Scientists used stellar age mapping to identify the Milky Way's star-forming edge at 35,000–40,000 light-years from the galactic center.
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Scientists just found the Milky Way’s edge and it’s closer than expected
35,000–40,000 Light-Years light-years from cen Galactic edge distance
Stellar Age Mapping Detection method
U-Shaped Distribution Showing Sharp Star Formation Cutoff Pattern observed
35,000–40,000 Light-Years From Center star-forming edge