Questions tagged [space-constructs]

For questions regarding artificial structures that exist in space.

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3
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1answer
80 views

Can a planet's artificial ring always face the sun?

A habitat/space harbor ring encircles an ice giant crossing both poles (polar orbit) and rotating to create artificial gravity. Can the ring also precess in synchronization with the planet's year, so ...
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1answer
74 views

How much sunlight can I get into my O'Neill cylinder and how much light needs to be artificial?

The cylinder is 32 km long in total, 8 km in diameter, with 3km long endcaps, resulting in a habital area with a length of 26 km (= and an area of cirka 754 km2). The main body of the cylinder is ...
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1answer
59 views

Speed of elevator on rotating wheel space station

Assuming a passenger was sitting in an elevator in a rotating wheel space station, as depicted in the movie 2001:A Space Odyssey and based on this question Elevator on rotating wheel space station, ...
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3answers
258 views

Hurricane-force winds or gentle breezes in an O'Neill Cylinder?

Let's consider an O'Neill cylinder with a radius of 3.2km and length of 20km. In the classic O'Neill design, we have three large axis-aligned windows in the shell, alternating between purlins of ...
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4answers
3k views

What would happen if the ISS made an uncontrolled re-entry through Earth's atmosphere? [closed]

Total annihilation? Global impact? Localised consequences? To give my question a little more context: the International Space Station (ISS) is supposed to be retired sometime in 2020 due to having ...
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2answers
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Would the Earth appear to be spinning off center when viewed from geostationary orbit?

In 2001:A Space Odyssey, from Space Station V the Earth appears to be spinning around a center that is near the edge of the planet. Phone call from space station scene If the same station (300 meters ...
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2answers
62 views

Transmitting energy from the upper part of a space fountain using the stream of rotating masses

Imagine we have a sufficiently tall space fountain positioned at either of the Earth's poles, such that the upper station is permanently within view of the sun. A large array of solar panels could be ...
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61 views

Would bow shooting work different in an O'Neill cylinder? [duplicate]

The setting takes place in an Island 3 O'Neill cylinder. All type of bows included. I wonder if there are things to take into consideration when describing how a person would target and shoot, as well ...
5
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3answers
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Is it possible to have multiple different climates within one O'Neill cylinder?

The illustrations of O'Neill cylinders I have come across with so far allow unrestricted view through the whole tube. Some are more playful with topography but still, there is a visible end. Are ...
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2answers
138 views

Would a Hot Air Balloon work in an O'Neill Cylinder?

We had a long discussion in my office about this - if we were in a smallish 500m diameter O'Neil cylinder would hot air balloons work?
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2answers
172 views

What rare elements would be most needed in building a space station beyond the Earth?

If people were attempting to build a space station beyond the Hill Sphere, (outside of the area where Earth's gravity dominates), and wanted to mine the raw materials for the station from dwarf ...
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2answers
151 views

Explain the rotation and positioning of O'Neill cylinders to me

I have seen Isaac Arthurs video of O'Neill cylinders and read through many descriptions, but it still is not clear to me how exaclty the two counter-rotating cylinders are placed in regard to another ...
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1answer
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Effects of dropping in and out of zero G on a space station

I'm writing a book that involves having a space station that acts as a way point between Earth and a new planet. (Hard"ish" SF, or as "Hard" as I can make it...) The Station sits at the mouth of a ...
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2answers
190 views

How Close Can We Build Solar Collectors to the Sun?

Say you've got a space-faring civilization that needs a LOT of power. Sure, fusion is a thing, but there's really not that much helium-3 to be found in our solar system, and it's hard to get. So the ...
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4answers
180 views

Mobile/Deployable Space Elevator? [closed]

Would it be possible to have a space elevator that could be coiled up stored in a ship during transport and then deployed from orbit down to a planet upon arrival? Additionally, About how much ...
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6answers
647 views

How to determine port and starboard on a rotating wheel space station?

The ISS uses port and starboard to differentiate between the two sides of the station. (The Harmony node photographed after it was attached to its temporary location on the International Space ...
2
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1answer
93 views

Protecting a ringworld from solar radiation

How can I protect a ringworld (which creates 1g artificial gravity and has an earth-like atmosphere) from the things that earth's magnetic field protects us? (using real-world physics)
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4answers
691 views

Life on the Broken Ring - an issue of size

One of my ongoing projects is what I think of as the "constructed worlds gallery", a series of Megastructures as settings for stories and games, including things like the "Flying Pie-plate" a world ...
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3answers
194 views

Elevator on rotating wheel space station

Is there any reason an elevator, moving from the central hub to the outer ring, would not function on a rotating wheel space station with artificial gravity? Any parameter of the radius or rotation ...
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4answers
426 views

Vertical cyclones in 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. While for most purposes this artificial ...
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1answer
279 views

What would happen to air flow and fires in an O'Neill cylinder?

I was curious: Suppose we built an O'Neill cylinder with an air mixture similar to Earth's (not pure oxygen). Does the air also get "thrown" down towards the floor of an O'Neill cylinder? If I ...
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1answer
164 views

Most dangerous place on a rotating wheel space station? [closed]

I'm assuming a recovery and launch bay, where ships enter and leave the station, would be the most dangerous place on such a station. While it wouldn't be nearly as dangerous as the flight deck of an ...
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5answers
165 views

Axis of rotation of a wheel space station [duplicate]

Is it possible for the axis of rotation of a rotating wheel space station in orbit to be aligned with the center of the Earth? I'm wanting a situation where a person on the station could look out one ...
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5answers
189 views

Zero G area on rotating wheel space station

If I needed a large area for zero-G training, is there any place to put it on a rotating wheel space station if the hub was needed for docking of spacecraft? I wanted a place on the station that ...
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3answers
138 views

Launching spaceships from the outer edge of a rotating wheel space station

Based on Docking on the outer edge of a rotating wheel space station would it be impractical to launch ships off of the outer edge of a rotating wheel space station? Whether launching the ships along ...
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2answers
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Docking on the outer edge of a rotating wheel space station

Assuming such a space station needed to have its central hub not used for docking spacecraft, would it be plausible for a spacecraft to dock on the outer edge of a rotating wheel if the ship ...
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4answers
231 views

Military academy in geostationary orbit

Say a novel is set 100 years from now, when a confederation of nations establishes a unified military force. (Yes, I know, but this is fiction after all) Would a military academy, training astronaut ...
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1answer
115 views

Inner ring on rotating wheel space station?

Could Space Station V, from 2001: A Space Odyssey have an inner ring? Would the inner ring have a different G-force if the inner ring was halfway between the outer ring and the hub. Would there be ...
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4answers
205 views

Solar panels on rotating wheel space stations

What would be the best configuration of solar panels on a rotating wheel space station? I am thinking about Space Station V design and dimensions. Space Station V comes from 2001: A Space Odyssey. ...
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1answer
1k views

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 was needed could in small modules, could a bolo-like attachment be included with the ring to accomplish ...
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6answers
523 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
278 views

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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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
217 views

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.), ...
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2answers
240 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
137 views

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
166 views

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
163 views

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 ...
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4answers
181 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
251 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 ...
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2answers
311 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
507 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 ...
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2answers
586 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
263 views

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
6k views

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 ...
6
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3answers
117 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
870 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
259 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 ...