Physics, 30.05.2021 19:50 NicolasG

One astronomer (Alice) claims that the Hubble constant is 25 km/sec/Mly, while another (Bob) claims that it is 20 km/sec/Mly. If, based on the Hubble constant, Alice claims that a particular galaxy is 4 billion light years away, then Bob would insist that it is

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One astronomer (Alice) claims that the Hubble constant is 25 km/sec/Mly, while another (Bob) claims...

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