Listening to the author enthusiastically read his short book of astrophysics was a good way to digest this information-heavy topic. Some was a reminder of things I learned long ago, some was over my head, and much was new, updated findings in the decades since I was in school. And after listening to some sections twice I feel I’ve retained a few new bites of info. Like this favourite bit of trivia – A sphere is the most efficient design in the world/universe. The contents of a super-jumbo box of Cheerios can fit into a sphere four inches in diameter.

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