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Questions tagged [space-constructs]

For questions regarding artificial structures that exist in space.

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Could a rotating ring space station have a bolo-like extension?

If the outer ring of a rotating space station was producing the equivalent to 1G, but a higher G (in a smaller area) was needed could a bolo-like attachment be included with the ring to accomplish ...
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364 views

Could we build a massive “Ark” type space station with current technology?

Armageddon is coming. A giant Texas-sized meteorite on a collision course with planet Earth is discovered in 2020. It will hit Earth in 2030 and will wipe out 90% of living things including humanity. ...
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4answers
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Could a Stanford torus rotate on an additional axis to give it a diurnal cycle?

Suppose you have a regular old Stanford torus space station with a 'glass ceiling' rotating at 1.3 RPM. Put it in orbit around a star such that its axis of rotation intersects the star (in other words,...
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3answers
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Would the rotation of the starfield from a ring station be too disorienting?

The Coriolis effect on a ring-shaped space station gets the most attention, but disregarding that, would the rotation of the starfield be too disorienting? A 1km radius station at 1G simulated ...
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2answers
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Is it possible for a space city to exist in and draw power from a nebula? Any side effects?

For context, this takes place about 300 years in the future. The space city in question is located in a nebula, completely man-made (not build upon any preexisting foundations like an asteroid etc.), ...
6
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2answers
211 views

Building a launch loop

A launch loop https://en.wikipedia.org/wiki/Launch_loop is a proposed way to put lots of things into space at lower unit cost than rockets (only need to pay the energy cost in electricity for each ...
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3answers
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Why would jupiter brain be completely devoid of ocean? [closed]

Jupiter brain is known as a colossal computer the size of a planet, if heat dissipation is a concern when constructing it how come most models lack an ocean of distilled reverse osmosis UV treated ...
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3answers
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Is spaceship made of precast reinforced concrete tougher than those malleable alloy?

Set in the mid 22nd century AD, a major construction work is being carried out in the orbit of Uranus. The military is developing a cheaper fleets using precast reinforced concrete(PRC) hoping to ...
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4answers
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How can a long spaceship combat torsion and shear stress while moving in space?

Set in the late 22nd century AD, spaceship designs are becoming more streamlined and have longer bodies measuring from the tip at the front of ship to the thruster located at the back of the ship. ...
6
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1answer
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How would you build a realistic Le Palm D'Orbit?

I was watching futurama yesterday and the Le Palm D'Orbit struck me as a fun concept. How would you go about building a orbital restaurant like the Le Palm? What kinda shape would allow the space ...
6
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4answers
169 views

Feasibility of A Decoy Earth

I am currently writing a story that involves the never-ending-theme of alien invasions. Assume Humans are roughly at a Type I civilization at this point. Humans have unfortunately wandered into a ...
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4answers
207 views

Is it possible to make Asteroid Concrete?

In the far future, man is trying to build a small colony in the asteroid belt - on one of the bigger asteroids. All the materials are to be mined from asteroids, and it is assumed the colony will have ...
6
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2answers
254 views

Alcubierre warp-lanes, what is the most stable way to create them?

2 informational references for Alcubierre fields can be found at the end of this question. Warp-lanes aren't a novelty in science-fiction. Space ships can use a specific route to go through a Galaxy ...
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2answers
497 views

What kind of science could be done in a station orbiting black hole [closed]

I am writing a script for science fiction RPG where everything takes place in a science station orbiting a black hole just outside the Schwarzschild radius. But it occurred to me I have no idea what ...
19
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2answers
495 views

The mass of an economically feasible non-microscopic traversable wormhole

Background In my hard sci-fi settings, there is an advanced Type II Civilization, that are progressing toward Type III Civilization (yes, I am referring to Kardashev Scale). They are sprawling across ...
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3answers
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Building a Dyson sphere around the sun, what about one, or two steps farther? [duplicate]

I will assume that people know what a Dyson sphere is. So you build one to encompass the Sun, harnessing all of its energy, then why not make a big spaceship out of it and have the Sun as your power ...
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5answers
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How deep must be a pit on the moon to hold atmosphere at 1ATM on the bottom

In my world I would like to create a pit on the Moon filled with air. How deep would the pit need to be to get 1 ATM of pressure Could the pit maintain the air or would it be lost to space? If it ...
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3answers
108 views

Anchoring a Deimos base

Some astronauts have just arrived in Mars orbit! They're fixing to set up a small refueling station/outpost on Deimos. One problem, how might they keep their small habitat and associated structures ...
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12answers
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What is the best design for docking onto a rotating space-station?

In the distant future, space-stations use centrifugal force to emulate gravity, effectively being a cylinder (or something similar like a wheel) spinning around a central axis at high speeds. A ...
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6answers
837 views

Are fly wheels a valid means of energy storage for powering a large space station?

This is something that was just offhandedly mentioned in a Sci-Fi book I read once and as I am now writing one myself I thought I might use it. The scenario is that I have a ship approaching a warp ...
9
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2answers
245 views

Is this station design likely to cause balance or vertigo issues?

This is a follow up to a previous question that I thought should be a new question instead of just discussing in the comments of that one. This is an idea for a space station on the surface of Eris ...
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1answer
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How big does a LEO object need to be to be clearly visible from the ground? [duplicate]

Pretty simple question I just don’t know the math for. If I want my space station/megastructure that’s orbiting 2000-ish km above Earth to seem roughly as large as the Moon to an observer on the ...
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1answer
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How would I calculate the size and angle of this space station ring?

This is an idea for a space station on the surface of Eris (but could work on other celestial bodies), using rotating rings to simulate gravity. The idea is that these rings would sit horizontally on ...
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2answers
354 views

Dimensions of an O'Neill cylinder with gravity and coriolis force like surface of Earth

What would be the diameter and rotational speed of an O'Neill cylinder on the inside surface of which centrifugal and coriolis forces are equal to "gravity" and coriolis force on the surface of Earth ...
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3answers
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Logistics: How to move humanity onto a spaceship that is being built from planet Earth?

Humanity builds a spaceship to leave Earth. For eight billion people or so, that vessel has to be gigantic. Using the metal from Earth's core for the construction and the biosphere to create a habitat,...
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2answers
139 views

First place to build the first mini space colony/factory [closed]

I thought it was a good question - somebody else ask it if you like.
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1answer
142 views

How to determine reasonable population density of a three-dimensional volume

I'm attempting to rough-estimate potential population density of three-dimensional megastructures in space. Assume a filled spherical volume (i.e. death star, not Dyson sphere), where all internal ...
12
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1answer
179 views

Would Rayleigh scattering (blue skies) be noticeable in an O'Neill cylinder?

In my story there is a full size (Island Three) O'Neill cylinder, 5 miles in diameter and 20 miles long. It doesn't have windows, but is lit internally down the center of the cylinder with a 20 mile ...
8
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1answer
194 views

Gravity differences on asteroid with an O'Neill cylinder

In my story there is something akin to an Island Three O'Neill cylinder buried vertically into the side of the asteroid Vesta. It is 5 miles across and 20 miles long. The station is buried but is ...
9
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4answers
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Can I have wind turbines on my base?

Background A colony of humans has settled on a remote planet where there is little to no sunlight, but there is a plentiful amount of earth metals. E.g.- Iron, aluminium, Titanium, etc. There are ...
6
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1answer
287 views

A self-eclipsing orbital ring

A common, matter-efficient science-fiction habitat is a hollow cylinder or ring in space that is spun to simulate the pull of gravity on its interior surface. These habitats have been imagined as ...
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5answers
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How fast would a Martian space elevator travel?

READ EDITS I am writing a passage about the main character of my book travelling up a space elevator to the spaceport that rests in geostationary orbit above Mars. This means that the elevator would ...
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21answers
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If we can have “all the comforts of home” in space why would we settle planets?

This is something that is starting to bug me, I'm creating a universe in which space travel is cheap and comfortable and space habitats can be built roomy enough that no-one actually needs to live on ...
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1answer
80 views

Planet-sized creatures floating in breathable system-wide atmosphere

In the future, we created a Dyson Swarm. Each node (which I'd like to call a Gigalga) is an asteroid-sized, biotechnological, space-adapted, sentient plant that speaks the same evolved language as we ...
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3answers
338 views

Feasability of plasma based garbage recycling into pure constituent elements

Is it possible to build a garbage recycler that turns residues into its constituent elements using plasma and accelerating it through a magnetic field? The technology level is around that of the ...
12
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4answers
672 views

Prevailing winds on a rotating space habitat

A common, matter-efficient science-fiction habitat is a hollow cylinder or ring in space that is spun to simulate the pull of gravity on its interior surface. These habitats have been imagined as ...
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4answers
374 views

How tall do atmosphere retaining walls on rotating space habitats need to be?

A common, matter-efficient science-fiction habitat is a hollow cylinder or ring in space that is spun to simulate the pull of gravity on its interior surface. These habitats have been imagined as ...
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5answers
238 views

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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1answer
140 views

How to move up to one million Earth-mass planets? [closed]

Inspired by The One Million Earth Solar System. A civilization wants to create a solar system with a lot of earth-sized planets. How would they go about building it? Specifically, how would they move ...
0
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1answer
122 views

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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3answers
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Space station around the equator

I want to know what kind of effect a large circular space station would have on the planet if it went completely around the equator in one giant circle? Would it impact gravity or anything? And would ...
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2answers
123 views

What happens to an object when it passes through a portal? [closed]

As in the game Portal, if we create two portals on two different surfaces and then join the two surfaces with the portals facing each other, as soon as an object passes through one of them, what would ...
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1answer
250 views

Firing an AK-47 while anchored to the ISS [closed]

The Setup I magnetically anchor myself to the floor of the ISS. (yes I know there's no "floor", any wall will do) Then, I fire a 5-round burst out the airlock. The Question Can the recoil from ...
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2answers
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Will be possible in the far future to create an artificial Moon for Earth and terraformed planets?

Will be possible in the far future to use megascale engineering to create an artificial hollow moon to give Earth a big moon in the sky like in billion years ago? Since it would be hollow, it would ...
6
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4answers
353 views

Feasibility of spacecraft constructed from ice

Eskimos in space! Let's say, just for contextual concerns, that a band of water-rich comet miners want to use water-ice found in the outer Solar System as the main structural and functional component ...
2
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1answer
124 views

How can a Dyson Sphere be built with minimal orbital disruption?

Dyson spheres are a staple of science fiction. Solar system spanning megastructures, they represent a significant effort by whatever species chose to build them, and a significant mass moved into the ...
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5answers
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Will be possible in the far future to use megascale engineering to create a ringworld around Earth?

I mean in the far future megascale be advanced enough to allow the construction of a ring world around Earth or around a low mass star( a red dwarf for exemple). If yes, how big Earth would look from ...
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1answer
58 views

Effects Of Deorbited Space Elevator [duplicate]

What would happen to the earth is someone deorbited a space elevator? Let's assume it reaches up to geosynchronous orbit and the bottom is in, say, Dubia or some other part of the middle east. ...
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3answers
282 views

A structually self-supporting hollow Earth?

Is it possible to have a structurally self-supporting hollow Earth where the weight of the shell is balanced against the atmospheric pressure inside? It must be human habitable (gravity is nice but ...
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5answers
4k views

Can we stay healthy if we experience microgravity for 8 hours every day?

Let's say that at an asteroid mining site, the workers live in a rotating wheel space station that can produce 1g. They use Earth's 24 hour day, and for 8 hours a day, people go to the asteroid to ...