Astronomers Dig Up the Stars That Birthed the Milky Way

For around 20 years, astronomers have struggled to find an ancient group of stars mixed in with the gas, dust and newer stars of our galaxy’s bulge. These “fossil” stars preceded the Milky Way and should have been discernible by their distinctive chemistry and orbits. Yet until recently, only a small number of them had ever been found. Now, a determined effort using data-intensive machine learning…

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