Genesis

Résumé du livre

Guido Tonelli is an Italian particle physicist who played a key role in the discovery of the Higgs boson. He’s currently a CERN visiting scientist, and professor of General Physics at the University of Pisa.

The universe's story begins with a rapid phase of inflation, leaving behind a formless expanse of massless particles moving at light speed. Uniformity dominates until the Higgs boson intervenes, granting mass to particles and introducing diversity. As the universe cools, the Higgs bosons vanish, having fulfilled their role, only to be rediscovered billions of years later at CERN. The pace of cosmic evolution slows, and gravity emerges as a key force, pulling gas together to form the first stars—colossal megastars that forge heavier elements essential for future stars and planets. The universe, born from a void through quantum fluctuations, expands rapidly, its energy balanced perfectly between matter and gravity. The Higgs field’s influence enables particles to form stable structures, leading to the emergence of light and the first atoms. Over time, stars live and die, dispersing elements that coalesce into galaxies, each anchored by supermassive black holes. The Milky Way, a spiral galaxy with 200 billion stars, enters a tranquil phase, setting the stage for the formation of our solar system. Within a molecular cloud, gravity shapes the sun and planets, including Earth, which develops oceans through asteroid and comet impacts. Life begins in these oceans 3.5 billion years ago, evolving into humanity, capable of unraveling this 13.8-billion-year cosmic journey.

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