Hubble Data Reveals Milky Way Merged With Dwarf Galaxy 12 Billion Years Ago

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NASA released an artist's concept on August 17, 2026, illustrating an ancient collision between the Milky Way and a dwarf galaxy called LKH. The merger is estimated to have occurred approximately 12 billion years ago, when the Milky Way was still in its early stages of formation. Researchers analyzed data collected by NASA's Hubble Space Telescope to reach their conclusions. The findings, which provide definitive evidence of the merger event, were published in the scientific journal Nature Astronomy.

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