Across
- 2. Term used when an object is moving away from us
- 7. Takes high resolution images of visible light and is also named after an astronomer
- 12. How did Hubble figure out how galaxies move at the speed of there distance
- 13. Made of billions of stars and dust, held together by gravitational attraction
- 14. What has the universe been doing for 13.7 billion years
- 15. First person to describe the Big Bang Theory
- 16. Astronomers use this device to solve long and complex mathematics
- 18. Name two astronomers that discoverd cosmic background radiation
- 20. Microwaves, radio waves, and x rays are types of
Down
- 1. Allows astronomers to view and measure the wavelengths of visible light
- 3. Stars and galaxies give of what two types of electromagnetic waves
- 4. Was launched into space to collect more precise measurements on Cosmic Background Radiation
- 5. As galaxies move father apart their lights wavelength become longer
- 6. Term used for all the objects in the sky like the sun, moon and stars
- 8. He suggested that the universe is expanded in all directions
- 9. Was launched into space to help scientist map cosmic background radation
- 10. Energy that is radiated in the form of waves
- 11. Radiation left over from the Big Bang
- 17. A tiny volume of space suddenly expanded into immense size
- 19. Allows astronomers to see celestial bodies up close