Observing Unique sTars and gaLactic chemIcal Evidence of the fiRst relicS
The number of identified primitive low-metallicity stars has steadily grown. Today, we know of stars with less than one ten-millionth of the solar iron content, but no stars completely devoid of metals —known as Population III (Pop III)— have been identified so far. It was commonly accepted that only massive, short-lived Pop III stars formed from
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