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1. • • Answering this question requires understanding how time actually works – something physicists are far from certain about. So far, what we can say with confidence is that travelling into the future is achievable, but travelling into the past is either wildly difficult or absolutely impossible.
     www.bbc.com/future/article/20231110-doctor-who-is-time-travel-really-possible-heres-what-physics-says

     Is time travel really possible? Here’s what physics says - BBC

2. People also ask

   How do physicists study time travel?

   • 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), theoretical loops in spacetime that might make it possible to travel through time.

   Quantum mechanics of time travel - Wikipedia

   en.wikipedia.org/wiki/Quantum_mechanics_of_time_travel

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   Are there any scientific theories about time travel?

   • There are other scientific theories about time travel, including some weird physics that arise around wormholes, black holes and string theory. For the most part, though, time travel remains the domain of an ever-growing array of science fiction books, movies, television shows, comics, video games and more.

   Time travel: Is it possible? - Space.com

   www.space.com/21675-time-travel.html

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   Is time travel possible?

   • In conclusion, the concept of time travel is a fascinating and complex subject that continues to capture the imaginations of scientists and the general public alike. While theoretical physics suggests that it may be possible, we are still far from achieving this feat.

   The Physics Of Time Travel: Is It Really Possible?

   timequiver.com/blog/time-concept/physics-time/physics-time-travel-really-possible

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   What does Einstein's theory of relativity say about time travel?

   • This theory says that time and space are linked together. Einstein also said our universe has a speed limit: nothing can travel faster than the speed of light (186,000 miles per second). Einstein's theory of relativity says that space and time are linked together. Credit: NASA/JPL-Caltech What does this mean for time travel?

   Is Time Travel Possible? | NASA Space Place – NASA Science for Kids

   spaceplace.nasa.gov/time-travel/en/

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   How do we understand the mathematics of time travel?

   • In order to understand the mathematics of time travel, we must first acknowledge two fundamental building blocks of our universe - quantum mechanics and relativity. Quantum mechanics deals with the behavior of subatomic particles, while relativity explains how gravity affects space-time.

   The Physics Of Time Travel: Is It Really Possible?

   timequiver.com/blog/time-concept/physics-time/physics-time-travel-really-possible

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   Can time travel to the near future?

   • Time traveling to the near future is easy: you’re doing it right now at a rate of one second per second, and physicists say that rate can change. According to Einstein’s special theory of relativity, time’s flow depends on how fast you’re moving. The quicker you travel, the slower seconds pass.

   Is Time Travel Possible? - Scientific American

   www.scientificamerican.com/article/is-time-travel-possible/

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3. spaceplace.nasa.gov › time-travel › enIs Time Travel Possible? | NASA Space Place – NASA Science ...

   spaceplace.nasa.gov › time-travel › en

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   • How Do We Know That Time Travel Is Possible?
   • Can We Use Time Travel in Everyday Life?
   • In Summary

   More than 100 years ago, a famous scientist named Albert Einstein came up with an idea about how time works. He called it relativity. This theory says that time and space are linked together. Einstein also said our universe has a speed limit: nothing can travel faster than the speed of light (186,000 miles per second). What does this mean for time ...

   See full list on spaceplace.nasa.gov

   We can't use a time machine to travel hundreds of years into the past or future. That kind of time travel only happens in books and movies. But the math of time travel doesaffect the things we use every day. For example, we use GPS satellites to help us figure out how to get to new places. (Check out our video about how GPS satellites work.) NASA s...

   See full list on spaceplace.nasa.gov

   Yes, time travel is indeed a real thing. But it's not quite what you've probably seen in the movies. Under certain conditions, it is possible to experience time passing at a different rate than 1 second per second. And there are important reasons why we need to understand this real-world form of time travel.

   See full list on spaceplace.nasa.gov

4. en.wikipedia.org › wiki › Quantum_mechanics_of_timeQuantum mechanics of time travel - Wikipedia

   en.wikipedia.org › wiki › Quantum_mechanics_of_time

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   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), theoretical loops in spacetime that might make it possible to travel through time. [1][2][3][4] In the 1980s, Igor Novikov ...

5. Videos

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     Is Time Travel Possible? Here's What Physics Says.

     14 Oct 2023

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     theconversation.com

     Can we time travel? A theoretical physicist provides some answers

     12 Jun 2022

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     astronomy.com

     Is time travel possible? An astrophysicist explains

     19 Nov 2023

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6. www.scientificamerican.com › article › is-timeIs Time Travel Possible? | Scientific American

   www.scientificamerican.com › article › is-time

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   Apr 26, 2023 · Time traveling to the near future is easy: you’re doing it right now at a rate of one second per second, and physicists say that rate can change. According to Einstein’s special theory of ...

7. timequiver.com › blog › time-conceptThe Physics Of Time Travel: Is It Really Possible?

   timequiver.com › blog › time-concept

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   Oct 7, 2024 · Can we defy the laws of physics and manipulate time to our advantage? In this article, we will delve into the world of physics and explore the possibility of time travel. We will examine the nature of time itself, including its properties and how it relates to space.

8. www.space.com › 21675-time-travelTime travel: Is it possible? - Space.com

   www.space.com › 21675-time-travel

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   Feb 24, 2024 · Explore physicist Peter Millington's thoughts about Stephen Hawking's time travel theories at The Conversation. Check out a kid-friendly explanation of real-world time travel from NASA's Space...

9. www.bbc.co.uk › 20130806-is-time-travel-possibleIs time travel possible? - BBC Future

   www.bbc.co.uk › 20130806-is-time-travel-possible

   Aug 6, 2013 · The simple answer is yes. The more complex answer is it requires travelling close to the speed of light. And always going forward. Unless you find a wormhole.