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  2. Quantum mechanics of time travel - Wikipedia

    en.wikipedia.org/wiki/Quantum_mechanics_of_time...

    The theoretical study of time travel generally follows the laws of general relativity. Quantum mechanics requires physicists to solve equations describing how probabilities behave along closed timelike curves (CTCs), which are theoretical loops in spacetime that might make it possible to travel through time. [1] [2] [3] [4]

  3. A Scientist Proved Paradox-Free Time Travel Is Possible - AOL

    www.aol.com/lifestyle/scientist-proved-paradox...

    Time travel is deterministic and locally free, a paper says—resolving an age-old paradox.. This follows research observing that the present is not changed by a time-traveling qubit.. It’s ...

  4. Time travel - Wikipedia

    en.wikipedia.org/wiki/Time_travel

    Time travel is the hypothetical activity of traveling into the past or future. Time travel is a concept in philosophy and fiction, particularly science fiction. In fiction, time travel is typically achieved through the use of a device known as a time machine. The idea of a time machine was popularized by H. G. Wells's 1895 novel The Time ...

  5. A Scientist Says Time Travel Is Possible With Ring Lasers - AOL

    www.aol.com/scientist-says-time-travel-possible...

    Science & Tech. Shopping. Sports. Weather. A Scientist Says Time Travel Is Possible With Ring Lasers. Tim Newcomb. March 2, 2023 at 5:02 PM. ... In Einstein’s theory, space and time relate to ...

  6. Chronology protection conjecture - Wikipedia

    en.wikipedia.org/wiki/Chronology_protection...

    The chronology protection conjecture is a hypothesis first proposed by Stephen Hawking that laws of physics beyond those of standard general relativity prevent time travel—even when the latter theory states that it should be possible (such as in scenarios where faster than light travel is allowed).

  7. Scientists say time travel is possible - AOL

    www.aol.com/news/2016-11-28-scientists-say-time...

    The scientists are saying there are many parallel universes where every conceivable outcome occurs and these different universes interact with one another.

  8. Intergalactic travel - Wikipedia

    en.wikipedia.org/wiki/Intergalactic_travel

    Intergalactic travel for humans is therefore possible, in theory, from the point of view of the traveler. [7] For example, a rocket that accelerated at standard acceleration due to gravity toward the Andromeda Galaxy and started to decelerate halfway through the trip would arrive in about 28 years, from the frame of reference of the observer.

  9. Closed timelike curve - Wikipedia

    en.wikipedia.org/wiki/Closed_timelike_curve

    With a suitable movement of what appears to it its own space axis, the object appears to travel through time as seen externally. A closed timelike curve can be created if a series of such light cones are set up so as to loop back on themselves, so it would be possible for an object to move around this loop and return to the same place and time ...