Milky Way Under Growing Threat
Astronomical studies have revealed that the Milky Way has undergone violent mergers throughout its history, including a collision between Gaia, Sagittarius, and Enceladus between 8 to 11 billion years ago. This event led to changes in its structure, propelled stars into unusual orbits, altered the galaxy's inclination, and possibly reshaped its dark matter halo, which connects and stabilizes it.
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