Friday, July 31, 2026
Science

Primordial halo simulations reveal how cosmic storms shaped the universe's first stars

Just a few hundred million years after the Big Bang, the universe was a dark and simple place. There were no galaxies like the Milky Way, no planets, and no heavy elements such as carbon or oxygen. Instead, vast clouds of primordial hydrogen and helium drifted through space, slowly falling into invi...

Primordial halo simulations reveal how cosmic storms shaped the universe's first stars
Image: Phys.org
Just a few hundred million years after the Big Bang, the universe was a dark and simple place. There were no galaxies like the Milky Way, no planets, and no heavy elements such as carbon or oxygen. Instead, vast clouds of primordial hydrogen and helium drifted through space, slowly falling into invisible cocoons of dark matter known as "minihalos." Within these halos, the very first stars—called Population III stars—were born.

Originally published at Phys.org

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