Across
- 2. when Apollo 11 lands the first people to the moon
- 6. when Einstein re- imagined gravity
- 9. when did the construction of the stone age happen
- 10. Polish astronomer
- 11. Ancient Greek philosopher
Down
- 1. when Johannes establishes the first 2 laws of planetary motion
- 3. when did Babylonian astronomers create the first star and planet records (Venus & Ammisaduqa)
- 4. Mathematician
- 5. Invented telescopes
- 6. when Nicolaus proposed the heliocentric universe
- 7. when Galileo discovered Jupiter's moons, Venus's phases, and sunspots
- 8. Built the first observatory