Time Travel
**Time travel** is the concept of moving between different points in time, similar to moving through space. It frequently appears in science fiction but is also studied in theoretical physics. While forward time travel occurs naturally—objects move forward in time at a regular rate—backward time travel, or travel at different rates, presents significant scientific challenges. Solutions to Einstein's equations, such as wormholes and closed timelike curves, suggest theoretical possibilities, but practical time travel remains unproven. Paradoxes and causality violations are major concerns in such theories. More information can be found at Wikipedia: Time travel.
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ENGLISH COLLECTIONOCTOBER 14, 2025 AT 10:38:02 UTC