Mapping the heavens (2016)

Mapping the Heavens: The Radical Scientific Ideas That Reveal the Cosmos by Priyamvada Natarajan Choose this if you want to see how astronomers map phenomena they can’t photograph directly. Natarajan puts dark matter alongside black holes and cosmic expansion, showing how each idea gained acceptance through a different set of observations. It’s a broad history that pairs well with a book devoted to the dark matter evidence.