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.

By tracing spectral signatures in ancient stardust, scientists pinpointed water molecules forged within supernovae remnants like Cassiopeia A, confirming that the universe's first water brewing in ancient supernovae after Big Bang predates planets and even early galaxies.