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- 1Scientists Propose New Test for Twisted Cosmic Microwave Background▼The Universe's Oldest Light May Be Twisted — and There's a New Way to Test It
Physicists say the universe's oldest light — the cosmic microwave background — may carry a twist, a subtle rotation that would hint at new physics from the early universe. A newly proposed method could allow researchers to detect this twisting effect for the first time, offering a fresh way to probe fundamental laws. The idea is drawing attention among cosmologists studying what happened moments after the Big Bang.