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 a dent in spacetime described by just three fundamental quantities: mass, spin, and electrical charge.”
As we gaze on a star-studded sky, Scharf takes us on a journey of how those galaxies came into being.