Discovery of stars ‘as old as the universe’ in the far reaches of the Milky Way


STORY – This unexpected look at the first ages of the universe earned the international team of astronomers a publication in the prestigious journal Nature.

What we’ve done is sort of galactic archeology, explains Nicolas Martin, astronomer at the Strasbourg Astronomical Observatory. We searched for ancient stars, and came across the equivalent of a beautiful atypical dinosaur fossil, a cluster of stars far more primitive than previously thought possible, which formed very soon after. the big bang.” This unexpected look at the first ages of the universe earned the international team of astronomers a publication in the prestigious journal Nature.

“In astrophysics, to study the past, either we use a very large telescope like Hubble or the James Webb to detect very distant and very luminous galaxies, and observe them as they were a few billion years ago, either we are looking much closer, in our own galaxy, for very primitive stars, and that is what we have done”, explains the Strasbourg astronomer. To find these…

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