The horizon is the line at which the sky and the Earth's surface appear to meet.

Horizon or The Horizon may also refer to:

Art, entertainment, and media

Films

Games

Music

Albums

Songs

Periodicals

Television and web series

Other arts, entertainment, and media

Companies and brands

Radio and television providers

Events and organizations

Places

Schools

Science

Computing

Earth science and archeology

  • Horizon (archaeology), a distinctive sediment, artefact, style or other cultural trait that is found at archaeological sites across a large geographical area
  • Horizon (geology), a bedding plane or a thin bed of distinctive character within a stratigraphic sequence
  • Marker horizon, a distinctive stratigraphic unit, of the same age across several locations
  • Soil horizon, a specific and distinctive layer in a land area

Physics

  • Horizon (general relativity), that play a role in Einstein's theory of general relativity
  • Absolute horizon, a boundary in spacetime in general relativity inside of which events cannot affect an external observer
  • Apparent horizon, a surface defined in general relativity
  • Cauchy horizon, a surface found in the study of Cauchy problems
  • Celestial horizon, a great circle parallel to the horizon
  • Cosmological horizon, a limit of observability: the maximum distance from which particles can have travelled to an observer in the age of the universe
  • Event horizon, a boundary in spacetime beyond which events cannot affect the observer
  • JPL Horizons On-Line Ephemeris System, an interactive facility that computes the position of many solar system objects
  • Killing horizon, a null surface on which there is a Killing vector field
  • Radio horizon, the locus of points in telecommunication at which direct rays from an antenna are tangential to the surface of the Earth

Transportation

Other uses

  • Fusion of horizons, understanding that results from the dynamic process of integrating the 'Other' and the familiar
  • Project Horizon, a study to determine the feasibility of the construction of a military base on the moon conducted in 1959

See also

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