Researchers from Tokyo, Japan, have discovered that the Sun was born in a difficult part of the Milky Way, where it may have had rough beginnings. The researchers created a catalog of thousands of stellar twins, stars born around the same time as the Sun that share similar characteristics to our host star, uncovering evidence of a mass migration from the core of the galaxy 4 to 6 billion years ago. The Sun, which is now located around 26,000 to 28,000 light-years from its birthplace, settled into a quieter part of galactic neighborhood where organisms could develop and evolve. The discovery could help scientists reconstruct how the solar system evolved and how Earth first developed.