New observations from the James Webb Space Telescope might have caught the signature of the universe’s first stars. This visualization shows the formation of the first stars, known as Population III stars. Abel Wise / Kaehler (KIPAC / SLAC) Astronomers might have finally discovered the very first generation of stars. At most a few hundred million years after the Big Bang, the bright behemoths formed out of the primordial brew of hydrogen and helium that filled the newborn universe. When they ended their short lives in titanic supernova explosions, these stars enriched interstellar space with the heavier atoms forged in their nuclear ovens. As a result, later generations of stars always contain a smattering of elements such as carbon and oxygen.…