Questions tagged [time-travel]
For use on questions regarding travel forwards or backwards (or both!) in time. This tag should be used in conjunction with the universe it is found in. Can also be used to signify that the question contains time travel when asking in relation to an identification question: [story-identification], [episode-identification], [character-identification] and [object-identification].
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Two spacecraft pilots travel at light speed, meet back on Earth in different era due to time dilation
I've been looking for the name of a sci-fi romance book about space travel but haven't been successful so far. I came across it a few years ago, read the plot on its back cover but didn't read the ...
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SciFi book where scientists learn to peek through time (possibly controlled miniature wormhole?). Computer screens were carried like a handkerchief
Read it in the 90's. I remember one specific part where the inventor of the peeking mechanic has his Eureka moment, and has the presence of mind to give a thumbs-up/wave to the future, when they look ...
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Why Couldn't a Time Turner Have been Used to Stop Voldemort?
With the use of a time turner, that opens a whole "Pandora's Box" of possibilities. While the use of one can be problematical, when the Ministry of Magic found out how dangerous Voldemort was, why ...
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How was Skynet created in the original timeline?
The Terminator movies leave us with a sort of "chicken or the egg" problem.
Let's review some key facts
In 2029, Skynet sends a T-800 back to kill Sarah Connor
In 2029, John Connor sends Kyle Reese ...
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Short story ID: Bouncing-Ball Time Travel
A little help please. The story I'm looking for is probably late-50's to mid-60's, and may well have occurred in an SF magazine.
A professor is demonstrating his new time machine to a scientific ...
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Time Traveler steps on a butterfly, changes everything
I heard of this in high school, but never learned its title or author- supposedly the aforementioned worm butterfly would have played a part in evolution that caused the extinction of the dinosaurs (...
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Man is sitting in his room and gets contradictory advice from two men from the future
Years ago I read short story about a man sitting in his room. Suddenly appears the same man but from the future and gives him an advice about the future. Original man seems to agree to follow that ...
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How does the time loop in Predestination get initialized?
In Predestination starring Ethan Hawke, the idea is plain and simple. However, I do find something very hard to digest:
How could the loop about Ethan Hawke the time travel agent, could meet himself ...
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What "time travel" story required the traveller to mentally reconstruct his world in order to return to it?
Here's what I remember about it:
The protagonist is sent a relatively short distance into the future
(maybe a year? I've forgotten).
When he arrives in this "future" he finds himself in a completely ...
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Need help identifying short story about retired military colonel who fought war at end of time
I read this story in an anthology in the eighties or early nineties. It was about an old man who lived outside a western-like town, though that might have just been how I imagined it. He goes to ...
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Book series about time travel from future to distant past, psychic powers?
Please help me identify this book series:
In the future, humanity has started to develop psychic powers by encouraging breeding of genetic traits. Humans find a way to travel back to a specific time ...
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Sci-Fi short story that involved time travel and a couple who keep losing each other
I read a collection of Sci-Fi short stories back in the 1970's or early 80's that had one about a couple in love who kept losing each other. The book was my dad's so the story itself could be much ...
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Nude time travel in Terminator Universe
Why do they travel naked in time in Terminator universe? Is it ever explained in the movies or tv serials? If they cannot carry weapons, how do the cyborgs travel with metal under their skin?
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How did Skynet send back the T-1000 and the T-X?
As we learn in the original Terminator movie only living, organic material can be sent back in time:
REESE: "You go naked. Something about the field generated by a living
organism. Nothing dead ...
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What happens to the second Marty at the end of Back to the Future?
In Back to the Future (the original movie), Marty comes back from 1955 10 mins early to prevent Doc from being shot (which he fails at). He then rolls up to the Lone Pine Mall and sees himself hit 88 ...
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A girl who transcends time
I remember quite a bit, but can't seem to find the title or (female) author.
A girl accompanies her father as he captains a mission to travel at near-light speed in order to experience the effects of ...
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How much older was Hermione after her third year at Hogwarts?
In her third year at Hogwarts, Hermione is given a time-turner so she can take more classes. Several of her classes are concurrent to each other, so she attends one class (for 1-2 hours) goes back in ...
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Where is Hill Valley?
Many BTTF fans know that Marty, Doc and Jennifer arrive in Hill Valley on October 21st 2015, and were eagerly awaiting that date.
As outlined in this question, they arrive at 4:29PM. However, the ...
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Why didn't the time cops try to stop Janeway when she traveled back in time to rescue Voyager?
In the series finale "Endgame", a future Admiral Janeway travels 26 years into her past to take the ship and crew through a Borg transwarp hub to the Alpha quadrant.
However, in "Relativity", Captain ...
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Story about plagiarism by means of time machine
I can't remember the name of the story, and couldn't find anything on Google searches either.
The story is about a science fiction writer whose story gets rejected by the publisher because it's word-...
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Why was the time turner never used again?
It seems like it would be a very helpful device.
Why was it never used again, regardless of the purpose?
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Why didn't Temporal Agents stop Nero from destroying Vulcan?
Temporal Agents were supposed to keep eyes on timeline. Whenever timeline was altered and Temporal Agents failed to prevent it, it was due to advanced tech of other factions of Temporal Cold War.
...
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90s/2000s TV show : man uses government time machine to fix national problems
This is a TV series from the early 2000s (maybe the late 90s). It was on prime time TV in the US.
There is a government agency that has a time machine that allows the main character to jump back in ...
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Help Identify Viking Time Travel Short Story
I read a short story in the mid-90s which was fairly similar to Poul Anderson's "The Man Who Came Early." Different from that story, this was told from the modern protagonist's point of view. ...
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Identify a catastrophic sci fi story written before 1980: ruptured spleen, alien moon base, time and space travel, antimatter tool
I read a sci fi short story sometime between 1974-1980 but it may have been written long before that. I believe it was in a paper back anthology of sci fi stories, but I'm not certain.
I think the ...
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1950s short story about using radar to see into the past and filming historic events
Probably written in the 1950's, this was a science fiction short story about a couple of guys who use radar technology from WWII to be able to see into the past. They film what they see and release ...
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Book about a town that is transported by an explosion into a freezing desert
It starts with a town that was hit by a mysterious explosion which transports that town into a desert. The weather is cold and people burn coal but they soon run out and send out an expedition to look ...
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Trying to find a Sci-Fi movie, probably from the 50's or 60's
I’m trying to identify a movie I saw when I was very young. It was a “Saturday Matinee” playing on one of the local stations, and I likely watched it in the late 60’s. So I expect that the movie is ...
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Title of 80's movie: future-era timetraveling humans go extinct and rescue/kidnap todays air crash victims
What is the title of a 80's (i believe?) movie where humans in the far future are going extinct, and are aquiring new humans by going back in time to todays world, kidnapping air travelers that are ...
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Was Kyle Reese always John Connor's father? [duplicate]
If Kyle Reese was always John Connor's father:
Kyle pops out of nowhere, impregnates Sarah, dies, and then Kyle Reese is born, becomes a member of resistance and he is sent back in time. John Connor ...
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In Back to the Future, why was the speed 88 miles per hour?
Why not use 89, maybe 100 miles per hour? Is 88 the fastest a DeLorean can go? In other metrics, I have:
Unit
Equivalent
Abbreviation
Miles per hour
88.00
[mph][mi/h]
Miles per second
0.0244
[mps][...
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Need help to find a sci-fi collection I read at school (mid 80s)
I am now 46 and so it's been bugging me for over 30 years - time to try and do something about it.
The collection was in my lower school library (UK). It was a thick black hardback book and I believe ...
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Can Marty McFly ever truly return home?
In the Back to the Future trilogy, the character Marty McFly travels back in time, and meets his own parents. In doing this, he directly changes the outcome of many things including the relationship ...
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A man condemned to serve his sentence in other times
Looking for help to find a science fiction short story about a man send to the past to serve his sentence, and at the end when he is happy, married and successful, his is recaptured by a co-worker who ...
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Why is the "Arnold Schwarzenegger" terminator referred to by two different product numbers (T-101, T-800)?
In the original film, The Terminator, Schwarzenegger's character was a "Cyberdyne Systems Model 101". Likewise for Terminator 2 & 3.
However, in the video game adaptation of Terminator 3, this ...
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How does time travel take into account the rotation/revolution of the Earth? [closed]
Hypothetically, if you were to travel say, 6 months into the past with no spatial displacement, you would end up floating in space because the Earth would be on the opposite side of the sun.
I know ...
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80s or 90s TV episode where a man trapped between two seconds sees world deconstructed and rebuilt
I'm trying to find an episode from what I think is a sci-fi TV series produced sometime in the 80s or 90s.
In the episode, a man and another character(s) finds himself stuck in the interval between ...
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Why was the DeLorean in Back To The Future not always covered in ice after time travel, and why didn't it fly in 1885?
I have noticed some things that I can't understand in the Back To The Future films about the DeLorean.
In part I, when Einstein is sent 1 minute into the future the DeLorean comes back completely ...
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Scifi novel about two high dimension beings trapped on earth by a "jailer"
Looking for a recent novel about a pair of aliens who fight amongst each other and trapped on Earth as a result.
They try to escape, by nudging humanity towards discovering specific tech, and are ...
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Time traveling astronaut appearing frozen to observers in time travel accident
So I was recently watching the series seven episode of Doctor Who titled "Hide" and it struck me that I had read a short story that was remarkably similar to the astronaut woman of the episode.
Here'...
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Book about time portals inside an asteroid in Earth orbit
I read this book many years ago and it had a nice plot. For the life of me I can't remember the name or author so I need help.
Story: one asteroid shaped object appears close to Earth orbit or in the ...
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On the nature of paradoxes in the Whoniverse?
Loosely: How do Paradoxes work in Doctor Who?
We see in previous episodes,
To allow a paradox to occur.
We also have the the weeping angels, that feed off of time loops. They are however supposedly,...
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Story Identification: composer brought from the past to the future
Please help with identifying the following short story.
The story plot goes as follows: scientists discover a way to transfer sick people who are on their deathbed to the future and cure them of ...
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Ocean of time book?
I remember reading a book where people figured out time travel and when they entered "Time" they could swim through it, but it would cause ripples and change things.
They would take certain time ...
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Old cartoon movie about a time traveling boy?
I'm having trouble identifying a cartoon movie I watched as a kid. It was about a boy who could travel in time and, after exploring many different eras, he goes to the future and discover our society ...
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Story about a time-traveler living backwards in a capsule
I'm hunting for the title of a short story where a senile old man appears in a capsule in a laboratory.
They eventually realize time is passing backwards for him. After years he helps them build the ...
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Space ship manned by only AI returns home to a different earth, back in time
I read this short story 30 years or more ago.
A space ship is returning home to Earth from a battle. There are no people on board this ship, only an AI and the ship's computer. When the ship tries to ...
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Time Travel Book featuring dinosaurs, cave people, and children
I remember reading a time travel book when I was young, which means it would have been written no later than the '80s, but probably much before that.
It featured an adult and some kids back in time ...
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Looking for an old-old sci-fi tale about time-traveling
As recommended, I'm "migrating"/"duplicate" from literature here, to sci-fi.
I can not remember, who is the author, but this seems was Ray Bradbury, however, I've already read couple of his short ...
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Time travel short story where dinosaur doesn't taste like chicken
I ran across this other question about time travel and dinosaurs, and it reminded me of an old short story I read a long time ago.
I read it in a collection of short stories. It would have been a ...
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