Questions tagged [dyson-spheres]

For questions about space constructs created by advanced civilizations around stars to better harvest solar power.

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What reason would an alien civilization have for building a Dyson Sphere (or Swarm) if cheap Nuclear fusion is available?

The Dyson Dilemma states that every civilization of a great enough development stage will want to capture all of the energy from its home star and surround it with a Dyson Swarm that uses solar panels ...
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What is a Dyson Sphere around a planet called?

Imagine that we start expanding the International Space Station until it becomes a ring encircling the whole Earth. Then we started widening the ring until it met at both poles, forming an orbital ...
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How and when could a Dyson sphere civilization figure out the shape and size of their sphere?

Kinda inspired by the non-disappearing ship question, but I actually asked this particular question on an unrelated forum a few years ago. Reposting it here (well, paraphrasing, really, since I don't ...
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What to do with all the heat in a Dyson Sphere?

In the wake of this, my answer to this question about where to put a Dyson Sphere an apparent issue came up. And it needs some good resolution: What are we going to do with all that heat the system ...
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Would building a Dyson sphere inside the Earth's orbit render our planet uninhabitable?

The year is 3030 and the robots (who have replaced humanity as the dominant intelligent beings on Earth) have decided to build a Dyson sphere around the sun. They're planning on disassembling Venus ...
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Brown Dwarves: Dyson Spheres in disguise?

Would a Dyson sphere make a red dwarf appear to be a Brown Dwarf? Would it disguise a star enough to misidentify it what size it is? I'm just wondering if it could be possible that some Dyson ...
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Would a Type 2 Kardashev Civilization really build a Dyson Sphere around their own sun?

We are currently estimated to be about 0.7 on the Kardashev Scale. I am interested in the second level of the Kardashev Scale: Type II "A civilization capable of harnessing the energy ...
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How could a Dyson Sphere be destroyed through natural causes?

I would like to destroy a Dyson Sphere so it leaves big chunks of scrap metal with no habitable zones left, but still with enough structure to hold building-sized blocks. The destruction shouldn't be ...
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Inhabiting Mars versus going straight for a Dyson swarm

My question is as follows - let's assume our objective function is to have as many humans as possible living outside the confines of the Earth as soon as possible. For this, we need to provide those ...
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When and how would a Dyson sphere civilization in a fantasy setting learn size and shape of the sphere?

Working with this question but with more of a fantasy bent, I was wondering how long it would take a civilization to learn/realize that they lived on the inside of a Dyson sphere (or hollow earth or ...
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Is A Solar Dyson Sphere Habitable?

OK, so we've reached the Clarkian "sufficiently advanced technology" stage, and we can hoover up all the mass in solar system and convert it to something with the tensile strength needed to build a ...
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How much does the ecosphere weigh?

So, we've gone off to another star system and decided to build a Dyson bubble--a continuous statite, supported by radiation pressure, surrounding a star--with a surface gravity of 1g to live on. Now, ...
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Where do you put a photosynthetic Dyson sphere?

One of the answers to What could make a star green? describes a living Dyson sphere made of photosynthetic, plant-like material. What type of star or star system is ideal for a plant-like Dyson ...
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My BIG World Needs More Suns

Summary version: So we're talking people living on top of 30 miles of topsoil, fake dino fossils and water on the outer surface on a hollow (but sturdy) unobtanium sphere with a radius about 1 AU. ...
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4answers
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How would temperature variation work on the inside surface of a Dyson sphere?

Let's say I have a Dyson sphere roughly the same size of the earth with a very small "star" in the center. Continents, oceans, and people inside the sphere experience a reverse gravity in the opposite ...
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How would gravity affect a structure that completely encircled the earth

If a circular structure could be built that would wrap around the entire earth, but was of a larger radius, would it 'float' above the earths surface or would it somehow fall onto the surface at some ...
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How long does a component of a Dyson swarm spend in shadow?

I'm building a Dyson sphere - a real one, like Freeman Dyson originally proposed, made of swarms of solar collectors in independent orbits that fully surround the star, something like this: Each ...
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3answers
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Could an abandoned Dyson Ring survive long enough for intelligent life to evolve?

Humanity survives long enough to create a Dyson-Ring around old Sol using many of the planets and asteroids currently in the system. Then 'something happens' we die out, we discover a way to travel ...
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Would there be gravity on the plates of a Dyson swarm?

I've heard several schools of thought. From a hard science standpoint, could there be gravity on the habitable surface of a Dyson Swarm plate? I keep thinking no. But if the outer shell were to be ...
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How many worlds would you need to mine in order to make a complete Dyson's sphere?

Suppose you were a society with the means to construct a Dyson's sphere (shell), roughly how many earth-sized planets would you need to mine in order to obtain enough minerals to build such a ...
4
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3answers
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Source of breathable air to fill Dyson sphere shell

So let's say you have a Dyson sphere that is 5 kilometers thick . Now, it isn't solid. It's meant to be inhabited. There's the inner shell which is completely covered with solar panels and any other ...
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2answers
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Interstellar construction between star systems

Asked a similar question before but didn't think it through and mangled it. Anyway would it be possible to build a structure between two star systems? Basic scenario is that you have two stars ...
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Seasons in a Dyson sphere

In my fictitious universe, a god like entity ( which is an amalgam of all individuals , scientific understanding , capabilities , and tech of a type 3.5 civilization ) produces a sun with the same ...
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2answers
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How would lack of stars , sundials , and compasses affect the exploration age?

In my fictitious universe, a god like entity ( which is an amalgam of all individuals , scientific understanding , capabilities , and tech of a type 3.5 civilization ) produces a sun with the same ...
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1answer
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Regional Climate in a Dyson Sphere

A Dyson Sphere, being a sphere, is a uniform "equatorial" climate across the entire surface. I consider this to be a major problem. Somewhere between the Dyson Sphere and the Dyson Hyperboloid is an ...
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Barycentric/Orbital stability of a Dyson Sphere and Central Star

Can a Dyson Sphere and a star inside of the Dyson Sphere, both have a "stable" orbit around the barycentre of a system where they are not the most massive objects? And/Or Can they both orbit together ...
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Geology of a supermassive Dyson sphere

There was a question on here a while ago about lighting a massive Dyson sphere, that has gotten me to thinking. Obviously, such an item needs some unobtainium to build, but ignore that. I'm figuring ...
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What could exist inside and between the walls of a Dyson Sphere?

According to FutureTimeline.net, A Dyson sphere could be built around the solar system around the year 3100 when the world reach the Kardashev type 2 scale. This is what is written there about the ...
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3answers
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How could a Dyson Sphere imitate a natural world?

I'm imagining an impossibly massive, diverse world that could only fit on the inner surface of a Dyson Sphere/Ring or similar megastructure. Would it be possible to design a system such that from the ...
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1answer
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Would people living on different ringworlds around the same star measure time differently?

Okay so I have a sci-fi world masquerading as a fantasy world where numerous different genetically-engineered humanoids live on nine different ringworlds orbiting an artificial Earth-mass black hole (...
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5answers
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Logical reasons for Forgoing a Dyson Swarm

In my Universe, the Colonization efforts and collapse of Earth leads to the rise of organic populations, nations, and cultures all across the Solar-System. Every planet and moon with hydro-static ...
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2answers
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Has realistic climate modelling been done for inverted Dyson spheres or similar?

While there are approaches to make a habitable Dyson sphere that are technically reasonable, I am curious about what the climate would be like. For simplicity, consider a scenario where a thick shell ...
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2answers
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Would this “reverse Dyson sphere”/“light-bridge” idea work?

So the idea is some hyper advanced civilization has figured out a way to send multi generational ships through space to other planets. The ships are self contained living ecosystems with near perfect ...
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2answers
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Visibility of a Dyson ring/swarm

There have been several questions about the construction, operation and destruction of a Dyson sphere. I'm interested in something a bit less exciting: how far out can you still see it from? Assume ...
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1answer
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Climatology of a supermassive Dyson sphere?

Note: There is a related question about illuminating such a sphere that inspired this question. I'm going much farther, though, this is not a dupe. The Dyson sphere will be the central mass of the ...
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5answers
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What would the surface area and climate of a Solar System-sized artifical planet be? [closed]

For my Science-Fantasy WIP I am using a Dyson-sphere like mega-structure as the setting. For seemingly infinite space without the headache, presented by the logistics of a space faring civilization. ...
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4answers
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Alternative to gravity inside a Dyson Sphere?

On the inside of a Dyson sphere there is effectively no gravity. Is there an alternative method to keep people on the inside surface from floating around? I know it could spin and that would keep ...
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3answers
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Is there a Dyson-like megastructure that would not block out the sun?

If I have a typical Dyson sphere, around my star, it will block the light needed to live on an orbiting planet. Is there any other megastructure that can function like a Dyson Sphere, but does allow ...
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5answers
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Should my Dyson Sphere be bigger? (Climate/habitable zone)

My world is a 1AU radius, 12000km thick Dyson Sphere with 6 equally spaced holes, 4 filled with water. The two main problems I have are gravity and heat. This question concerns heat and how to stop ...
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2answers
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Dark matter caused by Matrioshka Systems

It seems like Dyson Spheres are always brought up in the context of harvesting power. However, another use for a Dyson Sphere may be to cloak your solar system/inner planets. If the star's output ...
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3answers
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What should my Dyson Sphere be called [closed]

I have written out a Dyson Sphere world with four cities that surround four colossal oceans (each >16000000x the volume of jupiter). I've worked on the flora, fauna, government, pseudo-gravity and so ...
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1answer
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Tiniest habitable dyson spheres

A long, long time ago, in a galaxy far away... There lived a great and powerful civilisation who built a dyson sphere around the smaller of two stars in a binary star system and built a habitable ...
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1answer
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Possibility of a dyson sphere-esque structure with earth physics? [duplicate]

I have an idea for a DS-like world setting mostly set after the year 4200. The Earth was destroyed around 2500 and humanity moved from earth to an asteroid best and built a giant dyson sphere to live ...
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1answer
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Can an Earth like planet support life by building a Dyson Sphere across a White Dwarf or a Red Dwarf star? [closed]

Is it possible to depend on a white dwarf as our power source, provided that we harness 99% of energy? Can life be sustained? How it will change the climate and the seasons of earth if it is our ...
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1answer
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How could you protect a Dyson Shell? [closed]

As you may or not be aware, we have a wonderful bubble created by the Sun. This Heliosphere (or bubble) protects us from plasma and other debris coming at us from the interstellar medium. I have ...
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Why would god-like aliens experience boredom? [closed]

On planet Methuselah, the oldest planet in existence, there exists a race of beings that seem to be, in most definitions of the word, gods. They can form objects out of pure energy, have strength ...
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How many solar panels would it take to totally encapsulate our sun? [closed]

Unlimited Energy. Think regular flat panels that go on our roofs nested in a scaffold that bolts the panels together and routes the power via conductive channels. The panels are obviously facing ...
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2answers
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Viability of a Dyson Universe? [closed]

So going beyond the idea of a Dyson Sphere where could a Dyson Universe be possible? The Idea of a Dyson Universe is like a Dyson sphere with massive celestial engineering and construction in the ...
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1answer
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What are multiple scientificly plausible methods of faster then light travel [closed]

I'm trying to figure out several methods of FTL, that are actually theoretically possible. ALSO, What would be a viable method of high-speed travel, particularly in a Dyson-sphere (Well, A chunk of ...