| A | B |
| spectroscope | a instument that breks up light from a distent star into its charcteristic |
| spectrum | a band off coler formed wen visible light passes thru a prisum |
| red shift | a shift tord the red end of the sectrum of a star that is moving away from the erath |
| blue shift | a shift tord the blue end of the sectrum of a star that is moving away from the erath tords the earth |
| doppler effect | apparnt change in wave leght of light wen is moving towrds and away from you |
| big bang theory | stats that universe began to expand with an explshin of a single point of energy and mass |
| gravity | a force of attraction between odject |
| quasars | quasey stellar radio sorce |