The Doppler. Effect indicates that the universe is expanding because
A light. From. Other galaxies is different colors
B light. From. Other galaxies is blue. Shifted
C light. From other galaxies is red. Shifted
D lights from other galaxies. Is the same color
A light. From. Other galaxies is different colors
B light. From. Other galaxies is blue. Shifted
C light. From other galaxies is red. Shifted
D lights from other galaxies. Is the same color