"The missing piece of the puzzle, however, was how the Sun managed to get past the Milky Way’s central bar—a dense region that cuts across the galaxy and serves as a barrier to moving stars.

To better understand the Sun’s history, the lead authors behind the new studies, Daisuke Taniguchi from Tokyo Metropolitan University and Takuji Tsujimoto from the National Astronomical Observatory of Japan, used data taken by the European Space Agency’s Gaia mission. By sifting through observations of nearly two million stars, they found 6,594 that were similar to the Sun.

The researchers analyzed the sizes, temperatures, and composition of the solar twins to estimate their ages and noticed a broad peak for stars around 4 to 6 billion years old (including the Sun). The discovery that the Sun, along with its twins, are of similar ages and positioned around the same distance from the center of the Milky Way suggests that the stars were part of a mass migration event."
https://gizmodo.com/our-sun-was-born-in-a-hellish-part-of-the-milky-way-new-research-explains-how-it-escaped-2000733122