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James Webb's Discovery of a Dead Star Shortly After the Birth of the Universe Upsets Our Understanding of the Cosmos

Before the galaxies drew their spirals, even before the light went freely through space, some stars already lived intensely enough to die in a luminous burst. It was at this still obscure time that astronomers managed to rise. Thanks to technology capable of capturing the oldest glows, they identified a supernova whose signal comes from the first hundreds of millions of years of the Universe. A star explosion coming from the bottom of the ages I…
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Before the galaxies drew their spirals, even before the light went freely through space, some stars already lived intensely enough to die in a luminous burst. It was at this still obscure time that astronomers managed to rise. Thanks to technology capable of capturing the oldest glows, they identified a supernova whose signal comes from the first hundreds of millions of years of the Universe. A star explosion coming from the bottom of the ages I…

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Science-et-vie.com broke the news in on Saturday, December 13, 2025.
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