Is the universe twisted? A new check on a possible twist in the universe's oldest light
Sep 24, 2026
The cosmic microwave background (CMB) is the universe's oldest light, leftover thermal radiation from about 380,000 years after the big bang. Maps of the CMB offer a picture of the "baby universe" as it was 13.8 billion years ago.
https://phys.org/news/2026-09-universe-oldest.html
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