The Science of Why We Exist: A History of the Universe from the Big Bang to Consciousness

Coulson, a zoology professor at Oxford University, debuts with an expansive if overly digressive chronicle of how billions of years of cosmic history set the stage for the emergence of humans. He explains that “13.77 billion years ago, the universe was a ball of hot energy” that transformed into electrons and quarks, the latter of which joined together to form the first protons and neutrons. Some nine billion years later, the planet Theia collided with Earth and kicked up debris that consolidated into the moon, which created tidal conditions crucial to the development of the first life forms. He details the extraordinary sequence of events that had to happen for life to appear on Earth; for instance, if Jupiter hadn’t moved around the solar system before settling into its current orbit, the space debris it absorbed would have been pulled to Earth, making it too heavy to stay in the habitable zone. Elsewhere, Coulson explores the origins of DNA and how consciousness emerged to organize the five senses. Unfortunately, tedious tangents about Coulson’s love for Australia’s Bungle Bungle mountain range and life in academia distract. Intrusive personal commentary drags down an otherwise enlightening whistle-stop scientific history. Agent: Rebeca Carter, Rebecca Carter Literary. (July)