Across
- 3. Closest planet to the sun
- 5. Planet on its side
- 8. Cells with nuclei
- 10. Theory of the beginning of the universe
- 11. Hottest planet
- 12. Most recent extinction event, extinction of the dinosaurs
Down
- 1. Cells without Nuclei, first cells
- 2. Final stage of extinction
- 3. Planet that will be conquered by 2024, according to SpaceX
- 4. Largest planet
- 6. farthest planet from the sun
- 7. Planet with rings
- 9. Biologist who created the theory of evolution with help from Galapagos Birds