Science ❯ Astronomy

Galactic Structure

Milky Way Star Distribution 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.

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

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

Interstellar Comet 3I/Atlas Nears Dec. 19 Perihelion on Safe, Distant Track

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

Researchers Estimate 3I/ATLAS Interstellar Comet Is Over Seven Billion Years Old

Scientists Unveil First Molecular Cloud Detected via Far-Ultraviolet Light

Gaia Spacecraft Concludes Historic Mission Mapping the Milky Way

Astronomers Release Most Detailed Infrared Map of the Milky Way