Which of the following statements about galaxies is true?
A) Small galaxies outnumber large galaxies and produce most of the light in the universe.
B) Small galaxies outnumber large galaxies but large galaxies produce most of the light in the universe.
C) There is an approximately equal number of small and large galaxies in the universe and together they each contribute an equal amount of light.
D) Most galaxies in the universe are about the same size as the Milky Way.
E) Galaxies come in a wide variety of shapes and sizes but are all very blue in color.
Question 2
Most of the new star formation in the Galaxy is found in the
A) halo.
B) spiral arms.
C) bulge.
D) Galactic center.
E) globular clusters.
Apparent and True Orbits of Alpha Centauri.
Spiral Galaxies (Nearly Face-on Views)
Five Galaxies and Their Spectra
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