Questions tagged [space-station]

A space station (or orbital station) is a spacecraft capable of supporting a crew, which is designed to remain in space (most commonly in low Earth orbit) for an extended period of time. For questions about specific space stations (e.g. the ISS, MIR, Salyut 1-7, Tiangong or Skylab), please use corresponding tags.

Filter by
Sorted by
Tagged with
1
vote
1answer
64 views

Optimal shape for a spinning ship/station - downsides of spheres? (Radiation shielding)

What is the optimum shape for a spacecraft? So I've already read this link, and a few other similar ones, and the main issues I am already aware of... but yet it still seems like a large majority of ...
0
votes
1answer
69 views

What would be the cost of a thorium reactors at the core of a large starship? [closed]

Thorium is a high power substance that can contains large amounts of energy in a small space. How much would it cost to install and maintain one on a large starship? As well as using solar panels, ...
5
votes
0answers
55 views

Are ferrofluidic seals used in spaceflight? Main applications? Human-rated?

Comments below this answer have inspired this quesiton. Wikipedia's Ferrofluidic seal sez: Ferrofluid-sealed feedthroughs routinely operate in environments including ultra-high vacuum (below 10⁻⁸ ...
6
votes
1answer
117 views

Would air circulate in a rotating station on its own?

I know air circulation was a tricky problem on the ISS . I think that in a rotating station the air would be moving with the station, but the air against the “floor” would be moving faster or have ...
6
votes
3answers
2k views

Is there anything on the ISS that would be destroyed if that object were returned safetly to Earth?

Is/was there anything (device, animal, plant, etc.) on the International Space Station that will be destroyed/dead if that object returns to Earth? (Assume that thing/animal is brought in, for example,...
2
votes
1answer
75 views

Where should ion drives be placed on a rotating space station of the lop-sided dumbbell variety?

I have been working on a model of a proposed artificial gravity facility by Joe Carroll, based on this paper. It is an initial concept paper and it doesn't spell everything out, so I am trying to ...
2
votes
1answer
55 views

Does deploying an artificial planet help us study and collect more detailed data about the solar system and the universe?

If we have a space station that can orbit like a planet, wouldn't it give us an advantage in terms of positioning for astronomical experiments? This may also enhance the network transmission ...
3
votes
3answers
195 views

Is it possible to identify the main systems that would be present in a generalized space station?

What are the main parts of any space station? I have been making a 3D model of a hypothetical space station, and I'd like to ask if it is possible to identify some main components and/or subsystems ...
-1
votes
2answers
190 views

Could NASA go back to the Moon? [closed]

Even after launching so many space missions, including the one which led Man to the Moon (Apollo 11, July 1969), NASA made several mistakes even in the space programs that followed. For e.g. Space ...
5
votes
2answers
141 views

What orbit would a space station need to stay in orbit for $N$ years?

(posted before on physics stackexchange but was told to come here) I'm reading this book which has a post-apocalyptic setting. At one point you look at the earth from the view of a 1000-year-old ...
5
votes
2answers
754 views

Are the mirrors on O'Neill cylinders really feasible?

The classic O'Neill design for a cylindrical space colony has a cylinder four miles in diameter and 20 miles long, with three mirrors reflecting sunlight into the colony. To illuminate the whole ...
8
votes
0answers
58 views

Examples of space research applied to Earthly manufacturing

I remember reading utopian predictions about space manufacturing. It's clear that factories in space delivering consumer goods for your local retailer is not going to happen in the near future. But I'...
6
votes
0answers
351 views

Which astronaut has experienced the largest relativistic shift in time (relative to the surface)?

Following this answer and then this question (where I've linked to Cosmonaut Sergei Krikalev; the World's Most Prolific Time Traveller) I've noticed that currently Krikalev does not hold the precisely ...
2
votes
3answers
190 views

Do spinning space stations slow down without energy input?

One thing I always wondered was if a giant spinning space station that was providing artificial gravity would slow down without any energy input. I would assume that energy is being lost to heat as ...
16
votes
4answers
2k views

Why was the ISS so much more expensive than Mir?

The Wikipedia article on Mir places its total cost at a little over four billion dollars. The ISS on the other hand, is at 150 billion and that figure will surely increase more over the coming years. ...
1
vote
2answers
272 views

Energy solutions for space [closed]

One of the primary methods of creating power in space is by solar panels. However upon reading more about silicon based solar panels I got to know how even small dust particles can ruin the whole ...
5
votes
2answers
331 views

Can there be color blind astronauts?

This answer begins with: It appears to have actually been a pole, not a cord. Handrails and handholds, colored blue for quick identification, were located throughout Skylab. ...
4
votes
1answer
272 views

Why did Skylab have a thick blue flexible cord running down its central axis?

After watching the video below (found here and here and here) I am reminded of the series of possibly less than 100% serious questions here about being weightless in the middle of a large volume and ...
11
votes
0answers
150 views

How does increased environmental radiation affect medication potency, long and short term?

The issue of the effects of radiation on medication potency is not only important for long term stays in the ISS, but also very important for longer duration journeys and even for colonization. One ...
1
vote
0answers
152 views

Orbital Strap-on Boosters?

Have there been any proposals to launch a "space station" type of assembly into LEO, then send up some engines to get it to be able to move again? Take for instance something akin to the ISS, but much ...
11
votes
1answer
1k views

Largest inhabitable volume in space

When you look at space ships, capsules and stations, one thing that is lacking in space is… space. As in: pressurized volume a human can freely move in. Most are tiny tin cans. So I was wondering, ...
1
vote
0answers
78 views

Do space stations have standardized officer designations for crew?

I have some anecdotal information. The ISS has a commander, and I noticed here that it had a Flight Engineer, and in this article (found here) I see that Skylab had a Science Pilot. Do space stations ...
0
votes
0answers
28 views

Can artificial gravity be created by spinning the hull of the space station? [duplicate]

Is it possible to create artificial gravity in space stations by spinning the hull of the same as shown in movies like interstellar and The martian? If yes, at what angular velocity should they be ...
2
votes
0answers
121 views

Would a space station be able to watch a world wide cataclysm and how long would the crew be able to survive for? [closed]

I know there is other questions with similar concerns about there being any protocols in pace if the crew of space station were to witness a world wide cataclysm and the survivability of the crew if ...
8
votes
2answers
580 views

Why is Bigelow BA330 expandable instead of fitting fairings?

Bigelow Aerospace develops expandable (inflatable/foldable) space stations. Their flagship is their cylindrical BA330 which has the dimensions 13.7 by 6.7 meter when expanded. Current ISS modules seem ...
5
votes
0answers
103 views

Would Bigelow space stations work if rotated to achieve 1G simulated gravity?

Would Bigelow's proposed space stations work if two of them are connected by a tether and rotated to simulate gravity of 1G (or how much)? Would they hold up structurally? Would there be other ...
6
votes
3answers
3k views

Why is tethered artificial gravity hardly ever considered?

When you ask about rotating artificial gravity (yes, yes, technically radial acceleration), most answers boil down to "you'd need a 200m diameter spacecraft, and we can't build that yet" But, of ...
20
votes
3answers
4k views

How best to maneuver inside a large room within a space station using only arm and leg motion?

Imagine the following thought experiment: An astronaut is inside an extremely large room within a space station. Suppose that she, for whatever reason, is initially at a zero velocity with respect ...
1
vote
1answer
56 views

Was that the space station I saw last night? [duplicate]

I was out on my front porch last night around 9pm looking up at the sky and noticed what I first thought was a star in the Eastern sky. It twinkled just a little too much for a star so I thought maybe ...
3
votes
0answers
72 views

How many tons of water is needed to surround ISS's living modules, so the rate of radiation exposure will be the same as on the surface of Earth?

If I understand correctly, it wasn't done because it's very expensive ($ per lbs) and there are no launch systems powerful enough for that? Also, could you please provide formulas and calculations? I ...
8
votes
3answers
956 views

Is there an upper limit for the internal size of space stations?

I was reading about the various TransHab proposals (at http://www.astronautix.com/craft/traodule.htm, among others), and I started to think about pushing the idea to its limits. Assuming you had a ...
8
votes
1answer
304 views

Practicalities of docking with a large spinning space station

We've all seen countless examples of spinning habitats in fiction. However there are certain practicalities with these space stations that I can't get my head around, namely around how you'd dock with ...
3
votes
0answers
154 views

What is the response to the criticism of LOP-G project by Zubrin and others?

Many people have aired criticism of the project (see here for some). Was there any response from the project's team or NASA regarding these criticisms?
2
votes
0answers
35 views

What happens to the space station during a solar flare / magnetic storm? [duplicate]

What are the effects on the ISS during a solar flare / magnetic storm? The news often warns that satellites could be affected during a storm. Does the ISS have special protections for that danger?
5
votes
2answers
245 views

What is the timespan for a block of Phobos to reach a low orbit around Mars with a solar sail?

Edit: Although this question has been marked as a duplicate of this one about solar sail thrust calculation, they are different because I ask about a solar sail that has an orbital trajectory and ...
0
votes
2answers
264 views

Water Compressed on Space Station

I have heard rumors that they use compressed water to save space on transportation to the space station. Is there any possibility of this occurring at any point in space travel history?
3
votes
0answers
50 views

What particles does the space station have to worry about?

I've heard things like "even a paint chip can damage the space station" and I wanted to know to what extent that was true. I imagine the best characterization is what is the minimum momentum or ...
8
votes
1answer
456 views

Has the Earth's shadow on the Moon (lunar eclipse) ever been photographed from Space?

The questions Has the Moon's shadow on the Earth (solar eclipse) ever been photographed from beyond Earth orbit? Is this the only eclipse where Moon's shadow on the Earth (umbra) has been ...
16
votes
3answers
3k views

Feasibility: self-sustaining colony on Mars vs. Space Station

What’s more feasible: to build a self-sustaining colony on Mars or as a self-sustaining space station? The 1976-book The High Frontier advocates the latter while Elon Musk seems pretty confident that ...
2
votes
2answers
176 views

Space station Freedom - purpose (specialisation) of pressurized modules

A project of Space station Freedom had a long evolution and eventually ended as US segment of International Space Station. For ISS we know specialisation of pressurized modules. What were purposes ...
3
votes
0answers
180 views

What is the minimum diameter to spin a space station to generate 1 G without affecting human vertigo [duplicate]

Thinking about the mars mission. If we had 2 equal weight capsules, how far apart would they need to be to generate 1 earth gravity and not affect the crew. I know from riding the round up when i was ...
12
votes
1answer
2k views

Could the space shuttle be permanently left in orbit as a space station?

Could the space shuttles have been left in space and used as temporarily visited space stations? One could put a modified spacehab in the cargo bay, with solar panels and with which the Soyuz/Dragon ...
8
votes
2answers
200 views

What is the current state of commercial space stations?

Many years ago, in the 2005 - 2010 area, it seemed like there were a lot of proposals to create commercial space habitats. These included inflatable modules, usage of spent fuel tanks, and ...
5
votes
2answers
251 views

How are impact probability maps rigorously calculated?

This is one example of an impact probability map. It was posted in this question and is from Aerospace Corporation. But My question is about the process, not this particular map, although it is a good ...
5
votes
1answer
201 views

Silly concept: repurposing BFS into a spin-gravity habitat

The idea is the following: Launch four passanger carrying (but empty) BFS and a fifth, (satellite deploying version) which carries the central hub, outfitted with spin-up engines. Then manouver the ...
8
votes
3answers
1k views

Would a solar windmill in space be practical?

From this question we know that solar cells be problematic the farther you get from the sun. We know that solar sails provide viable propulsion far from the sun. Would it be practical to use a solar ...
1
vote
0answers
171 views

How to size Solar Array for Mars Surface

Good morning everyone, I am working on a project for my university where we need to perform a PrePhase A study for a Mars Infrastructure for Propellant production as a means of support for future ...
33
votes
1answer
6k views

Why does there appear to be a 180-degree stereo microphone array outside the ISS?

I was watching a feed on the latest footage of Hurricane Matthew as seen from the ISS just now, relayed from NASA TV. Suddenly, I spotted something poking out of the ISS hull in the footage that ...
4
votes
2answers
430 views

Could the Soyuz/Progress supply and crew a space station in Lunar orbit?

The Soyuz launcher can put about a third of the mass in low Earth orbit compared with Proton, Falcon 9, Ariane 5, Atlas V. Is that enough to crew and resupply a space station in Lunar orbit, or at an ...
3
votes
2answers
1k views

Why are centrifuges not used on the space station? [duplicate]

The low tech county fair ride in the picture below is a centrifuge. How difficult would it be to send modified one like this picture to space? It could spin on non bearing engine indefinably to ...