Space travel was travel from one celestial body to another.
Methods
- spacecraft was any vessel adapted to carrying living beings through the vacuum of outer space.
- teleportation was direct transmission from one place to another, whether by technological (TV: The End of the World, Boom Town, The Time Monster) or supernatural (TV: The Brain of Morbius) means.
- some species had a native ability to move through space, like star whales (TV: The Beast Below)