letters, twelve)
- 8. - Protective garment worn by astronauts (9 letters, nine)
- 9. - Region of spacetime with gravitational pull (9 letters, nine)
- 10. - Relating to the sun (5 letters, five)
- 13. - Vehicle designed for travel or operation in outer space (10 letters, ten)