One of the greatest challenges in astronomy has been to find the first generation of stars born in the universe. According to our current cosmological models, these stars formed just a hundred million years after the big bang, when the universe was less than 1% of its age. The search for these elusive celestial bodies has returned empty-handed time and time again. But now, a team of astronomers has made a groundbreaking discovery, providing concrete evidence of the traces of the first stars formed in the universe.

So, how did astronomers identify the first generation of stars? What clues did they use to differentiate them from the countless others that litter the night sky? Finally, and most importantly, why is this discovery so important in physics and astronomy?

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