Across
- 3. discovered Pluto and the Kuiper belt in the 1930s
- 6. woman who discovered pulsars which emit a bean of electromagnetic radiation
- 7. Revised the geocentric model of the universe to include epicycles
- 10. created the first astronomical catalog in 1771 that contained 110 objects
- 12. discovered 4 moons of Saturn: Lapetus, Dione, Rhea and Tethys
- 14. Greek astronomer that used the sun to measure the size of the round Earth
- 15. discovered the theory of supernova and dark matter
- 19. Belgian Catholic priest who is credited with developing the Big Bang Theory
- 20. Danish astronomer who used mathematical equations to figure out the distance to the planets
- 21. modern physicist who studies quantum mechanics and wrote the book A Brief History of Time
- 22. discovered a huge spherical cloud of icy comets named after him
- 23. discovered the orbit of a comet that could be seen from earth every 76 years
Down
- 1. made discoveries of galaxies including Andromeda Nebula and has a telescope named after him
- 2. proposed the first model of the universe that put the sun at the center
- 4. Greek astronomer that made the first catalogue of the stars, mapping over 850 stars
- 5. discovered infrared radiation and the planet Uranus
- 8. provided an explanation for Saturn’s rings and discovered its moon, Titan
- 9. Greek philosopher that created the first model that put the Earth at the center
- 11. discovered the largest asteroid Ceres
- 13. started the SETI program and created the original TV series Cosmos in the 1980s
- 16. Tycho Brahe’s assistant and calculated three laws of planetary motion
- 17. discovered the four main moons of Jupiter and helped invent the first telescope
- 18. famous for his worm on forces, specifically gravity
- 20. discovered Trans-Neptunian Objects (TNOs) also known as dwarf planets