The Big Bang

3. The narrow range of electromagnetic radiation that the human eye can see.
5. A special camera that creates a rainbow fingerprint of an object.
8. An American physicist who accidentally discovered evidence that proved how the universe began.
9. The simplest, highest, and most common chemical element in the entire universe.
11. A German-born theoretical physicist.
12. Explained how stars create the elements needed for life.
13. A very light, invisible, and odorless gas.
14. The entire range of light energy, both visible and invisible.
16. A American astronomer who accidentally discovered evidence for the Big Bang.
17. When light from an object appears shifted toward the blue end of the light spectrum.

1. Everything in that exists.
2. It's the oldest light in the universe.
4. The scientific study of everything in the universe.
6. A massive, gravity-bound in space that contains millions or billions of stars, gas, dust, and dark matter.
7. A rapid expansion of space itself that has continued of stretch and cool over billions of years.
10. The stretching of light waves from an object as it moves away.
14. American astronomer who proved that the universe is much bigger than just the Milky Way.
15. The ability to do work