The older stars migrated out from the galactic center, leaving the younger ones inside.
How far the Milky Way's disk extends has long been difficult to define—it doesn't end sharply, but fades away gradually at ...
An international team has mapped the Milky Way’s star-forming boundary at about 35,000 to 40,000 light-years from its center using stellar age measurements and galaxy simulations. The work revealed a ...
How far the Milky Way's disc extends has long been difficult to define — it doesn't end sharply, but fades away gradually at its outer edges. Now, for the first time, an international team of ...
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