"Astronomers tallying up all the normal matter — stars, galaxies and gas — in the universe today have come up embarrassingly short of the total matter produced in the Big Bang 13.6 billion years ago."
https://news.berkeley.edu/2025/04/11/half-of-the-universes-hydrogen-gas-long-unaccounted-for-has-been-found/?utm_source=join1440&utm_medium=email&utm_placement=newsletter&user_id=66c4c92f5d78644b3ac5d5b4
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