Across
- 3. Distant blue planet with extreme winds
- 6. Remote world at the edge of the Solar System
- 8. Mysterious black structure guiding human evolution
- 12. Early spacecraft that marked the space age
- 13. First animal to orbit Earth
- 14. Astronomer who linked black holes with galaxy evolution
- 15. Iconic science-fiction journey through space and time
- 16. Force that governs charged particles in space
- 18. Space physicist known for studying planetary environments
Down
- 1. Branch of science that studies the universe as a whole
- 2. Filmmaker famous for realistic space visuals
- 4. Fundamental constants that shape the universe
- 5. Extremely luminous object powered by matter falling inward
- 7. Icy moon that orbits in reverse
- 9. Fictional computer that controls a spacecraft
- 10. Massive system of stars bound by gravity
- 11. Ionized state of matter common in space
- 17. Vast region of space with very little matter