Digital SAT Reading and Writing Practice Question #673

Text 1 In the 1920s, astronomer Edwin Hubble observed that galaxies are moving away from Earth, with those further away moving faster. This discovery, derived from the redshift of galactic light, provided the first empirical evidence that the universe is expanding, fundamentally upending the prevailing scientific consensus of a static, eternal cosmos. Text 2 While Hubble’s observations were undeniably groundbreaking, modern historical analysis shows that Georges Lemaître, a Belgian physicist, had theoretically derived the expansion of the universe from Einstein’s equations of general relativity two years prior. Lemaître even estimated a rate of expansion, yet his work remained largely obscure until Hubble’s observational data serendipitously corroborated his theoretical framework. Based on the texts, how would the author of Text 2 most likely characterize Hubble's contribution to cosmology?