Rside-10.1-Alexa

1. classified as a celestial body, obtaining radio waves, light waves and also radiate x-Rays
3. Who the first astronomer to identify other galaxies besides the Milky Way?
4. A term in which is used to identify objects in space
6. The theory that the universe was formed in a single explosion which formed all the galaxies
7. an idea used to account for a situation or justify a course of action
8. a field of radioactive element
10. An invention that helped astronomers theory's
13. stands for "national aeronautics and space administration"
14. stands for "Cosmic backgrounds explorer"
15. a optical instrument that acts like a prism to separate light into its basic component colours.
16. the distance between every wave
17. As _____ expands, so do the waves of radiation as they travel from the distant galaxies.

2. what is the term used for when describing how far away an object is in space?
3. energy that is carried, or radiated, in the form of waves.
5. a pattern of colours is called?
9. the Galaxy we live in
11. a cluster of stars and planets
12. Arno penzias was a ______ who
16. a spacecraft which measures the difference in temperatures of the cosmic microwaves background