Geodesics

* A straight line on paper.

* Walking straight across a room.

* Driving on a straight road.

* An airplane flying across Earth.

* A ship crossing an ocean.

* The equator around Earth.

* A line connecting two points on a globe.

* A straight path on a flat surface.

* A path on a spherical surface.

* A line along a cylinder.

* A path across a cone.

* A path on a curved mountain.

* A path across a curved hill.

* A route across a curved bridge.

* A path on a dome.

* A line on a curved roof.

* A path across a sphere.

* A path on an ellipsoid.

* A path on a saddle-shaped surface.

* A path on a torus.

* Earth's orbit around the Sun.

* The Moon's motion around Earth.

* Mars moving around the Sun.

* Jupiter moving around the Sun.

* Saturn moving around the Sun.

* A comet moving through space.

* An asteroid traveling through space.

* A meteor moving through space.

* A satellite orbiting Earth.

* A spacecraft coasting around Earth.

* A spacecraft traveling toward Mars.

* A spacecraft traveling toward Jupiter.

* A spacecraft passing near a planet.

* A spacecraft escaping Earth's gravity.

* A spacecraft moving between planets.

* A spacecraft traveling toward the Sun.

* A spacecraft passing near the Sun.

* A spacecraft moving around a star.

* A planet orbiting another star.

* A moon orbiting another planet.

* Light traveling through empty space.

* Light passing near the Sun.

* Light passing near a black hole.

* Light bending around a galaxy.

* Light traveling through curved spacetime.

* A free-falling astronaut in space.

* A freely falling satellite.

* A particle falling toward Earth.

* A particle falling toward the Sun.

* A particle moving near a neutron star.

* A particle moving near a black hole.

* A spacecraft coasting after engine shutdown.

* A spacecraft traveling toward Proxima Centauri.

* A spacecraft traveling toward Alpha Centauri.

* A spacecraft traveling toward TRAPPIST-1.

* A spacecraft traveling toward Barnard's Star.

* A spacecraft crossing interstellar space.

* A spacecraft leaving the Solar System.

* A spacecraft entering another star system.

* A spacecraft approaching an exoplanet.

* A spacecraft orbiting an exoplanet.

* A spacecraft passing between two stars.

* A spacecraft traveling across the Milky Way.

* Light traveling from one star to another.

* A particle moving between two galaxies.

* A freely falling object near a massive star.

* A clock falling freely in a gravitational field.

* A photon traveling through a gravitational field.

* A particle orbiting a black hole.

* A particle falling into a black hole.

* A photon moving near a black hole's photon sphere.

* A satellite moving through Earth's curved spacetime.

* A spacecraft passing near a neutron star.

* A particle moving around a rotating black hole.

* Light traveling near a rotating black hole.

* Light coming from a distant galaxy.

* Light from the early universe traveling toward Earth.

* A photon traveling through the expanding universe.

* A particle moving in a curved universe.

* A freely falling object in an idealized universe.

* A path calculated in a computer simulation of gravity.

* A path through a mathematical curved space.

* A path through a hypothetical wormhole geometry.

* A path through a hypothetical warp-drive spacetime.

* A particle following a path in a gravitational model.

* Two freely falling objects moving along nearby paths.

* Two neighboring spacecraft following different gravitational paths.

* A spacecraft following a gravity-assist trajectory between thrust maneuvers.

* A spacecraft coasting after a propulsion burn.

* A spacecraft moving toward a planet without thrust.

* A spacecraft traveling away from a star without thrust.

* A spacecraft moving through a weak gravitational field.

* A spacecraft crossing a region of curved spacetime.

* A light beam crossing a gravitational-wave region.

* A particle moving in an idealized curved spacetime.

* A photon traveling through a cosmological model.

* A freely falling object near a galaxy.

* A test particle moving around a massive object.

* A mathematical path connecting two events in spacetime.

* A SpaceTrain traveling between stars during an unpowered coast.

Remember: A geodesic is the straightest possible path in a given geometry. Some paths above are approximate examples or require special conditions; powered spacecraft do not follow geodesics while thrusting.