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Astronomy and Astrophysics

Still-forming galaxy spotted near the dawn of the universe

Still-forming galaxy spotted near the dawn of the universe

Astronomers using a giant radio telescope in the Atacama Desert of Chile have sighted the star-forming hotspot in a lopsided galaxy that was still growing when the universe was just 800 million years old. The findings, published in Monthly Notices of the Royal Astronomical Society, shed light on a time in the history of the cosmos that has been shrouded in mystery. The formation of the earliest galaxies is somewhat hidden from view because the early universe was full of a soup of neutral hydrogen gas that absorbed the ultraviolet light being emitted by these young stars. But that stellar radiation also helped to slowly clear away the haze by ionizing it, a process that started only a few...

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