Gaia-Sausage-Enceladus

Did the Milky Way Flip 90 Degrees in Its Youth?

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The Milky Way may have undergone a massive, slow-motion structural shift, with its stellar disc rotating more than 90 degrees over billions of years. Research presented by Kirill Batrakov of Durham University at the 2026 National Astronomy Meeting suggests this galactic “somersault” was likely triggered by a historic collision with the Gaia-Sausage-Enceladus galaxy, leaving the … Read more

Violent Collision May Have Destroyed Milky Way’s First Stellar Disk

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The Era of Galactic Archaeology: Reading the Stars Like a History Book For centuries, we viewed the night sky as a static tapestry. But modern astronomy is shifting toward a discipline known as “galactic archaeology.” Instead of just observing where stars are, scientists are now analyzing where they came from and how they move, treating … Read more

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