Universe

1. electromagnetic radiation filling the universe that is a residual effect of the big bang 13.8 billion years ago.
4. force that attracts a body toward the center of the earth
5. the displacement of spectral lines toward longer wavelengths
9. push and pull
10. astronomical body that is neither a star nor a stellar remnant.
11. conventional or stylized representation of a star, typically one having five or more points.
12. the birth of the universe
15. a very large star that is even brighter than a giant
16. a very large star of high luminosity and low surface temperature

2. a spectrum of electromagnetic radiation transmitted through a substance, showing dark lines or bands due to absorption of specific wavelengths.
3. the displacement of the spectrum to shorter wavelengths in the light coming from distant celestial objects moving toward the observer.
6. waves that travel near the earth's surface. P and S waves are body waves.
7. is the process by which two light atomic nuclei combine to form a single heavier one while releasing massive amounts of energy.
8. an increase in the frequency of sound,light,or other waves
13. a system of millions or billions of stars, together with gas and dust, held together by gravitational attraction.
14. a star that suddenly increases greatly in brightness because of a catastrophic explosion that ejects most of its mass.