A surprising discovery about the evolution of our galaxy using data from the Gaia mission found a large number of ancient stars on orbits similar to that of our sun. They formed the Milky Way's thin disk less than 1 billion years after the Big Bang, several billion years earlier than previously believed.
Discovery of ancient stars on the stellar thin disk of the Milky Way retrieved 31 July 2024 from https://phys.org/news/2024-07-discovery-ancient-stars-stellar-thin.html
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