Question: Brian Tinsley is a physicist whose wife made fundamental contributions to the astronomical understanding of how galaxies what?
Sentence (from "Beatrice Tinsley"): Beatrice Muriel Hill Tinsley (27 January 1941 – 23 March 1981) was a British-born New Zealand astronomer and cosmologist whose research made fundamental contributions to the astronomical understanding of how galaxies evolve, grow and die.
Relevant evidence: Yes