Researchers Find Universe’s First Water Brewing in Ancient Supernovae After Big Bang

Researchers discover abundant water from primordial supernovae at cosmic dawn, showing the universe’s first water formed just 100 million years after the Big Bang. Turns out, supernova explosions were the universe’s original water factories—making cosmic hydration trendier than ever in galactic history.
The Portsmouth and UAE team’s Nature Astronomy study reveals water mass fractions in early galaxies rivaled today’s Milky Way, with pair-instability supernova cores packing up to 10⁻³ solar masses of water—making “first water in universe” a blockbuster in space science news.