The Glass Universe: How the Ladies of the Harvard Observatory Took the Measure of the Stars by Dava Sobel
A half a million glass photographic plates hold the only visual record of the night sky between 1885 and 1992. This dazzles me and I’m not an astronomer. It dazzles me even more to learn that a group of dedicated women (mostly unpaid) spent decades attending to these glass slides with utmost dedication well before …
