Questions tagged [space-constructs]

For questions regarding artificial structures that exist in space.

Filter by
Sorted by
Tagged with
3 votes
3 answers
169 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 ...
user avatar
  • 7,057
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 ...
user avatar
  • 93
2 votes
4 answers
125 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 ...
user avatar
  • 1,177
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 ...
user avatar
  • 1,177
8 votes
2 answers
547 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, ...
user avatar
1 vote
3 answers
137 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, ...
user avatar
  • 1,177
-3 votes
2 answers
174 views

Possible population levels in a Kardashev Type 2 Scale civilization

Acording to Futuretimeline a type 2 Kardashev society could be achieved around the year 3100 when science is advanced enough to allow the creation of a Dyson Sphere and due to its size it could house ...
user avatar
7 votes
4 answers
142 views

Controlling Air Temperature on a Futuristic Spacestation with Iron Age Technology

The Setting World consists of humans with primitive technology living within an asteroid space station built by their technologically advanced ancestors. A lot of knowledge has been lost, obviously. ...
user avatar
8 votes
1 answer
84 views

Ocean tides on a Banks Orbital

Consider a Banks Orbital, a space station three million kilometers in diameter, rotating once per day for 1g artificial gravity, intermediate in size between a Bishop Ring and a Niven Ring: https://...
user avatar
  • 4,386
38 votes
8 answers
4k views

What would happen to a star if most of its energy were reflected back at it?

For simplicity, lets use our Sun as the star. Next, a dyson sphere is built around it (completely enclosed solid sphere, not a dyson swarm or network, etc.). Handwave how it's built, it's not ...
user avatar
  • 4,005
0 votes
1 answer
90 views

Effects in space on a human standing to the side of the muzzle of a huge rail gun when fired

The setting. Space, the inner asteroid belt. An LNCHR ship is anchored to an asteroid without atmosphere. A LNCHR ship is a ship with two main facilities: A space crane to raise the slugs filled with ...
user avatar
  • 3,063
1 vote
0 answers
101 views

How would the 'sky' look in a Stanford Torus?

I hope this is focused enough: my question boils down to: "How do people living in a Stanford Torus experience the sky?" Context: Operating on the assumption that we're in a fairly typical ...
user avatar
-2 votes
2 answers
80 views

Lift descent time from a Geostationary spacestation (Earth-like planet)

The question is simple. I have an Earth-like planet with a space station. This space station is "anchored" to the surface via space-lift (scifi materials are used to justify this). I wish to ...
user avatar
  • 261
15 votes
9 answers
3k views

What is the safest and most extravagant place for an interstellar emperor to make his palace?

Every evil galactic empire has an emperor’s palace. From the Goa’uld to the Sith Empire to House Harkonnen, every emperor has one extremely lavish but heavily defended structure they call home. My ...
user avatar
  • 1,165
3 votes
2 answers
178 views

How wide can you make an orbital ring?

How wide can you make an orbital ring? This question is simple. The orbital ring is a concept in which a ring encircles the earth (or other celestial body) and revolves around it so that the ...
user avatar
  • 8,617
5 votes
12 answers
461 views

Warfare in a universe with FTL on rather fragile platforms? [closed]

How do you imagine the large picture of space warfare would shape into in a universe with the following characteristics: There is FTL, but it's just available in very large and expensive platforms, ...
user avatar
5 votes
4 answers
179 views

What (natural) phenomenon could cause an earthquake on O'neill cylinder?

There is an O'Neill cylinder about 10,000km long and 10km wide in diameter orbiting a blue giant star. The crew on board have been complaining about the tremors or sometimes a powerful 6.8 magnitude ...
user avatar
  • 46k
6 votes
2 answers
1k views

Help Fix My Space Elevator - Untapered Steel Cable

I think I have made a mistake somewhere in my design of an untapered steel cable space elevator down to Earth. I was building this as a design reference to figure out how much stronger "stronger&...
user avatar
3 votes
1 answer
125 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 ...
user avatar
  • 46k
6 votes
6 answers
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 ...
user avatar
  • 1,286
3 votes
3 answers
175 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 ...
user avatar
  • 11.7k
3 votes
1 answer
162 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 ...
user avatar
3 votes
4 answers
241 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 ...
user avatar
  • 14.4k
5 votes
2 answers
380 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 ...
user avatar
  • 6,006
7 votes
2 answers
110 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 ...
user avatar
6 votes
1 answer
160 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 ...
user avatar
  • 44.3k
2 votes
2 answers
174 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 ...
user avatar
1 vote
1 answer
87 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 ...
user avatar
3 votes
1 answer
172 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 ...
user avatar
2 votes
7 answers
271 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 ...
user avatar
  • 5,586
7 votes
4 answers
387 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 ...
user avatar
  • 7,057
3 votes
5 answers
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' ...
user avatar
6 votes
2 answers
627 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 ...
user avatar
6 votes
4 answers
237 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 ...
user avatar
  • 7,057
4 votes
1 answer
117 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 ...
user avatar
  • 27.3k
6 votes
4 answers
433 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 ...
user avatar
  • 27.3k
1 vote
1 answer
117 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 ...
user avatar
  • 693
-1 votes
4 answers
171 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! - ...
user avatar
  • 579
15 votes
10 answers
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-...
user avatar
9 votes
8 answers
2k views

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 ...
user avatar
-1 votes
3 answers
570 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 ...
user avatar
  • 5,586
1 vote
3 answers
157 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 ...
user avatar
13 votes
9 answers
6k 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 (...
user avatar
1 vote
0 answers
63 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 ...
user avatar
  • 579
1 vote
0 answers
60 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, ...
user avatar
3 votes
1 answer
164 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 ...
user avatar
  • 579
12 votes
7 answers
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 ...
user avatar
  • 2,063
8 votes
7 answers
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. ...
user avatar
11 votes
3 answers
503 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, ...
user avatar
3 votes
2 answers
283 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 ...
user avatar
  • 46k

1
2 3 4 5
8