Questions tagged [space-constructs]

For questions regarding artificial structures that exist in space.

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3
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1answer
103 views

Is using tennis racket effect on O'Neill cylinder to create day night cycle cost efficient?

Imagine a diameter 1000km long O'Neill cylinder orbiting a dwarf star, it acquires most of its energy from the star directly. This space station is designed for research purpose but it has a ...
6
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6answers
2k views

Can mirrors on the moon allow solar panels to operate at night?

Solar panels cannot operate at night. If we put self-adjusting mirrors on the near side of the moon, they could reflect sunlight back to the dark Earth, allowing solar panels to operate at night. How ...
3
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3answers
163 views

Would spacecraft suffer from fevers?

Spacecrafts produce a lot of heat, which must go somewhere if the inhabitants don't want to die. And in space, the only way to get rid of the heat is to radiate it away One way of achieving this would ...
3
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1answer
106 views

What would weather be like in an O'Neill Cylinder with windows?

I've got an O'Neill Cylinder that's virtually identical to Gerard O'Neill's original design, only scaled up a bit to allow for more surface area. The cylinder is divided into 6 sections, 3 windows and ...
3
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4answers
191 views

How to Create the Galactic Habitable Zone

Our galaxy consists of a wide number of stars, anywhere from 100 to 400 billion stars, with just as many number of what are known as "habitable zones", in which liquid surface water is ...
2
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2answers
251 views

What will real space vehicles look like in the future?

Most sci-fi today is imho unimaginative and unrealistic when it comes to future orbital and interplanetary vessel design. What will spaceships and habitats look like when we build them in zero-g using ...
7
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2answers
101 views

How close can a launch pad be to a lunar base?

This is for a base that has been built up into a big, complex place. For the radiation safety of long-term residents, the walls are very thick. There are windows, that are quite large. They have quite ...
6
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1answer
143 views

O'Neill Cylinder atmosphere on Moving "Day"

In short what effect would thrust induced pseudo-gravity have on the atmosphere of a sealed cylindrical habitat that was already generating spin induced pseudo-gravity? Assume that the thrust is along ...
2
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2answers
169 views

Could humans survive in the solar system if the earth was destroyed? [closed]

In this setting humans have settled all around the solar system but the bulk of the population is still in earth however an asteroid wiped out all life. Now can humans sustain themselves with whatever ...
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1answer
75 views

What orbital structures could be raised around a gas giant's moon?

My narrative project takes place on an habitable moon (0.7 earth masses) orbiting a gas giant 3 times the mass of jupiter at a distance of about 1003000 kms and is in a 5:2 spin-orbit resonance with ...
3
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1answer
160 views

Could a space faring civilization extract valuable resources from a gas giant?

I have been developing an advanced civilization inhabiting a world orbiting a gas giant about 3 times the mass of jupiter, the conditions have already been tuned to allow life to develop over its ...
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7answers
261 views

A big primitive computer in orbit, very big, powerful but old technologies from 80's, V2.0 on-topic revamp

I have to point out, it is an attempt to make this on-topic, all thanks to @JBH, so tell us in the comments how well we did. the old one is history now. 50 years ago my grandfather created humanity's ...
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4answers
378 views

How best to arrange a network of light-focusing satellites closely orbiting the sun

It is the not-too-distant future in an alternate timeline, and humanity has tripled-down on solar power. We built a network of solar focusing satellites that orbit Sol at close range (so they can ...
3
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5answers
1k views

Why does my arcology let light in, when it was originally a sleeper ship

In my story the protagonist lives in an arcology, but this is not just any arcology. Over a 100 years ago, a global war fought between those who sided with a massively distributed and rather 'insane' ...
6
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2answers
609 views

How would a dirty space station with no artificial gravity look?

Just a weird question that popped in my head, but since the only real space station in existence always keeps itself squeaky clean, I wonder how one that doesn't have cleanliness as high priority ...
6
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4answers
214 views

how would a semi-permanent colony orbiting Jupiter protect itself from radiation?

It seems like the Jupiter system is especially attractive in terms of natural resources, and while I assume the majority of any extraction labor will be performed by machines, I also figure there will ...
4
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1answer
100 views

Dyson swarm and Coronal mass ejections - generating electricity

This is the second of two questions. Same introduction. A civilisation on Earth has just begun expanding with a Dyson swarm, which is a Dyson sphere but made with many satellites, to prevent ...
6
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4answers
300 views

How would a civilization protect a Dyson swarm from solar flares and coronal mass ejections?

This is the first of two questions. Same introduction. A civilization on Earth has just begun expanding with a Dyson swarm, which is a Dyson sphere but made with many satellites, to prevent structural ...
1
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1answer
101 views

Hypothetical Material used to construct shell for (this) shell world

Hypothetical materials used to construct (this) shell world As there are multiple definitions for shell world, this needs some clarification. In this case, a shell world refers to a body with the ...
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4answers
169 views

How much engineered "sand" I would need to build an Orbital Tower that reaches the ISS?

Well, I do know that there are questions about space towers that have already been asnwered, however, none of them with today's technology, such as engineered sand. "Sand Castle Holds Up A Car! - ...
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10answers
2k views

What will it take to get 1,000,000 people living in space habitats?

Sure, land is expensive here in downtown Metropolis, but lots of cheap land to build on even a few dozen miles out, never mind in the backwoods, or in flyover agricultural lands that rich, self-...
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8answers
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How long will it take for the off-World population to exceed Earth's population?

As I type these words in March 2021, there are numerous private companies developing engineering solutions for reliable, high-capacity and relatively cheap access to space. At this point in time, it ...
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3answers
538 views

A big primitive computer in orbit, very big, powerfull but old technologies from 80's, what is a potential fiat money value for its use? [closed]

This question about the economy of technological solution, there 800 of such on wb Was looking for materials for the answer to the question Semiconductor foundries are a thing of the past. Rebuild the ...
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3answers
142 views

Kessler Syndrome, but with extremely small particles

Congratulations! You're the new leader of the future UN(Unified Earth Country governing body), and you want to push for space travel for all. But at this point(in the futures), centuries of space ...
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9answers
5k views

I want to build a weapon targeting Interstellar distances. How viable are railguns?

I am in a timeline which would be tens of thousands of years advanced from yours, and humans have colonized a significant portion of the stellar neighborhood, multiple thousand light-years across (...
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0answers
58 views

Would it be possible to mine the metallic hydrogen from jupiter with our current technology? [duplicate]

Simply put, metallic hydrogen is obtained at absurd atmospheric pressures, becoming a stable liquid with very interesting properties. As a super conductor or simply the most efficient fuel that ...
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0answers
56 views

Space Hotel - Amenities [closed]

What luxury amenities could a hotel in space offer (that obviously weren't available on Earth) that patrons could experience within the hotel or within their rooms for the right price? Specifically, ...
3
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1answer
161 views

How much would take and cost to construct a building/tower that reaches space? (with todays technology) [duplicate]

I am aware that there is a concept called "space elevator" that would be a much cheaper and more efficient option of reaching space with a construction (even though we don't have the ...
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7answers
6k views

Could I build a stairway to Heaven?

There’s a song called "Stairway to Heaven". I thought I could write a story with it as inspiration. Could I build a stairway to Heaven? It must be possible to walk up the stairway. It should ...
8
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7answers
1k views

Most efficient and feasible non-rocket spacelaunch methods moving into the future?

I'm writing a novel that takes place in a future where we've just begun to go interstellar, but the costs are still quite high and the purpose is definitely scientific study, exploration, and so on. ...
11
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3answers
478 views

How much of the sun's light would have to be blocked for the Earth to become uninhabitable?

For context: I'm writing a story where the main antagonist is an empire that builds Dyson swarms around every star they can get their hands on. The protagonist lives on a planet around one such star, ...
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2answers
280 views

How do you counter the wobble of spinning ring world filled with ocean? [closed]

I imagine a bicycle spoke rim scaled up a thousand time orbiting a star, the side of rim facing the star will experience more pull therefore more water... assuming its spin axis is along the orbital ...
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1answer
172 views

Does my “Bombardment cruiser” make any sense?

In my universe 500 to 700 years the navy is deployed to eliminate the cult stronghold on the planet of OgallyBoogally. The bunker is a kilometer below the surface and covered by lots of armor and ...
2
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1answer
166 views

Simulated warship quarters?

This universe is 500 to 700 years in the future. Navy vessels are a kilometer long cylinder with rotating hab rings. The main cylinder is basically a railgun, reactors and a bunch a nuclear missiles. ...
5
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3answers
276 views

How would you design a space station able to ricochet off railgun bullets?

In space somewhen in the future there's need to build a space station able to sustain heavy railgun fire. How would you design it? I was thinking about building something similar to a 17th century ...
3
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0answers
79 views

Applications of Chameleon Particles: Space Constructs [closed]

Dark Energy is a very strange force, and one of the theorised carriers of this force is the Chameleon Particle. To describe its effects, due to its non-linear self-interaction, it has a variable level ...
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2answers
130 views

When can I have my megastructures? [closed]

I'm building a science fiction setting. The present is just like ours. Some time in the middle of the 21st century, humanity invents technology that allows travel to nearby stars within months. By the ...
3
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1answer
113 views

Is the way I've spun up an asteroid structurally realistic?

In my world, I have an asteroid station that was spun up to produce artificial gravity. Characteristics: The asteroid is treated as cylindrical, with a radius of 1.5km and a length of 5km. Assuming a ...
2
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2answers
239 views

Would it be possible to have an O'Neil cylinder used as a water "world" nature preserve?

Would it be possible to have an O'Neil cylinder large enough to house actual oceans and creatures like whales? What might the energy requirements be to construct this?
6
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2answers
246 views

Effect of a destroyed orbital ring falling down on the planet [duplicate]

I'm working on a story where an orbital ring situated in LEO above the equator of an earth-like planet is destroyed which is a calamity for the species that used it. The ring is essential for them and ...
4
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1answer
226 views

Space station design for long-term safety and durability

Notes: I am not using the hard-science tag for now because I do not want to restrict your imagination. However, I will add it if I get mostly speculative answers with no support in actual science. ...
22
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11answers
5k views

How hard would it be to find something in the void between solar systems? [closed]

So, assume that there's a superstructure roughly the size of Pluto (~1,475 miles in diameter is the figure I found) that an organization doesn't want to be easy to find. Hiding it in the void between ...
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13answers
5k views

Is a space station using a Dyson sphere like structure to power itself invincible? [closed]

Let's assume we have this super advanced civilization that actually goes around making Dyson spheres around stars. The purpose of this is to capture all the energy of the star and be a hub of the ...
4
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3answers
160 views

Would a laser relay work better on the surface of an airless body or in orbit?

Background: In the early 22nd century, a laser station has been established on Uranus' moon, Cordelia to shoot chunks of frozen deuterium into the inner solar system for fusion fuel. However, the ...
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9answers
5k views

What is the largest 'hollow' space structure that can be created?

After reading the following question about anti-gravity, I wondered what the largest hollow structure you can make in space is. None of the questions about hollow earth seem to answer this. To put it ...
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3answers
234 views

The most efficient spaceport

In my works of worldbuiling I have constantly come across the problem, How to depict and create the most efficient spaceport possible for an interstellar, super advanced, space fairing species. ...
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5answers
307 views

Would it be possible to create a planet sized space station?

Would it be possible to create a planet sized space station, with technology levels close to Star Trek TNG, if so, how long would it take to make it? Think the Death Star and starkiller based from ...
0
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2answers
159 views

Why would someone purposefully cause a nuclear apocalypse? [closed]

In an alternate future, the cold war has never fully ended, as the soviet union never collapsed, but the two super powers have decided to work together in space, resulting in the construction of a ...
4
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3answers
210 views

Would O'Neill cylinders experience thunderstorms, if not how would you generate/simulate one?

ASSUMPTIONS The OC in question is a standard paired OC similar in size to Island 3 5 miles (8.0 km) in diameter and 20 miles (32 km) long. It is a temperate biome akin to southern France with some ...
7
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7answers
3k views

What would combat look like inside an O'Neill Cylinder?

Problem If you were attempting to take over an O'Neill Cylinder without destroying it or the majority of its inhabitants/ecology how would you go about it? What benefits or detriments to an attacking ...

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