All articles tagged with #solar twins
Using Gaia data, scientists found that the Sun and thousands of Sun-like stars formed near the Milky Way's center about 4–6 billion years ago and migrated outward in a synchronized wave, likely aided by the galaxy's central bar, reshaping our understanding of the Sun’s origin and the Milky Way's history.
New Gaia-based research suggests the Sun and many Sun-like stars formed at similar times and distances from the Milky Way’s center and likely migrated outward from the galactic core about 4–6 billion years ago as the Milky Way’s central bar evolved. This outward journey could have placed our solar system in a calmer outer disk for much of its history, potentially aiding Earth’s habitability and the emergence of life. The findings stem from two astronomy studies analyzing ~6,600 solar twins within ~1,000 light-years and will be broadened with upcoming Gaia data.
A Gaia-based study identified about 6,600 Sun-like stars with similar ages and compositions that likely migrated outward from the Milky Way’s crowded center during the formation of the galaxy’s central bar 4–6 billion years ago, suggesting the Sun itself may have moved into a quieter outer disk and offering a possible explanation for Earth’s habitable environment.