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 ...

Well, it’s confession time: I’ve been lying to you. I’ve said on many occasions in this column that our Milky Way galaxy has a flat disk. But it’s not really flat—not according to any reasonable ...

A group of undergraduate students stumbled into a cosmic time capsule—one of the oldest stars ever discovered—while combing through massive astronomy datasets. What began as a class project quickly ...

The Milky Way has just been reconstructed in unprecedented detail, with artificial intelligence helping astronomers track the motions and histories of roughly 100 billion stars inside a single digital ...

The older stars migrated out from the galactic center, leaving the younger ones inside.

Researchers using new simulations suggest that the Milky Way’s past collisions may have reshaped its dark matter core. This distorted structure could naturally explain the puzzling gamma-ray glow long ...

It may be our galactic neighborhood, but it is not always easy to see. However, that is about to change. For the next several months, the iconic band of hazy light, known as the Milky Way, should ...

The Milky Way is a spiral galaxy containing 100-400 billion stars. Planet Earth sits along one of the galaxy’s spiral arms. Though the Milky Way is generally always visible from Earth, certain times ...