IMAGES

  1. Exploring the Mysteries of Time Travel Through Space

    space.com time travel

  2. Time Travel Isn't Possible…Or Is It?

    space.com time travel

  3. Time travel

    space.com time travel

  4. Five ways to travel through time

    space.com time travel

  5. Where Does the Concept of Time Travel Come From?

    space.com time travel

  6. Is Time Travel possible? This theory opens new window of reality

    space.com time travel

COMMENTS

  1. Time travel

    An observer traveling at high velocity will experience time at a slower rate than an observer who isn't speeding through space. While we don't accelerate humans to near-light-speed, we do send ...

  2. Is Time Travel Possible?

    In Summary: 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.

  3. A beginner's guide to time travel

    Einstein found that the faster you move through space, the slower you move through time — you age more slowly, in other words. One of the key ideas in relativity is that nothing can travel ...

  4. Will time travel ever be possible? Science behind curving space-time

    She explained how, theoretically, time travel is possible. The mathematics behind creating curvature of space-time are solid, but trying to re-create the strict physical conditions needed to prove ...

  5. Is time travel possible? An astrophysicist explains

    Time travel is the concept of moving between different points in time, just like you move between different places. ... but astronauts who visit the International Space Station orbit around the ...

  6. Best time travel games

    While you're at it, make sure to check out our guide to the best time travel movies too, or if you're after more games then these upcoming space games will interest you. 10. Deathloop. (Image ...

  7. Is time travel even possible? An astrophysicist explains the science

    Telescopes are a kind of time machine - they let you peer into the past. NASA's newest space telescope, the James Webb Space Telescope, is peering at galaxies that were formed at the very ...

  8. Is Time Travel Possible?

    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 ...

  9. Time Travel: Observing Cosmic History

    The answer is simply light. The term "light-year" shows up a lot in astronomy. This is a measure of distance that means exactly what it says - the distance that light travels in one year. Given that the speed of light is 186,000 miles (299,000 kilometers) per second, light can cover some serious ground over the course of 365 days.

  10. Can we time travel? A theoretical physicist provides some answers

    Time travel makes regular appearances in popular culture, with innumerable time travel storylines in movies, television and literature. But it is a surprisingly old idea: one can argue that the ...

  11. Best time travel movies

    15. The Time Traveler's Wife. (Image credit: New Line Cinema) Release date: August 14, 2009. Cast: Eric Bana, Rachel McAdams, Ron Livingston. The original marketing of The Time Traveler's Wife ...

  12. Wild New Physics Theory Explains Why Time Travel Is Impossible

    Wild New Physics Theory Explains Why Time Travel Is Impossible. Physics 26 October 2023. By Mike McRae. An artistic depiction of a wave encountering an exponentially curved spacetime. (Matias Koivurova) Sliding care-free through the complete emptiness of space, light covers a constant 299,792,458 meters every second. No more, no less.

  13. The Universe: Life-Altering Consequences of Time Travel (S5, E4

    One of the Universe's most enduring mysteries is Time Travel. In this episode, we explore the possibilities. Discover why Time Travel into the future is unav...

  14. What is space-time?

    Space-time is the conceptual model that best explains how the universe works.(Image credit: Shutterstock) Jump to: Discovery. How space-time works. Remaining mysteries. Additional resources. The ...

  15. Paradox-Free Time Travel Is Theoretically Possible, Researchers Say

    In a peer-reviewed journal article, University of Queensland physicists say time is essentially self-healing. Changes in the past wouldn't necessarily cause a universe-ending paradox. Phew.

  16. What Are Wormholes, and Could They Be the Answer to Time Travel?

    Wormholes are essentially hollow tubes through space and time that can connect very distant regions of the universe. A star may be thousands of light-years away, but a wormhole can connect that star to us with a tunnel only a few steps long. Wormholes also have the somewhat mystical ability to allow backwards time travel.

  17. Time travel could be possible, but only with parallel timelines

    Time travel and parallel timelines almost always go hand-in-hand in science fiction, but now we have proof that they must go hand-in-hand in real science as well. General relativity and quantum ...

  18. The Great Debate: Could We Ever Travel through Time?

    And we move through space in all directions just fine, and according to physics, travel through time should be just as possible. One way that people have looked into is via a wormhole—a shortcut ...

  19. Time Travel and Modern Physics

    Time Travel and Modern Physics. First published Thu Feb 17, 2000; substantive revision Mon Mar 6, 2023. Time travel has been a staple of science fiction. With the advent of general relativity it has been entertained by serious physicists. But, especially in the philosophy literature, there have been arguments that time travel is inherently ...

  20. Would you really age more slowly on a spaceship at close to light speed

    Time dilation is a concept that pops up in lots of sci-fi, including Orson Scott Card's Ender's Game, where one character ages only eight years in space while 50 years pass on Earth. This is ...

  21. Relativity Visualized

    The theory of relativity holds a certain fascination for many people. At the same time it is often regarded as very abstract and difficult to understand. Part of the difficulties in understanding relativity are due to the fact that relativistic effects contradict everyday experience. Motion, for example, is a familiar process and everybody ...

  22. Exploring the Reality of Time Travel: Science Fact vs ...

    Time travel, a longstanding fascination in science fiction, remains a complex and unresolved concept in science. The second law of thermodynamics suggests time can only move forward, while Einstein's theory of relativity shows time's relativity to speed. Theoretical ideas like wormholes offer potential methods, but practical challenges and ...

  23. How fast does light travel?

    The speed of light in a vacuum is 186,282 miles per second (299,792 kilometers per second), and in theory nothing can travel faster than light.

  24. Scientists Release Largest Trove of Data on How Space Travel Affects

    More and more humans are traveling to space. Several missions in 2021 took private citizens on tourist flights. Last month, six people flew to the edge of Earth's atmosphere and back. NASA plans ...

  25. New research studies why traveling in space ages astronauts so much

    Bailey spent months studying the biology of the space travelers. But Monday's video conference was the first time she'd seen them face-to-face. "I'm familiar with your DNA," she told Arceneaux and ...

  26. Space elevators could get us to Mars in record time

    A space elevator could make it much cheaper and faster to get goods to other planets, like Mars. The Obayashi Corporation based in Japan announced in 2012 plans to begin building one by next year ...

  27. Space travel makes people dumber, study says

    Apparently space travel makes people dumber A study looked into brain function of four privateer astronauts who spent time in space, and found that their performances dropped in orbit

  28. Time Travel Equation Solved By Astrophysicist

    Love and loss pushed Professor Mallett into an obsession with time and space. When he was 10 years old, his father passed away from a heart attack.

  29. 2024 Total Eclipse: Where & When

    Human Space Travel Research; Explore; ... This table provides the time that totality began in some U.S. cities in the path of totality. These areas also experienced a partial eclipse before and after these times. ... The National Aeronautics and Space Administration. NASA explores the unknown in air and space, innovates for the benefit of ...