After several decades of observation, astronomers have concluded that quasars are
A) very powerful and compact sources of energy at the centers of distant galaxies
B) projectiles shot out of our own Galaxy and moving out into intergalactic space
C) energetic collisions of comets in the Oort Cloud
D) anti-matter stars in the halo of the Milky Way Galaxy
E) a completely baffling mystery with no hint of an answer
Correct Answer:
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Q1: What observation in astronomy, made AFTER the
Q3: Today, astronomers find compelling evidence that the
Q4: What makes astronomers believe that the energy
Q5: How do astronomers now explain the fact
Q6: An astronomer claims that the large redshifts
Q7: Today we know that what all quasars
Q8: A friend of yours who is a
Q9: The astronomer who first solved the problem
Q10: When astronomers make counts of how many
Q11: If quasars are at the distances most
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