What method is being used to discover whether we live in an unbounded universe,in which expansion will continue forever,or a bounded universe,in which expansion will eventually turn into contraction and lead us to recollapse? A) Careful monitoring of the Moon-Earth distance to detect the slowdown of the expansion of the universe B) Measurement of the deviation from uniformity of the cosmic background radiation C) Measurement of the curvature of the Hubble relationship,v = H₀d,at large distances D) Measurement of the bending of light by distant galaxies as it follows the curvature of space

Question

Quizplus · Accepted Answer

Measurement of the curvature of the Hubble relationship, $v = H_0d$, at large distances is used to determine the fate of the universe's expansion. This involves observing the relationship between the velocity at which galaxies are receding from us and their distance, to infer the overall geometry and density of the universe, which in turn indicates whether the universe will expand forever or eventually recollapse.

What Method Is Being Used to Discover Whether We Live