Scientists have uncovered the true boundary of the Milky Way’s star-forming region using stellar “age mapping.” They found a ...

The Milky Way galaxy grew into its current form with the help of smaller galaxies over time, which it has "consumed" or ...

From your place inside the Milky Way, you are living within a galaxy that keeps a detailed chemical diary. Every star holds clues about when it formed and what the galaxy was like at the time. Over ...

The Milky Way is at least 100,000 light-years across, but the new results suggest that the galaxy's star formation takes ...

An enormous supercluster made up from over 20 individual galaxy clusters hiding behind our dusty Milky Way is even larger ...

New simulations of Milky Way-like galaxies reveal that the strange split between two chemically distinct groups of stars may arise from several very different evolutionary events. Bursts of star ...

Astronomers have chased hypervelocity stars for more than a century. These rare objects move so fast that the Milky Way cannot keep them. When a star exceeds the galaxy’s escape speed, it becomes ...

Thousands of sun "twins" spotted by a space telescope could shed new light on how our star came to host at least one life-friendly world — and a big stellar migration was involved. Researchers used ...

How far the Milky Way's disk extends has long been difficult to define—it doesn't end sharply, but fades away gradually at ...