10s 10--10s 10-1"s 10s 10s 10 s 100 s 3x 10° y 10° y 10° y TOE GUT 10" Gev 10" Gev 100 Gev 1 Gev Figure 34.9 The evolution of the universe from the Big Bang onward is intimately tied to the laws of physics, especially those of particle physics at the earliest stages. The universe is relativistic throughout its history. Theories of the unification of forces at high energies may be verified by their shaping of the universe and its evolution. 1dentical particles SUIQud 'suosog ypaA Spontaneous symmetry preaking. Inflation Leptons, quarks, W', Z°, photons Electroweak Loptons, hadrons, photons o Light nuclei Atoms Stars, protogalaxies, galaxies MON A o0L

10s 10--10s 10-1"s 10s 10s 10 s 100 s 3x 10° y 10° y 10° y TOE GUT 10" Gev 10" Gev 100 Gev 1 Gev Figure 34.9 The evolution of the universe from the Big Bang onward is intimately tied to the laws of physics, especially those of particle physics at the earliest stages. The universe is relativistic throughout its history. Theories of the unification of forces at high energies may be verified by their shaping of the universe and its evolution. 1dentical particles SUIQud 'suosog ypaA Spontaneous symmetry preaking. Inflation Leptons, quarks, W', Z°, photons Electroweak Loptons, hadrons, photons o Light nuclei Atoms Stars, protogalaxies, galaxies MON A o0L