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![WorldAndScience Avatar](https://lunarcrush.com/gi/w:24/cr:twitter::511402689.png) World and Science [@WorldAndScience](/creator/twitter/WorldAndScience) on x 2.6M followers
Created: 2025-07-26 00:52:08 UTC

These dark nebulae, Barnard XX on the right and Barnard XX on the left, block out starlight due to their heavy concentration of gas and dust, making them appear like dark, spectral forms against the sky

Credit: ESO/VPHAS+ team. Acknowledgment: Cambridge Astronomical Survey Unit

![](https://pbs.twimg.com/media/GwvqjrsXAAA2VoE.jpg)

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