Science ❯Astronomy ❯Celestial Mechanics

Gravitational Interactions

Mini-Moons Orbital Dynamics Orbital Migration Planetary Orbits Stability of Planets

Astronomers Identify X-Ray Signal as Evidence of Planet Destroyed by White Dwarf

A decades-old mystery in the Helix Nebula reveals a Jupiter-sized planet torn apart by its dying star.

Interstellar Object May Have Shaped Planetary Orbits in Early Solar System

Earth's Temporary 'Mini Moon' Departs After Two-Month Stay