Twelve billion years ago, when the universe was still in its youth, the nascent Milky Way consumed another galaxy — an ancient collision that helped forge the cosmic home we inhabit today. A team led by Davide Massari at the Italian National Institute for Astrophysics has now confirmed this long-debated merger, using the preserved chemical memory of globular clusters to read a chapter of galactic history older than most stars we can see. The discovery reminds us that identity — even on a cosmic scale — is shaped not by solitude, but by collision, absorption, and transformation across unimagina