News From the Field
Explosion of Galaxy Formation Lit Up Early Universe
September 4, 2012
The universe was dark until the first stars began to form, but really lit up once massive hydrogen clouds began birthing galaxies of stars. A study by the University of California, Berkeley, post-docs Oliver Zahn and Christian Reichardt using data from the South Pole Telescope finds that this period, the Epoch of Reionization, was later and more explosive than thought, ending 13 billion years ago.
University of California, Berkeley
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