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Distant galaxies are more likely to be irregular in shape than galaxies closer to the Milky Way.
Q24: Which of the following best summarizes what
Q26: All heavy elements are made during supernova
Q33: What kinds of objects lie in the
Q45: What evidence supports the existence of a
Q51: How many helium nuclei fuse together when
Q52: Suppose that the star Betelgeuse (the upper
Q59: Based on our current understanding of physics,
Q85: How does the age of the universe
Q88: What do we mean when we say
Q103: Order these objects by size (radius) from