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The Sun's Great Escape
Our Sun didn't always call this quiet corner of the Milky Way home. New research using data from the European Space Agency's Gaia satellite has uncovered evidence that the Sun fled the chaotic heart of our Galaxy four to six billion years ago and it didn't go alone. A vast migration of stars almost identical to our own swept outward together, a great exodus that may have made life on Earth possible. The story of how astronomers pieced this together is as remarkable as the discovery itself.
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