Across
- 2. System in which planets revolved around the Sun, while the Sun revolved around the Earth
- 6. French philosopher and mathematician
- 9. system in which the Sun is at the center of the universe, with all the planets and stars revolving around it in circular orbits
- 10. Flemish anatomist and surgeon
Down
- 1. Developed the heliocentric system
- 3. Heliocentric theory the Sun is at the center of the universe, with all the planetsand stars revolving around it
- 4. Italian astronomer and physicist
- 5. Danish astronomer
- 7. English philosopher and mathematician
- 8. English statesman and writer