this post was submitted on 10 Oct 2025
193 points (99.0% liked)

Ask Lemmy

35029 readers
1139 users here now

A Fediverse community for open-ended, thought provoking questions


Rules: (interactive)


1) Be nice and; have funDoxxing, trolling, sealioning, racism, and toxicity are not welcomed in AskLemmy. Remember what your mother said: if you can't say something nice, don't say anything at all. In addition, the site-wide Lemmy.world terms of service also apply here. Please familiarize yourself with them


2) All posts must end with a '?'This is sort of like Jeopardy. Please phrase all post titles in the form of a proper question ending with ?


3) No spamPlease do not flood the community with nonsense. Actual suspected spammers will be banned on site. No astroturfing.


4) NSFW is okay, within reasonJust remember to tag posts with either a content warning or a [NSFW] tag. Overtly sexual posts are not allowed, please direct them to either !asklemmyafterdark@lemmy.world or !asklemmynsfw@lemmynsfw.com. NSFW comments should be restricted to posts tagged [NSFW].


5) This is not a support community.
It is not a place for 'how do I?', type questions. If you have any questions regarding the site itself or would like to report a community, please direct them to Lemmy.world Support or email info@lemmy.world. For other questions check our partnered communities list, or use the search function.


6) No US Politics.
Please don't post about current US Politics. If you need to do this, try !politicaldiscussion@lemmy.world or !askusa@discuss.online


Reminder: The terms of service apply here too.

Partnered Communities:

Tech Support

No Stupid Questions

You Should Know

Reddit

Jokes

Ask Ouija


Logo design credit goes to: tubbadu


founded 2 years ago
MODERATORS
 

This can be anything from Hyperspace in Star Wars, Warp Drive in Star Trek, travel through the Warp in Warhammer 40k or anything else.

I've always liked "slow" FTL travel, where going a few light-years still takes a few days or so. I also really like travel through an alternate dimension like in 40k, Event Horizon, Witchspace in Elite Dangerous.

I wanna know your favorite versions, or do you prefer stories that obey the laws of known physics, like the Expanse or Rimworld?

(page 3) 50 comments
sorted by: hot top controversial new old
[–] 5too@lemmy.world 9 points 1 day ago* (last edited 1 day ago) (4 children)

One of the more interesting (and creepy, and appalling!) FTL systems I remember is from Scalzi's The God Engines. Way back in the day The Lord subjugated all other gods, and these gods are now prisoners of human ships, and responsible for moving them through the stars.

I'm fuzzy on the details, but I remember engineering was replaced by a priest caste, and their prayers kept most ship systems running (this Lord is a very active deity!) I also remember that the ship-gods can be very recalcitrant - I think the book opens with the captian having to whip the ship's god into compliance.

load more comments (4 replies)
[–] TeamAssimilation@infosec.pub 18 points 1 day ago

For visuals, Mass effect is great. Giant space guns that shoot spaceships across.

[–] PixelatedSaturn@lemmy.world 29 points 1 day ago (3 children)

Stargate is pretty good. Rotary phone 😀. It's an elegant way to minimize CGI costs for the show. Not only that, the concept that you don't know what's on the other side is also interesting.

[–] Quazatron@lemmy.world 19 points 1 day ago

Chevron 7 locked.

I was just watching that, it's still one of my favorite shows.

[–] Zonetrooper@lemmy.world 12 points 1 day ago (3 children)

Admittedly the "don't know what's on the other side" bit is a little iffy. Sure, they've got that little wheeled robot they use a couple of times, but after a while you'd think they'd do something as simple as "stick a camera on a pole through the gate first."

This is covered in the technobabble of the show. The gate is one way to anything bigger than radio waves, so the camera would see nothing until enough of it had dematerialized for the rest to be sucked through.

load more comments (2 replies)
[–] jaennaet@sopuli.xyz 10 points 1 day ago

They had hyperdrives too but they were pretty boring in comparison.

[–] drmoose@lemmy.world 9 points 1 day ago

I like the system in Asimov's Escape (from the I, Robot series). Spoilers ahead:

Two field engineers experience bizarre, dreamlike disorientation during the jump; afterward Susan Calvin explains the Brain discovered that hyperspace causes a momentary cessation of existence (i.e., you’re effectively disassembled and reassembled), which would panic a robot under the First Law—so the Brain (ship's AI) masked it with funny/benign hallucinations and only reveals it after they return.

I'd imagine that a lot of future experiences led by true AI would be philosophically challenging like this.

[–] infinitevalence@discuss.online 34 points 1 day ago (5 children)

Allister Reynolds: Revelation Space universe. Its not FTL its near light speed with time dilation as an actual plot device. The only hand waving part is the power/device to get up to speed, but everything else is in the realm of physics.

[–] Unleaded8163@fedia.io 9 points 1 day ago

I love his books.

load more comments (4 replies)
[–] clay_pidgin@sh.itjust.works 26 points 1 day ago* (last edited 1 day ago) (3 children)

In the Battletech universe, the Kearny-Fuschida drive jumps a ship instantly up to 30 light years, but then the jumpship needs to deploy a huge solar sail and wait two weeks to charge the capacitors. They also can't jump (safely) except to the low-gravity Lagrange points, and then dropships need to detach and make their way to the planet or whatever.

[–] captain_aggravated@sh.itjust.works 14 points 1 day ago* (last edited 1 day ago)

It's such that, for an individual booking passage, you'll spend a week or more on a dropship, half accelerating, half decelerating towards the jumpship, dock, the "jump" is experienced as an unpleasant and disorienting few seconds, and then your dropship undocks and spends another week in flight to another planet.

It's not the lagrange points; the whole thing about a lagrange point is the significant effects of gravity. It has to be anywhere outside a significant gravity well, typically they use far above/below the ecliptic plane, though if calculated carefully you can get a lot closer into the system.

Or, if you're Jaime Wolf, you can just jump into low orbit over Luthien "Inside the orbit of our closest moon." Happens in the second or third book in the Blood Of Kerensky trilogy.

Oh, and further points for Hyper Pulse Generators. So many sci-fi shows depict "supspace radios" or whatever that just let them communicate at whatever bandwidth they want in real time; Captain Picard can just Skype Starfleet Command whenever he wants. In the Battletech universe, the only real stable currency, the C-Bill, is backed by HPG transmitter time. Bandwidth and speed of communication is built into the setting in a way it just isn't in other franchises.

load more comments (2 replies)
[–] FishFace@lemmy.world 20 points 1 day ago (2 children)

Visually it's gotta be Leviathans' Starburst from Farscape.

That sequence never got old when I was a kid even though they reused it

[–] captain_aggravated@sh.itjust.works 7 points 1 day ago (6 children)

Did Farscape ever depict how any other FTL drive works?

You've got wormholes, that turned out to be as spiritual as they were technological or natural, you've got the Leviathan starburst which is unique to them, no other ship can do anything like starburst because at least once Moya starbursts away and then Crais and/or Scorpius turns to an underling with the Darth Vader brand "You failed me so I shall callously murder you" look on his face. And yet they do have FTL travel. Somehow.

The word "Hetch" is used as a unit of speed, but they BARELY establish that. "Barely hetch two" is apparently quite slow. Also, can Moya travel at FTL speeds without Starburst, or is that just how leviathans move at FTL speeds?

EXTREMELY soft sci-fi series, but it worked.

load more comments (6 replies)
load more comments (1 replies)
[–] Siethron@lemmy.world 9 points 1 day ago

In the Bobibverse (book series) they used SUDAR for FTL. SUDAR was a gravity based communication. I believe this started coming out before the gravity wave discovery and we confirmed(/it became common knowledge) that gravity travels at the speed of light. It was a cool idea though.

[–] CrackedLinuxISO@lemmy.dbzer0.com 23 points 1 day ago* (last edited 1 day ago) (1 children)

I enjoyed reading Ursula Le Guin's stories about instantaneous travel.

The process of instantaneous travel is so bizarre and unexplainable that every crew member experiences it differently. Some people think they haven't gone anywhere, some people think they're on the other side of the universe, and some people think the ship has disintegrated around them.

The only way for the process to succeed is for the entire crew to agree on a shared reality. It has the effect of making FTL travel a dangerous thing that requires training and planning. You can't hop on a ship with random people and expect to survive. Everyone has to train together to really trust each other's perception and experiences.

[–] bunkyprewster@startrek.website 7 points 1 day ago (1 children)

I think it's called Shobie Story. It's part of Fisherman on an Inland Sea.

[–] snoons@lemmy.ca 26 points 1 day ago (8 children)

My favourite is definitely BSG (~~Big Sexy Giant~~ Battlestar Galactica) where the big ships just go 'poof' in a flash of light and suddenly they're somewhere else. Pure kino. :3

load more comments (8 replies)
[–] EndOfLine@lemmy.world 17 points 1 day ago (1 children)

I think it was the Old Man's War series that had a really creative form of FTL travel that played off of the infinite multiverse theory.

Instead of traveling through space, they would jump into a parallel universe were everything was the exact same, except that their desired destination was closer to them and the same group of travelers were also jumping to a different verse at the same time.

It was clever, and also bugged the crap out of me

[–] mycatscool@lemmy.world 11 points 1 day ago (1 children)

Hyperspace in Babylon 5 is pretty cool.

Also in Star Trek TNG when the Traveller uses his mind to go crazy fast.

load more comments (1 replies)
[–] kbal@fedia.io 25 points 1 day ago (1 children)

I like the A Fire Upon The Deep version where Earth is in the "slow zone" but the speed limit gets faster in other regions of space. It makes enough sense that you could easily imagine a universe working that way, at least if you don't know too much about physics.

load more comments (1 replies)
[–] palordrolap@fedia.io 14 points 1 day ago (2 children)

For practicality: Whatever it is that The Nox do in the Stargate TV show. It's not well explained because, well, no other race is advanced enough to understand it. Something about briefly causing two distant points in space to touch. Instantaneous travel to anywhere.

For impracticality: #1 The ring network in one of Stephen Baxter's novels. Kind of like the eponymous rings in the better known Stargate franchise, but the ring source and destination are fixed and transport time between rings is light speed, so you arrive years after you enter. And IIRC, you come out as an approximation of what you were when you went in. A very good approximation, but still an approximation. The advantage is that the journey seems instantaneous to the traveller.

#2 Whichever story has it that travel in hyperspace / subspace turns out to be slower than travel in real space. This may have been a throwaway Internet joke, but it still amuses me.

#3 Stephen King's Jaunt.

[–] RampantParanoia2365@lemmy.world 11 points 1 day ago (2 children)

So in the first Tolan episode, they contact the Nox so they can help the Tolan refugees. The Tolan mention their ftl, and Daniel says he thinks it's like the folding space theory.

Basically like folding a sheet of paper, so the two ends meet, and shooting right through, so when it unfolds, you're instantly on the other side, and the Tolan smiles and says "...No."

I don't recall the Nox ever mentioning FTL, just their invisibility, and they can also form wormholes without dialing.

[–] KatManDoo@sh.itjust.works 2 points 1 day ago

I like you mate have a very nice day <3

load more comments (1 replies)
[–] Capybara@lemmy.ca 9 points 1 day ago

You might like Larry Nivens Known Space books (such as Ringworld, among many others) as it's hyperspace makes most people's minds freak out. Very few people are capable of looking out a window in hyperspace and not going at least a little bit loopy.

It's also implied that Things live in the gravity wells and that's why you need to be far enough away before you make the jump but this isn't really developed much.

[–] Zonetrooper@lemmy.world 11 points 1 day ago

Whatever it is, I'm inclined to like the versions where FTL is a teensy bit dangerous. Not necessarily 40k's "FTL is actual hell and frequently fails in terrible ways", but more... it's risky. It's a mundane risk, maybe. But still, there's that little bit of risk in the background and it needs to be approached carefully...

Like, Babylon 5's hyperspace is an actual place you make trips into, but it's also highly nonlinear, and so it is entirely possible to get lost or stuck if your ship malfunctions. Also, there are living things in there which may not be friendly.

Even Star Wars' Hyperdrives can be dangerous. It doesn't get played up in the stories much, but a malfunctioning or improperly programmed hyperdrive can strand you in deep space, subject you to severe time dilation, or just splat you against a realspace object.

[–] isgleas@lemmy.ml 17 points 1 day ago (1 children)

Ender's sagas adresses not only near light speed travel, but also the relativity on communications between the traveling veasels and "stationary" posts via the ansible

[–] toddestan@lemmy.world 4 points 1 day ago (1 children)

I thought the Ender's game universe was interesting with the instantaneous FTL communication with the ansible, but no FTL travel. They had some tech that could accelerate ships quickly to very near-light speed, which meant you could travel between planets in a few weeks ship-time thanks to time dilation, but years would pass for the people on the planets. So while you could talk with people on other planets instantly, if you wanted to visit them, they'd have to wait decades for you to arrive.

Then later in the books they figured out ...

spoilerthat you can more or less travel FTL instantly to anywhere you want just by thinking really hard about it.

The Conquerors trilogy by Timothy Zahn had the opposite - FTL travel but no FTL communication. Smaller ships could also travel FTL faster, so you had a bunch of small ships running around to different star systems essentially delivering the mail. It's been a while since I read the books, but I don't really remember it playing a big part of the story other than a way to isolate the battlefronts because once the mail service gets shut down by the enemy you have absolutely no idea what's happening outside of your local star system.

[–] isgleas@lemmy.ml 3 points 1 day ago

That is what I said, near light travel, not FTL. Ansible comms where instantaneous (speed of thought iirc), but not when the veasels/ships where in-transit, as they needed to "buffer" the communications somehow, in form of recorded messages. That is why Ender's journeys took thousands of years, where only a lifetime for his siblings on earth.

[–] ColeSloth@discuss.tchncs.de 8 points 1 day ago

The FTL in the game FTL.

It's not really explained or important in the game, but Christ almighty have I put hundreds of hours into that infuriatingly addictive thing; so it must be my favorite FTL.

[–] SolSerkonos@piefed.social 16 points 1 day ago (3 children)

Halo's Slipspace has always been my favorite. It's another dimension where instead of being able to move in four directions, things can move in eleven. This results in travel being faster there than in normal space.

The fun part is that the UNSC and the main antagonists- the Covenant- use the exact same method of FTL travel. The Covenant are just dramatically better at it, to the point of UNSC ships that attempt to run away from the Covenant via slipspace sometimes having the Covenant fleet they were fleeing already there and waiting on them.

[–] BigDaddySlim@lemmy.world 7 points 1 day ago

Early UNSC Shaw-Fujikawa drives were a brute force punch into the other dimension, whereas Covenant adopting old Forerunner tech would slip into Slipspace more elegantly and with better accuracy. This allowed Covenant ships to slip within a single system, where UNSC ships might be within a few hundred thousand kilometers of their intended target and could not realistically attempt inter-system jumps, which I always thought was a cool detail.

Post Halo 3 when the Infinity gets Forerunner Slipspace drives and Forerunner Engineers to help adapt and implement the drives drastically improve Slipspace accuracy and speed was a huge turning point for humanity. Plus the ability to have small drop ship like crafts, Condors, have Slipspace capabilities was huge for ONI ops and smaller team excursions.

God I fucking love Halo lore.

load more comments (2 replies)
[–] zaphod@sopuli.xyz 16 points 1 day ago (1 children)

There's a theory about Even Horizon that it was basically the Warp from Warhammer 40k.

[–] stringere@sh.itjust.works 8 points 1 day ago* (last edited 1 day ago)

The Event Horizon fan theory may not even be a fan theory, and is instead confirmed thanks to screen writer Philip Eisner commenting on Twitter in 207 that “I played the sh*t out of 40K, so it was definitely an influence, conscious or otherwise.” Writers who went on to work at Games Workshop to help shape the universe returned the favor, with an attempt to name drop the ship in one of the game’s official codexes, but the U.K.-based company stopped it from seeing print. Still, it’s a comment straight from the twisted mind behind the film that the classic tabletop miniatures game’s gothic setting had an impact on the film.

https://www.giantfreakinrobot.com/ent/event-horizon-ties-sci-fi-universe.html

[–] RodgeGrabTheCat@sh.itjust.works 10 points 1 day ago* (last edited 1 day ago)

I like the version from BSG.

Andromeda was weird. Able to travel from galaxy to galaxy otherwise they travel at sub-light.

load more comments
view more: ‹ prev next ›