5 current observations tell us that the hubble constant ho 72 km s mpc
5. Current observations tell us that the Hubble constant Ho= 72 km s¹ Mpc-¹. When Hubble first attempted to measure this value, he arrived at a much larger value,H₂= 500 km s¹ Mpc-¹. Suppose for a moment that our universe had such a large Hubble constant. a. What would the distance be (in Mpc) of a galaxy with a red shift of z= 0.023?Compare this with the "correct" value. b. What would be the Hubble time? Compare this with the age of some constituents of the universe based on other considerations and comment. c. Discuss the hot topic of "Hubble tension" and what kind of explanations have been offered thus far to address this.
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