Time travel is the hypothetical activity of traveling into the past or future. Time travel is a concept in philosophy, space, time and fiction, particularly science fiction. In fiction, time travel is typically …

Nov 14, 2013 · We begin with the definitional question: what is time travel? We then turn to the major objection to the possibility of backwards time travel: the Grandfather paradox. Next, issues …

Jan 20, 2026 · The Short Answer: Although humans can't hop into a time machine and go back in time, we do know that clocks on airplanes and satellites travel at a different speed than those on Earth. …

TIME TRAVEL definition: 1. the idea of travelling through time into the past or the future 2. the idea of traveling through…. Learn more.

TIME TRAVEL definition: hypothetical transport through time into the past or the future. See examples of time travel used in a sentence.

Time travel is the concept of movement between certain points in time, analogous to movement between different points in space by an object or a person, typically with the use of a hypothetical device …

time travel in American English a journeying into the past or the future, as in science fiction