Multiple Choice
According to the Cosmological Principle, the universe
A) has no beginning and no end
B) cannot be understood by the use of scientific observations alone
C) is isotropic and homogeneous
D) consists only of galaxies that are exactly like the Milky Way
E) has all the galaxies arranged in groups about the size of our Local Group
Correct Answer:
Verified
Correct Answer:
Verified
Q3: By examining rich clusters of galaxies, such
Q4: The "great voids" that astronomers studying galaxies
Q5: If you wanted to write a complete
Q6: Astronomers believe that the large elliptical galaxies
Q7: With enormous effort, a team of astronomers
Q9: Some astronomers searching for what the mysterious
Q10: When astronomers have examined rich clusters of
Q11: How do astronomers currently think the amount
Q12: Why do galaxies collide, while stars almost
Q13: According to our modern "bottom-up" model of