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            "id": 13768,
            "url": "https://svs.gsfc.nasa.gov/13768/",
            "result_type": "Produced Video",
            "release_date": "2020-11-18T09:50:00-05:00",
            "title": "Baryon Acoustic Oscillations",
            "description": "This animation explains how BAOs arose in the early universe and how astronomers can study the faint imprint they made on galaxy distribution to probe dark energy’s effects over time. In the beginning, the cosmos was filled with a hot, dense fluid called plasma. Tiny variations in density excited sound waves that rippled through the fluid. When the universe was about 400,000 years old, the waves froze where they were. Slightly more galaxies formed along the ripples. These frozen ripples stretched as the universe expanded, increasing the distance between galaxies. Astronomers can study this preferred distance between galaxies in different cosmic ages to understand the expansion history of the universe. Credit: NASA's Goddard Space Flight CenterMusic: \"Pulse and Glow\" from Adrift in Time.  Written and Produced by Lars Leonhard.Watch this video on the NASA Goddard YouTube channel.Complete transcript available. || BAO_Still_2.jpg (3840x2160) [368.0 KB] || BAO_Still_2_searchweb.png (320x180) [62.8 KB] || BAO_Still_2_thm.png (80x40) [6.0 KB] || 13768_BAO_Narr_1080_Best.mp4 (1920x1080) [97.5 MB] || 13768_BAO_Narr_1080.mp4 (1920x1080) [44.8 MB] || 13768_BAO_Narr_1080_Best.webm (1920x1080) [9.5 MB] || 13768_BAO_Narr_ProRes_3840x2160_2997.mov (3840x2160) [3.4 GB] || 13768_BAO_Narr_4k.mp4 (3840x2160) [250.0 MB] || 13768_BAO_Narr_SRT_Captions.en_US.srt [1.7 KB] || 13768_BAO_Narr_SRT_Captions.en_US.vtt [1.7 KB] || ",
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