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A recent discovery challenges the belief that the structure of spiral galaxies didn't form until the universe was half its current age. The finding, published in the journal Nature, presents a galaxy that has a spiral shape around a bar of stars. This galaxy is similar to the image of the Milky Way, which is believed to have formed 11.7 billion years ago, when the universe was only 2.1 billion years old, or 15% of its current age. El descubrimiento desmonta la concepción de que la estructura de las galaxias espirales no se habrÃa consolidado hasta que el Universo alcanzó la mitad de su edad actual. El hallazgo que publica este miércoles la revista Nature, muestra una galaxia que forma una espiral en torno a una barra de estrellas, similar a la imagen de la VÃa Eláctrica que se habrÃa formado hace 11.700 millones de años, cuando el Universo sólo contaba con 2.100 millones de años, el 15% de su edad actual, que se calcula en 13.800 millones de años.
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