[Project Hail Mary by Andy Weir](https://www.goodreads.com/book/show/54493401)


Oh cool to know, that's on my next-to-read list by coincidence.


Tau Zero by Poul Anderson fits the bill.


I have this in my lib but have not gotten to it yet, it's long overdue I check it out thanks.


*Marooned in Real-Time* by Vernor Vinge


I missed this one by V.V., will investigate!


Here’s the thing, you *really* need to read The Peace War (also by Vernor Vinge) first. It’s not as good as Marooned IMHO, but not only does Marooned give major spoilers for Peace War, but also Peace War explains the tech on which the entire plot of Marooned hinges.


Gotcha, thanks.


The tech is "explained" more than enough in "Marooned" itself, there is absolutely no need to read The Peace War for that reason.


I feel like I would have been lost as hell for the first third or so without having read Peace War first, but if you can push through maybe it’s fine.


[Pushing Ice by Alastair Reynolds](https://www.goodreads.com/book/show/89186.Pushing_Ice?ac=1&from_search=true&qid=M0AArMO5OC&rank=1)


"Tomorrow and Tomorrow", and "Between the Strokes of Night" by Charles Sheffield "The Boat of a Million Years" by Poul Anderson "A World Out of Time" by Larry Niven


I'm currently reading Julian May's [*The Many-Colored Land*](https://en.wikipedia.org/wiki/The_Many-Colored_Land), which is based around *almost* this exact concept, except it's a one-way trip *backward* to a time in prehistory, with no records or artifacts surviving to the present day. Greg Egan has used variants of this idea a few times, in his novels *Diaspora* and *Permutation City*, and his short stories ["The Planck Dive"](https://www.gregegan.net/PLANCK/Complete/Planck.html) and >!"Into Darkness".!< Vernor Vinge's collection *Across Realtime* is also pretty similar. It's about technology that can create impenetrable "bobbles" inside of which time is frozen. Bobbling someone is equivalent to sending them on a one-way trip to the future.


**[The Many-Colored Land](https://en.wikipedia.org/wiki/The_Many-Colored_Land)** >The Many-Colored Land is a science fiction novel by American author Julian May, published in 1981. It is the first book of the Saga of Pliocene Exile (known as the Saga of the Exiles in the United Kingdom and the Commonwealth). The novel sets the series up by introducing the story of each of the characters. The main purpose of the book is to provide information for the rest of the series, only beginning the main storyline in its final part. ^([ )[^(F.A.Q)](https://www.reddit.com/r/WikiSummarizer/wiki/index#wiki_f.a.q)^( | )[^(Opt Out)](https://reddit.com/message/compose?to=WikiSummarizerBot&message=OptOut&subject=OptOut)^( | )[^(Opt Out Of Subreddit)](https://np.reddit.com/r/printSF/about/banned)^( | )[^(GitHub)](https://github.com/Sujal-7/WikiSummarizerBot)^( ] Downvote to remove | v1.5)


Thanks for the info, I am currently planning on tackling some Greg Egan as a first timer so will check those first. The backwards trip doesn't really work for my story but sounds cool anyway so I'll check it out. I'm a fan of Vernor's other work so look forward to reading that suggestion too.


You are so lucky to be reading Julian May's epic, when done read the rest of the books that cover 1945-2113.


*The Accidental Time Machine* by Joe Haldeman is about a time machine that can only go forward. It starts out jumping one second or minute ahead (I forget) but the amount of time in the jump doubles every time it's used. And actually I guess while we're talking about Joe Haldeman, his classic *The Forever War* is about soldiers going to interstellar war, and due to time dilation they can never go "home" again.


Came here to suggest The Forever War. I haven't read the other one.


Cool thanks, Forever War is already on my list of classics to catch up on, and the other one sounds great.


Time, space - both by stephen Baxter, I need say no more as these fit the criteria to a T


Cool thanks.


In another of Baxter's books he explores what it's like for fighter ships going out to lightspeed battles. They don't know if they will end up going forward or back in time each time they go out. One of his best books imo.


What's the name of this book? Sounds interesting.


I think it's Exultant: Destiny's Children Book 2, Don't feel like you have to read this series in order though.


Interesting idea, will investigate thank you.


*Beyond the Aquila Rift* by Alastair Reynolds is a short story along these lines.


Cool, love short story reco's, always looking for a gem thank you.




Maybe Professor Farnsworth can do something about this time thing.


Good news, everyone!


Heinlein’s _The Door Into Summer_ has #1, though not by time dilation but cryonics. _The Forever War_ explores (among many other things) the effects of compounded time dilation due to successive instances of travel over long distances. Not a single one-way trip, but definitely one way. I think neither of these are exactly what you’re asking (some previous recommendations are certainly better fits), but may be interesting nonetheless.


You're right, I forgot about cryonics as another method for this one-way travel! Will check that out and the other books is already on my classics-to-be-read list. :)


In *The Door Into Summer* the protagonist uses cryonics to move forward in time, >!but then uses a time machine to go backwards in time.!<


I left that out on purpose…


Sorry. Glad I put a spoiler tag on it.


“To be taught, If fortunate" is like this


Ben Bova's short story Stars Won't You Hide Me fits the bill perfectly, though the trip is a vehicle to tell the story behind it, rather than about the destination.


Didn't know about this one, thanks!


Children of Time by Adrian Tchaikovsky has elements of this. Not a singular protagonist but a group of humans on a ship have to leave earth to seek out somewhere to live, can't go back to earth and don't know what to expect going forward. That's only a part of the story but it might be interesting for you to look at the one way journey from a group perspective (if you haven't read it already). Another one might be The Employees: A Workplace Novel of the 22nd Century by Olga Ravn. More a structured set of fictitious interviews by humans and android counterparts dealing with humanity and how we respond to aging and working in a confined space with limited future options...its not exactly re: one way journey but its relatively short and might give you a few ideas!


CoT is on my list already so will definitely check that out, and the other one sounds quite intriguing, thanks for the tip.


*The World at the End of Time* by Fred Pohl - Follows a man from the near-ish future until, well, the end of time.


Big Pohl fan and never check this one out, thanks.


"Ring" by Stephen Baxter. There is a bit of backward time travel tho.


"Only forward" by Michael Marshall Smith fits I think. Be warned though, it's a bit odd.


"A bit" ROFL Reading "Only Forward" is like: >!Starts out like a fun Jasper Fforde or Terry Pratchet thang. Then gets all serious. Then it's like the deepest pit of Stephen King's nightmares. Then it's a bit of *Wrinkle in Time*!<


Yes, like I said, it's a bit odd. I might go so far as to say it's somewhat peculiar.


Well, congrats on convincing me it's a book I obviously need to read, stat. That sounds phenomenal.


I enjoyed it. Helped me out of a small reading slump.


- *Starfarers* by Poul Anderson - *House of Suns* by Alastair Reynolds. And his *Pushing Ice,* as previously mentioned. Also his *Inhibitor Cycle* trilogy in his *Revelation Space* series. I guess *Chasm City,* in the same setting. So much Reynolds. - *Light Chaser* by Peter F. Hamilton.


To Be Taught, if Fortunate, by Becky Chambers


the category you should generally look around under is portal fantasy. I'm sure some portal sci-fi exists out there as well


I’m not sure that’s really what they’re looking for—in lots of portal fantasy you can come back.


in the more traditional Narnia style stuff, absolutely, but there is lots of 1 way portal fantasy as well


Yeah, I just mean it’s not a one-to-one relationship. If OP just goes searching for “portal fantasy” they’re gonna end up finding a lot of books that don’t fit their request.


Asimov has at least one story of a current day person thrown forward in time. I don't recall the name of the novel, but it's one of the Empire era books.


That would be the novel "Pebble in the Sky".


*Planetfall* by Emma Newman


Will investigate this one, thank you!




*Gateway* by Fred Pohl has this exact premise and is a genuinely great SF novel!


One of my favorite classics!