The age of the universe can be estimated or constrained from
A) the age of the oldest objects such as globular clusters.
B) the distances of galaxies beyond our Local Group of galaxies.
C) the rate of recession of the galaxies beyond the Local Group.
D) all of the above.
Correct Answer:
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Q18: The Hubble time is
A) the time it
Q19: The assumption of homogeneity states that
A) the
Q20: Space-time will be flat if
A) the universe
Q22: What is the fate of an open
Q22: If galaxy A is four times more
Q24: "Seeds" around which galaxies, clusters and walls
Q24: What observation has prompted astronomers to ponder
Q25: The flatness problem states that
A) the density
Q26: The best determination of the Hubble constant
Q28: What observational evidence supports the fact that
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