Birdwatch Note Rating
2023-08-11 17:50:10 UTC - HELPFUL
Rated by Participant: 5BFD45529A43736654D431C652ACC3D29C4F1A47FC0A0ADC3D6EA1FF2A58E5B1
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Original Note:
This is an oversimplification. Although disc galaxies in the low-redshift universe do appear to rotate approximately once every billion years, it is still unclear whether this is true of all galaxies, including those at higher redshifts and non-disc galaxies. https://academic.oup.com/mnras/article/476/2/1624/4925565
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