Concept
Roche Limit
The distance within which a body is torn apart by tides.
The minimum orbital distance at which a satellite held together only by gravity is pulled apart by tidal forces from its planet.
Overview
The minimum orbital distance at which a satellite held together only by gravity is pulled apart by tidal forces from its planet.
See also
Hill Sphere
The volume in which a body's gravity dominates.
Cosmic Expansion
Space itself stretching, carrying galaxies apart.
Big Rip
An end-of-universe scenario where everything is torn apart.
The Big Bang
How everything began, 13.8 billion years ago.
Black Holes
Regions where gravity stops light itself.
Dark Matter
The invisible mass holding galaxies together.