1.) our galaxy is called the point) a.) local group b.) orion c.) andromenda d.) milky way 2.) about 60% of all known galaxies are classified as point) a.) spiral galaxies b.) elliptical galaxies c.) irregular galaxies d.) binary systems 3.) based on the observed red shifts in the spectral lines of distant galaxies, astronomers conclude that (1 point) a.) earth is in the center of the universe. b.) the universe is contracting. c.) the universe is expanding. d.) the universe is smaller than once believed.