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Wilf Woods | Gazing at the night sky, book in hand

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The making of the cosmos by black holes is the subject of a new book, “Gravity’s Engines,” by Caleb Scharf.

It is subtitled “How Bubble-blowing Black Holes Rule Galaxies, Stars, and Life in the Cosmos.”

Scharf leaves us with a description of black holes that are more than just huge vacuum cleaners that suck in everything in sight, including light.

Scharf writes that “no other object in the universe is so efficient at converting matter into energy...A black hole is…

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