For the first time, scientists have detected a signal from “cosmic dawn” — the moment when the universe's earliest stars emerged. The signal, reported Wednesday in the journal Nature, is little more than a blip in the radio echo of that ancient era, as difficult to detect as the wingbeat of a hummingbird caught in a hurricane. But if confirmed, researchers say it can help explain the events that gave rise to the first stars, black holes, galaxies and, eventually, every other object in existence. In a companion study, another scientist proposes that the unexpected size of the signal suggests it was influenced by dark matter — a potential new clue to one of the most persistent mysteries in the universe. read more https://www.washingtonpost.com/news...t-lit-up-the-universe/?utm_term=.c4e344135ed7
