Questions tagged [space-constructs]

For questions regarding artificial structures that exist in space.

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1answer
23 views

Could I build a stairway to Heaven?

So there’s this song called Stairway to Heaven. I was thinking I should write a story. Soooo... The stairway must be able to be walked up. It should be standard size. How feasible is making a stairway ...
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. ...
12
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3answers
400 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
275 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 ...
2
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1answer
153 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
121 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
239 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
77 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
114 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
101 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
179 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
209 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
148 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 ...
10
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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
151 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 ...
2
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3answers
209 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. ...
1
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5answers
268 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
139 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
178 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
2k 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 ...
3
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1answer
107 views

How to redistribute weight on an O'Neill Cylinder? [duplicate]

Problem With a rotating cylinder, applying weight to one side and not the other will cause it to rotate off axis and give it a 'wobble' likely causing undesired gravitational effects. Now clearly ...
2
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4answers
169 views

How long would it take to make three hundred spaceships and an orbital defense system? [closed]

I'm about halfway through a story I'm writing, where aliens invade, beat us up, one spaceship blows them all up, etc, etc, and everyone lives happily ever after. Except they don't. So after they chase ...
7
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4answers
239 views

Counterbalancing a Ringworld so it doesn't explode

Ringworlds are a bit of a SciFi staple but as they're commonly portrayed, the large ones have a major problem... they'd, well... explode if they were built out of materials that actually existed. This,...
4
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4answers
241 views

How to adapt the Royal and Ancient Game to Zero-G?

Golf depends on friction, which eventually stops a rolling ball. Air friction seems to not be enough for a golf course that consists of 18 holes with a total length of 1-2 kilometers. This is not the ...
2
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1answer
77 views

Weather forecast for colossal O'Neill cylinders?

I think we can predict with great accuracy what's the weather going to be in a small O'Neill cylinder since we get to control the humidity and air flows, etc but then a tiny variation in temperature ...
11
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3answers
1k views

How do oceans in an O'Neill Cylinder replenish dissolved oxygen?

I am concerned that the centrifugal force will draw out all the dissolved gases from the ocean in a colossal O'Neill Cylinder in the same way blood centrifuges do in lab. Fishes and most marine life ...
9
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3answers
206 views

Can various human-like aliens live together on a space station with a common atmosphere?

My idea is to build a universe with various alien species. There are dozens of different species and every species evolved differently on a different planet. The problem arises when they want to meet ...
8
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4answers
2k views

Which type of star would be best used for a Shkadov thruster to reach Andromeda as soon as possible?

I had Originally thought of using Nicoll-Dyson beams to propel probes and small ships from the Milky Way to as many galaxies as they can reach to turn stars in those galaxies into Shkadov thrusters to ...
5
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3answers
149 views

Could rotating “sub-cylinders” work on an O'Neill cylinder?

I'm working on an Alien-esque pseudo-cyberpunk space station. My idea for the station was a classic O'Neill cylinder with smaller "sub-cylinders" at 90 degree angles along the sides, each ...
5
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5answers
263 views

What method would an average human use to move in one-tenth of earth's gravity with no prior training?

You are standing near a wall in an enclosed space of 50m(L) x 50m(W) x 3m(H) at floor level with 0.1G gravity and earth normal atmoshere. You are of average height and mass. You are suffering from ...
6
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4answers
269 views

Space station scenario feasibility

I have settings with orbital colonies around the earth. First off my idea is, if it is not profitable we would not fund it en masse. Therefore I came up with the idea that in the future we discovered ...
0
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2answers
74 views

What new types of environments are possible on an intelligently designed habitat? [closed]

Humans have taken the stars and are capable of building pretty much anything they want(but the laws of physics are still the same), and a group of them decide they want to make a habitat with a ...
2
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2answers
114 views

What is the force of impact for a failing space elevator given the following conditions?

The local sapient species on a relatively Earthlike planet has constructed a space elevator. It is anchored along the equator. Due to unfortunate circumstances (and potentially divine intervention) ...
4
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2answers
188 views

Would it be possible to build numerous spaceships that could transport 10 million people in the late 2100's?

The crafts would have to contain large farms in order to sustain the immense amount of people, and they'd obviously have to be large and spacious to have good living conditions. I did some research, ...
3
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1answer
253 views

Science of Green Lantern and solid light constructs

Many know that the Lantern Corps of DC Comics are capable of constructing objects of any shape or size out of hard light using their power ring fueled by their emotions. However, I'm wondering what ...
6
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11answers
512 views

Building a spaceship alone in the wilderness

I am currently working on a character backstory for somebody whose fictional character gets sent back in time an era before his species existed (essentially to bronze-age times or even earlier, it's ...
2
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3answers
148 views

Is it theoretically possible to design wormhole gates for space travel? [closed]

In the story I am writing I would like space travel to be as realistic as possible. Wormholes are a theoretical possibility but they are incredibly unstable as well as difficult to manage, but they ...
5
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1answer
130 views

Can multiple space habitats be joined by tubes?

I wanted to create an extremely large space city which will be made up of many different large space habitats of ringed and cylindrical varieties. Although each habitat will contain its own city or ...
6
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6answers
329 views

How to allow a cylindrical habitat (O'Neill or McKendree) to radiate heat to space?

Background I am trying to find a design for a cylindrical habitat that would allow the enclosed cylinder to radiate heat out to space as does the Earth without using mirrors and windows. Problem In my ...
-2
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1answer
93 views

What’s the energy required to traverse through dimensions

Say in the future, humanity has developed technology to the point that it allows them to traverse through other universe, each universe having something either drastically different or not so ...
4
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2answers
265 views

How does one calculate the diameter of a 'space fountain'?

I need to know how wide the diameter of a space fountain's* particle stream is in relation to the mass it's trying to support. It would have to lift its mass at least 40000 kilometers. The vacuum ...
1
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1answer
241 views

How massive can a structure get on the inside of a Mckendree cylinder?

Background A McKendree cylinder is a rotating cylindrical space habitat comparable to the more well known O'Neill model. It was proposed by NASA engineer Thomas McKendree in 2000 as an update of O'...
5
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3answers
234 views

Low gravity space shipyard vs micro gravity shipyard

If you had a device, similar to a Stargate, but that allowed seamless two way transfer, and that could be moved (You could essentially strap a rocket on it, and fuel it from Earth), you could just ...
1
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2answers
124 views

Orbital tether snap like a rubber band?

Let’s say a few centuries in the future, we have captured an asteroid into orbit and built a space station out of its material. The station is a ring that encircles the equator in Low Earth Orbit, ...
3
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2answers
226 views

How do you get steel outside Earth?

I'm looking for a more economical and efficient method of making steel for my project Death Star Unlimited, a mega infrastructure orbiting Mars with a mass of 500,000,000 metric ton give or take 1%. ...
4
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2answers
183 views

Space elevator off Europa without running into a nearby moon?

Would it be possible to build a space elevator off Europa? (The space elevator would only be for the purpose of getting items out of Europa's gravity well relative to Jupiter. At that point, the ...
26
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18answers
7k views

What measures to put in place to reduce airlock being used for murder?

Consider a futuristic world where space travel and colonisation of the solar system's planets is an everyday reality. In space vessels, the airlocks are used quite often to execute people. It's fairly ...
4
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6answers
712 views

Artificial lighting for a closed O'Neill cylinder

I am struggling to picture what placement of artificial lighting I should use for my O'Neill cylinder design for the daylight hours, a strip light along the centre of the cylinder would obstruct the ...

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