A team of researchers from the University of California, Berkeley, has shown that the big bang, the event that created the universe, was followed by a period of chaos. This period, which lasted for about 10^-35 seconds, was marked by violent fluctuations in the density and temperature of the universe.

The researchers used a computer simulation to model the early universe. They found that the big bang produced a very hot and dense universe that was filled with particles of matter and radiation. These particles were moving at very high speeds and collided with each other frequently. The collisions created even more particles, which in turn collided with each other. This process created a very chaotic environment.

The chaos lasted for about 10^-35 seconds. At this point, the universe began to expand and cool. The particles of matter and radiation began to spread out, and the universe became less dense. This allowed the particles to interact with each other less frequently, and the chaos began to subside.

The researchers believe that the period of chaos was necessary for the universe to form. The chaos helped to create the conditions that allowed for the formation of stars and galaxies.

The findings of the researchers are published in the journal Physical Review Letters.