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Ancient Gas Cloud may be a Relic from the Death of First Stars

Snapshot from a simulation of the first stars in the Universe, showing how the gas cloud might have become enriched with heavy elements. The image shows one of the first stars exploding, producing an expanding shell of gas (top) which enriches a nearby cloud, embedded inside a larger gas filament (centre). The image scale is 3,000 light years across, and the colourmap represents gas density, with red indicating higher density. Credit: Britton Smith, John Wise, Brian O'Shea, Michael Norman, and Sadegh Khochfar

Snapshot from a simulation of the first stars in the Universe, showing how the gas cloud might have become enriched with heavy elements. The image shows one of the first stars exploding, producing an expanding shell of gas (top) which enriches a nearby cloud, embedded inside a larger gas filament (centre). The image scale is 3,000 light years across, and the colourmap represents gas density, with red indicating higher density. Credit: Britton Smith, John Wise, Brian O’Shea, Michael Norman, and Sadegh Khochfar

Researchers have discovered a distant, ancient cloud of gas that may contain the signature of the very first stars that formed in the Universe...

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