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"cross-referenced" is a TikTok video posted by capwithoutacountry on 4 July 2021.

Transcript[]

Stitch with @capwithoutacountry: "The expansion of the universe itself is not measured as a speed, which is distance over time–"

"I'm self-stitching here just to provide an update, because an article published on Friday, July 2nd indicates that researchers at the University of Chicago have cross-referenced measurements of the cosmic microwave background radiation with measurements of the movements of the Cepheids to determine the most accurate measure of the universe's rate of expansion ever achieved, with that rate of expansion being 69.8 kilometers per second per megaparsec. The study will eventually be published in Astrophysical Journal."