Astrophysical processes
type: Concept
narrower: Relativity

General relativity
type: Concept
broader: Relativity

Gravitation
type: Concept
related: Relativity

Relativity
type: Concept
related: Gravitation
alternative label: Relativistic astrophysics
alternative label: Relativistic models
broader: Astrophysical processes
narrower: Relativistic mechanics
narrower: General relativity
narrower: Special relativity

Relativistic mechanics
type: Concept
broader: Relativity

Special relativity
type: Concept
broader: Relativity