Astronomy Crossword

3. started the SETI program and created the original TV series Cosmos in the 1980s
5. discovered the orbit of a comet that could be seen from earth every 76 years
6. created the first astronomical catalog in 1771 that contained 110 objects
7. Greek philosopher that created the first model that put the Earth at the center
12. Greek astronomer that used the sun to measure the size of the round Earth
13. modern physicist who studies quantum mechanics and wrote the book A Brief History of Time
15. discovered infrared radiation and the planet Uranus
17. woman who discovered pulsars which emit a bean of electromagnetic radiation
18. discovered the largest asteroid Ceres
21. made discoveries of galaxies including Andromeda Nebula and has a telescope named after him
23. discovered a belt of comets at the edge of Pluto’s orbit named after him
24. discovered a huge spherical cloud of icy comets named after him

1. pioneer of radio astronomy and was first to discover radio waves emitting from space
2. woman who discovered that a star know as a Cepheid could be used as a marker for distance
4. Greek astronomer that made the first catalogue of the stars, mapping over 850 stars
8. discovered Pluto in the 1930s
9. along with Ejnar Hertzsprung, invented a diagram to classify stars
10. discovered the four main moons of Jupiter and helped invent the first telescope
11. discovered 4 moons of Saturn: Lapetus, Dione, Rhea and Tethys
14. German scientist who was the first astronomer to discover Neptune
16. Belgian Catholic priest who is credited with developing the Big Bang Theory
19. discovered the theory of supernova and dark matter
20. Danish astronomer who used mathematical equations to figure out the distance to the planets
22. discovered Trans-Neptunian Objects (TNOs) also known as dwarf planets