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High mass stars provide most of the mass and most of the light in galaxies.
Q17: What are thought to be some possible
Q25: In an H-R Diagram, the path showing
Q31: The Kepler mission uses the _ technique
Q40: Triton and Pluto both probably originated in
Q47: What direct evidence do astronomers have that
Q49: Prominences hanging off the limb of the
Q57: Which of the following objects would be
Q61: How is the age of a star
Q70: Novae are more closely related to Type
Q72: Describe in detail the observational properties of