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Questions tagged [space-constructs]

For questions regarding artificial structures that exist in space.

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7 votes
5 answers
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Could a 200m diameter asteroid be put into a graveyard orbit and not be noticed by people on the ground?

So, there’s a secret space station—code named Anvil—that is run by a secret military organization that was formed to provide a rapid response team against national/global threats. They launched a ...
Blue Skin and Glowing Red Eyes's user avatar
4 votes
2 answers
568 views

Calculating Living Area on a Concentric Shellworld

I'm not sure if I should be asking this here on on the Maths Stack Exchange, because this is a sort of mathematics problem but here goes: A civilization lives on multiple concentric shellworlds, each ...
Rexotec's user avatar
  • 735
2 votes
1 answer
750 views

Can an Alcubierre drive be built by starlifting?

I am setting up a very futuristic world for a sci-fi story, where having FTL tech would be very practical. For a bit of context, here is what I am imagining: It is a type 3.2 - 3.3 civilisation, where ...
The Rocket fan's user avatar
2 votes
0 answers
75 views

Moving people and goods between spinning and non-spinning parts of a space station [closed]

I'm thinking of three possibilities - all of which have the user experience of elevators and don't require space suits. involves a programmed pod that moves a short distance in space between docking ...
dsanford0's user avatar
-1 votes
1 answer
93 views

Advantages of locations in the solar system for a space station [closed]

In my story, a hostile alien force has arrived in our solar system and parked a station to keep us in line. They've mined the near-sun planets to build a Dyson Swarm, something they do fairly ...
Beyla's user avatar
  • 7
4 votes
2 answers
153 views

How to increase the structural integrity of comets (for the purpose of moving them)?

Suppose there is a comet of radius 500m made of mostly ice, with the rest being rock, dust, and other frozen gases. The comet is being hollowed out in order to use the water as reaction mass (giving ...
theogonzalles's user avatar
8 votes
7 answers
2k views

Expanding a modular space-station for 100 years

The Mir, ISS, Tiangong, Skylab, the numerous Salyut-missions...Space-stations are one of the most impressive and interesting feats of modern engineering, which in my opinion, makes it even more tragic ...
NimRad's user avatar
  • 1,222
6 votes
4 answers
1k views

Possibility of solar powered space stations around a red dwarf

I have an earth-like world orbiting an M7 red dwarf on the outer edge of the habitable zone(0.0443AU). Since red dwarfs emit more infrared light than visible light, solar panels would probably not be ...
Fox Studios's user avatar
1 vote
0 answers
118 views

Motivations for creating "brainstar" bioplanets [closed]

I define a "bioplanet" as any single organism that completely covers the surface of a planet. In my scenario, humans pass Kardashev Type I status and build a Matrioshka brain around the core ...
Strava Ostetnis's user avatar
6 votes
5 answers
4k views

Artificially-created diamond 'windows' for spacecraft

In the past I've entertained the notion of space stations and spaceships having window panes or transparent viewing surfaces made from laboratory-created diamonds, but a recent answer to a different ...
king of panes's user avatar
14 votes
9 answers
4k views

How to make a Stanford torus start rotating?

The notion of using the so called Stanford torus to generate artificial gravity is well known, but once you build the mega-structure how do you make it start rotating? Do you rotate somehow from the ...
Vivaan Daga's user avatar
7 votes
1 answer
443 views

Zero energy transfer between Earth and Moon with space elevators

I'm asking this out of curiosity, mostly as a response to Space elevator from Earth to Moon with multiple temporary anchors and some of the comments and answers there. Suppose you're able to build ...
N. Virgo's user avatar
  • 6,025
8 votes
8 answers
3k views

Stopping Milkdromeda, for Aesthetic Reasons

Basically, there is a human civilization controlling the milky-way and an alien civilization controlling Andromeda. They are communicating and have decided, for some reason, that, though the ...
skout's user avatar
  • 2,058
8 votes
5 answers
3k views

Practicality of building a space station in the tail of a comet

In my novel, I want to feature a large (>5km) centrifuge space station that was built on/into a comet, and is in the comet’s tail whenever it passes close to the sun. It is home to many criminal ...
Whey_Isolate's user avatar
  • 1,347
4 votes
1 answer
128 views

Aeroponic farming in a gas giant

In the setting of my projects there is a gas giant (with a mass of about 3 jupiters) that migrated within the habitable zone, as such it's outer atmosphere would feature plenty of water wapor and have ...
JuimyTheHyena's user avatar
5 votes
6 answers
3k views

Is this a viable theoretical method of fast interplanetary space travel?

Let's say in the future humanity has traveled to all parts of the solar system, but they want to be able to travel between planets faster. In pursuit of this, they create massive space probes with ...
SlowlySwift's user avatar
2 votes
1 answer
194 views

dyson shell world, how do you create artificial gravity so people can stand on the inside of the shell?

one of the ideas I had is to make the Dyson shell a series of bands(made from impossible material with extreme tensile strength) and then spin these bands at different speeds, with the "land ...
koi's user avatar
  • 431
12 votes
8 answers
3k views

Minimising the environmental effects of my dyson brain

Many centuries from now, a race of advanced AI who now rule humanity, but who are aware that they themselves are leaderless, begin the construction of a huge dyson-sphere fuelled computer brain to ...
user98816's user avatar
  • 8,657
2 votes
3 answers
233 views

What is the minimum size for an “open” space habitat?

In my science-fiction universe, rotating space habitats are widespread, and range a great deal in size. However, all fit into one of into 2 classes: “closed” habitats, which are too small to retain an ...
user98816's user avatar
  • 8,657
3 votes
2 answers
147 views

How can I bring down a local space station network without destroying the station itself?

My characters are on a space station trying to bring in the bad guy. To do this, they need to bring down the local station network, so communications on the station itself are impossible. (External ...
MajorTom's user avatar
  • 1,456
5 votes
4 answers
3k views

How long can a shattered Dyson Ring support life?

Now I recently had an idea for a setting and villain backstory and thought might as well get it vetted. Once, there was a mighty Empire that had conquered its home system and converted most of the ...
Jacob Badger's user avatar
  • 2,333
9 votes
6 answers
2k views

What happens at the hub/core of a rotating space station?

My setting is a standard rotating ring space station. I want some action to happen in the core, specifically for the hero to take down a "hypercom" system that is housed there. I'm trying to ...
MajorTom's user avatar
  • 1,456
3 votes
2 answers
260 views

Could an object exist at the barycentre of two stars

Returning to the powerful clarkean civilisation in this question What compounds could be used to dye a gas giant the colour of a rainbow? These same artistically inclined omnipotent beings have ...
user98816's user avatar
  • 8,657
2 votes
3 answers
489 views

Can you destroy a dyson swarm?

The Swarm Let's suppose we have a dyson swarm with an orbital trajectory analogous to the star-link constellation over earth, although only over a relatively small belt (lets say about 20 degrees from ...
Sam Kitsune's user avatar
  • 1,994
3 votes
3 answers
188 views

Planetesimal Habitation Grav-Train?

The Ring Let's say, for the sake of argument, we have a small, sort-of-heavy moon, with little geological activity, orbiting a gas giant. Let's take Ganymede. It has around 0.12Gs of surface gravity. ...
Sam Kitsune's user avatar
  • 1,994
7 votes
4 answers
995 views

Would a rotating habitat work on the surface of a moon?

While we hear a lot about rotating habitats as a space structure, I happen to know there are a large number of small worlds and moons out there cursed with low gravity, which has a similar effect to ...
user98816's user avatar
  • 8,657
4 votes
2 answers
244 views

How would a basic space station of this design work?

For my book, I need a simple, basic layout to work with for a space station. I am using a typical spinning cylindrical design, a core in the center, a number of levels surrounding the core (in my case ...
MajorTom's user avatar
  • 1,456
6 votes
5 answers
1k views

Why would 1/5 of earthlings prefer to live in orbit rather than on the surface? [closed]

The Great Depression (2030 - 2050) wiped out 2/3 of humanity, buried nation states and forced survivors to take concepts like democracy, sustainability and the environment really seriously. The ...
Rodolfo Penteado's user avatar
3 votes
2 answers
375 views

How Can We Illuminate a Bishop Ring?

A Bishop ring is a space habitat, in my project about 100 km long and with huge walls 10 km high to keep the atmosphere in. The ring rotates about once every 20 minutes to simulate 1 G, and is built ...
user98816's user avatar
  • 8,657
3 votes
2 answers
240 views

Hot Jupiter L2 Station! Reasons to build, and challenges

I'm working on a somewhat* hard scifi story set in a solar system that contains a hot jupiter. Frankly building a large station in the shade (?) of the L2 point of the hot jupiter sounds metal, and I'...
Wavedash's user avatar
  • 357
4 votes
5 answers
259 views

How to make a good landing pad for a start-up colony

Due to the expansion of humanity into the stars, landing pads have popped up on every planet with even a remote resemblance of a permanent human presence, whether they start with a dozen or a thousand ...
redfrogcrab's user avatar
  • 1,356
3 votes
2 answers
145 views

Could ferrofluids give humans magnetic properties? (Part 2 of Magnetic Gravity Series)

In my previous question (Could magnetism work in place of gravity for large bases in space?), @JBH brought up that ferrofluids in the diet of people on these stations could keep them magnetically ...
Jobah_HigherMind's user avatar
4 votes
4 answers
264 views

How can the neutron star factory make heavy elements?

My Primordial galactic empire is facing a huge deficit of heavy elements. So I decided to make a neutron-star factory to make heavy elements like gold and lead See that purplish thing in the center ...
Alastor's user avatar
  • 3,422
0 votes
1 answer
81 views

What's the best way to construct a space-based sun shield large enough to put an entire city in shadow?

I've done some searching and found some interesting links (1. How many spaceships would it take to block the Sun from the daylight side of the Earth? and 2. https://www.quora.com/Does-the-...
Jae Dee's user avatar
  • 21
8 votes
3 answers
168 views

Would convection cycles happen in my water-filled space station?

Imagine a space station orbiting a star. The station is not orbiting a planet. The station has cylinder shape and is orienting its side to the sunlight. The station is rotating just like any O'Neil ...
Duncan Drake's user avatar
  • 3,830
13 votes
23 answers
4k views

Aside from fueling, how would a future space station generate revenue and provide value to both the stationers and visitors?

You have an independent space station, it's in a place that is convenient as a jump point for space ships, so it gets visited. What makes a station like that valuable other than the obvious fuel and R&...
MajorTom's user avatar
  • 1,456
2 votes
4 answers
169 views

Is it more efficient to launch a spaceplane from a space elevator to a destination on the planet, or to simply fly the plane through the atmosphere? [closed]

Suppose you have a planet that needs to send and receive cargo from a space elevator at the equator. Due to various environmental factors, surface-based transportation is unviable so all cargo needs ...
Adam Kabbeke's user avatar
  • 1,973
4 votes
7 answers
2k views

Generating gravity

how would I generate gravity in an orbital station without spinning in a really fast circle or making it as big as a planet, or would I have to cut my losses and just moon-base my idea (I'm trying not ...
erro50282069's user avatar
10 votes
17 answers
2k views

How might derelict space ships/stations be only partially salvageable?

My setting is a fantasy where the average space-trekker subsides on scrapping derelict ships from a distant golden age in the past to maintain their own, with only the corporate rich being able to ...
Drew's user avatar
  • 998
4 votes
3 answers
278 views

What kind of construction material would an advanced intergalactic civilization use to build megastructures?

In my novel, an alien species whose name is temporarily “Alphas” is a Kardashev Type II Civilization and has an entire galaxy under their control. My novel focuses on the interaction between the ...
Sleeping Dragon's user avatar
5 votes
1 answer
201 views

Space elevator counterweight station keeping

I working on a story, and there is a space elevator. I know that moon and sun have a gravitational effect on bodies in orbit. And if a heavy asteroid was used for counterweight, wouldn't it require a ...
J.Krivak's user avatar
7 votes
7 answers
3k views

Is it possible to make a self repairing Whipple-shield that doesn't loose atoms to the environment?

I am building a space station that is supposed to last until the heat death of the universe. This space-station has access to practically an infinite amount of electricity, but since it has no active ...
Postlim Fort's user avatar
  • 1,609
8 votes
8 answers
4k views

Quantum supercomputers in orbit?

I have been wondering if it would be a good idea to exploit the natural coldness of space to create the conditions needed for quantum computation at a large scale. The average temperature of space is ...
JuimyTheHyena's user avatar
6 votes
15 answers
3k views

Is there any practical reason to keep a primitive civilization on an artificial habitat

A planet with an early civilization (Middle age like) is doomed to be destroyed by an unstoppable event. So an advanced civilization decides to do a planetary evacuation to save the species and their ...
spaceamoeba1010's user avatar
4 votes
3 answers
228 views

What's the largest population we could sustain indefinitely on a distant space station?

Imagine that humans put a space station in orbit around something further than 0.5 AU from Earth. So: not Earth, not the Moon, none of our Lagrange points -- none of the "easy" spots. The ...
Tom's user avatar
  • 15.3k
9 votes
4 answers
2k views

Would a hollowed out world be mechanically stable?

I am working on a universe where humanity has expanded across the stars. Humanity has access to a Dyson-Sphere-like technology level (1). The Capital is not the Earth anymore but Mercury. To build ...
Elyo's user avatar
  • 313
4 votes
4 answers
227 views

Why would a bio-mechanical Dyson sphere need to abduct and subsume an entire sentient species every 30-to-50 years?

THE SPHERE Up in space, there is this massive Dyson sphere, with a radius only slightly smaller than the earth's moon. It's made up of a creepy fusion of organic matter and mechanical machinery and is ...
Brinstar77's user avatar
  • 1,477
11 votes
7 answers
2k views

Evacuating earth in favor of a off-world habitat: Just how many people can be saved?

In 2024, NASA detects a pair of planetoids, each the size of the earth's moon, careening towards our solar system. The good news is that they're set to enter earth's orbit without any collisions (how ...
Brinstar77's user avatar
  • 1,477
8 votes
2 answers
760 views

How would a sky with extreme kessler syndome look like?

A few decades ago the Third World War destroyed Earth. Space infrastructure was considered a priority target by both sides. Orbital space was in the years before the war was filled with skyhooks, ...
TheDyingOfLight's user avatar
1 vote
3 answers
182 views

How might a dragon escape from these advanced humans? [closed]

THE DRAGONS When standing on all fours, a typical full-grown dragon is about 3 times as tall as a human. They are quadrupedal with four legs, opposable thumbs on the front legs, and two or four wings, ...
Brinstar77's user avatar
  • 1,477

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