Science ❯ Astronomy

Galactic Structure

Milky Way Star Distribution Stellar Discs Star-Forming Disks Stellar Associations Milky Way Composition Spiral Arms Star-Forming Regions Dark Matter Local Bubble

Astronomers Pinpoint the Milky Way’s Star-Forming Edge at About 35,000–40,000 Light-Years

Ages of more than 100,000 giant stars trace a sharp cutoff in star birth across the disk.

Caltech Astrophysicist Carl Grillmair Killed as 29-Year-Old Is Charged With Murder

Pleiades Recast as Core of a Vast 'Greater Pleiades' Stellar Family

Study Ties Earth’s Early Crust Changes to Milky Way Spiral-Arm Passages

Gaia Data Yields Most Accurate 3D Map of Nearby Stellar Nurseries