Science ❯ Astronomy

Theoretical Astronomy

Planetary Models Hypothetical Planets Models of Formation Planet Formation Theories Celestial Mechanics

JWST Finds Early Massive Galaxy That Isn't Rotating

The result challenges standard timelines for how massive galaxies lose their spin.

Astronomers Find Rare ‘Inside-Out’ Planetary System With Rocky Outer World

Scientists Detect Largest Known Rotating Filament in the Cosmic Web

Astronomers Identify Prime Candidate for Hypothetical Planet Nine

New Candidate for Planet Nine Challenges Original Hypothesis