A very distant galaxy cluster in the early Universe. Credit: ESO
Astronomers have shed further light on the evolution of the early Universe with the discovery of a “team” of super bright galaxies. For about 150 million years after the Big Bang, the Universe was a “dark” place, made of just H and He atoms, as the first stars had yet to be formed. This all changed with the first generation of stars, so bright and powerful that their light started to break apart hydrogen atoms around them, while their cores produced the elements essential for life itself.
By peering back through time, Dr David Sobral and his team at Lancaster University have now confirmed a sample of galaxies that are giving us a unique glimpse into that era...
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