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Questions tagged [colonization]

Questions regarding the formation of a new colony on another planet or other body.

12
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6answers
8k views

Could a space colony 1g from the sun work?

Let me break down my thoughts and I have no science background so let me know if this could even be possible. Have the colony on an object like a big asteroid or a similar man made construct. Have ...
11
votes
1answer
139 views

Can a semipermeable greenhouse be used to extract CO2 from the Martian atmosphere and help provide oxygen to a colony without using a pump?

When doing an experiment on growing plants in sealed plastic bottles, I learned that many plastics, such as PET used for soft drinks bottles, are more permeable to CO2 than to N2 or O2 (see table 2 of ...
7
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1answer
104 views

Carbon sources on the Moon?

In the answer to this question it is pointed out that while lunar soil may provide nutrients for plants, water and carbon dioxide are also needed. Water seems to be available, but how could there be ...
0
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0answers
174 views

How would a body be stored in a dark hole in the moon?

How well would the human body stay preserved if it was frozen while pressurized and vacuum sealed before being placed in a crater on the Moon? Would the temperature be more reliably stable on the moon ...
1
vote
2answers
193 views

Could an Igloo work on Mars?

Could ice make a good habitat like an igloo for colonists or as cold storage for fuel? Could the cavern be sealed and then carbon dioxide melted to create pressure inside the cavern to grow plants or ...
9
votes
1answer
308 views

Couldn't we just clear away the Moon Dust?

I read that "Moon Dust" is ranked by NASA as the number one challenge to building a permanent lunar base. Wouldn't it be possible, though, to send some type of lunar excavators to clear a large zone ...
4
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2answers
81 views

Capture protons from solar wind

Could it be possible ( using a reasonable amount of energy and ressources ) to capture protons from solar wind on (ex. the moon) in order to produce water for a long term self-sufficient mission. The ...
1
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2answers
158 views

Titan vs Mars for colonization

This question is along the same vein as Venus vs Mars for colonization but without the person at the table. Is Mars better than Titan which to me seems a more realistic option for colonization? With ...
2
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1answer
108 views

Can the top soil of the Mars be transformed to be arable, and how to do it?

Can Mars top soil be transformed to be arable, and how to do it? It may be planted in the isolated space.
2
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1answer
77 views

What would the full hypothetical Mars terraforming roadmap look like?

Most of all the articles about Mars terraforming focuses on warming the atmosphere. 2nd most popular topic as far as I know is the magnetic field that Mars lacks. Some other sources speak about toxic ...
2
votes
1answer
115 views

Is any feature of the Moon protected?

Perhaps this seems trivial, since it may not directly affect our planet, but if we ever colonize the Moon and mine its resources, the trace of human devastation will change sooner or later the surface ...
3
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0answers
67 views

Fate of human-made objects on mars

Now that Opportunity is dead, and since there are ideas for future human missions to Mars, I wonder if there is a project to collect all our rovers and landers or at least label as historical sites ...
4
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2answers
331 views

How would you move in low gravity without a suit?

Assuming your in a habitable environment, how would you move on a planet or moon with significantly less gravity without the encumbering EVA suit?
0
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0answers
133 views

Is there any reason other than lack of oxygen Tardigrades can't survive Mars?

If Cyanobacteria or Lichens can survive on Mars could other small organisms like the Tardigrade then survive & flourish among them? Due to the thicker atmosphere to be found the bottom of the ...
0
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0answers
79 views

Can Mars provide vitamins?

How long can nutrients found in Mars along with an algae diet sustain human life?
3
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1answer
136 views

Pressurized Organic Oxygen Pods

Human waste could be used in a hydroponics facility to grow algae in space or Mars in pressurized tanks, and the photosynthesis can be used to convert CO2 to breathable oxygen. A carbon dioxide ...
3
votes
0answers
143 views

What's the deepest a trench could theoretically be dug on Mars?

Given the physical characteristics of Mars (the crusts thickness, it's composition, gravity, etc) how deep a trench (that could be expected to continue to exist indefinitely, or rather, for periods of ...
7
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1answer
542 views

How deep a valley or trench would be needed on Mars to provide the same atmospheric pressure as 6 km above sea level on Earth?

Atmospheric pressure increases the deeper you go & the highest growing plants on Earth have been found at a height of 6 km so how deep a trench would we need on Mars to provide similar air ...
1
vote
2answers
132 views

Can carbon dioxide be distilled from a Helium/Oxygen atmosphere by using natural refrigeration?

A simple air compressor compress carbon dioxide/water saturated helium/oxygen air in a tank to liquefy water from the air by pressure. Abstract the water, then refrigerate the carbon dioxide/helium/...
5
votes
2answers
458 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 ...
5
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0answers
131 views

Could the Kordylewski clouds be harvested?

Could the Kordylewski clouds be harvested electrostatically to be used for shielding at Earth moon L4 and L5 space stations? As it's been suggested they may pose a problem for the space stations ...
2
votes
1answer
377 views

Martian Carbon Dioxide Turbine Oxygen Generator

How much solid Carbon Dioxide can be collected in a container with the top of the container level with the ground during a Martian Winter? Side Question: What do you call a generator that runs on the ...
3
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0answers
97 views

What technology do we lack, preventing us from the colonization of space? [closed]

I mean the technology that will facilitate multi-planetary life. There is definitely a financial feasibility concern with existing tech, but what technical developments remain to achieve this ...
3
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0answers
142 views

How is lunar regolith drawn into “glass fibers” to reinforce lunar concrete in this process?

The Verge Science video Building a lunar base out of Moon dust discusses using harvested lunar regolith (powder-like) mixed with a polymeric resin produced from "space trash" (I'm imagining discarded ...
3
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1answer
97 views

Level of radiation on surface/ocean of Mars AFTER terraforming

I am a Mars enthusiast, and lately have been wondering how safe Mars would be to live on after it hypothetically has been terraformed into a pseudo Earth. Obviously, the bigger health hazard would be ...
2
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0answers
63 views

Practical rate (e.g. kg/day) that carbon could be harvested from CO2 in the Martian atmosphere and climate?

There is frequent discussion of using CO2 in the Martian atmosphere to synthesize carbon-containing compounds. One example is methane for propulsion, another: Can materials be found to make plastic ...
1
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0answers
72 views

Might aerogel based space habitats be possible?

As I can judge, none of the finalists in the NASA's 3D printed habitat challenge uses aerogel. Why so? (given that you can 3D print aerogel) One of the most daunting challenges to building ...
0
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1answer
124 views

Cost of autonomous habitat largely produced from 1 or 10 million units

Given you would design and built a fully autonomous habitat module for 2-6 people to survive on long term on Mars. I.e. a nuclear power source, solar cells, air/water recycling, tools.. Given, after ...
7
votes
2answers
488 views

What is the deepest place on Mars? Do humans need pressurized suits there?

Is there any particular deep area, trench, fissure, lava tube or otherwise on of Mars in which a person could survive with only an oxygen supply? How deep would plants or animals have to be in Mars ...
3
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1answer
141 views

Manned exploration or Colonization of Ceres — Any studies

There has been much discussion, here and elsewhere about the manned exploration or colonization of Mars. Among the problematic aspects are shortages of hydrogen and nitrogen in most areas, dust, and ...
3
votes
1answer
267 views

Is it a waste of time and resources to colonize Mars? [closed]

To a large extent we have good confidence that Mars used to be a very wet world with a thick atmosphere. Now it's clearly very dry and the atmosphere is extremely thin. So if we colonize Mars with the ...
0
votes
1answer
177 views

A way to go to Mars and come back

I have only 6 months of knowledge about rocket science but I was wondering why can't we do the following to go to Mars and come back to Earth: We can have enough fuel in a rocket at maximum to just go ...
6
votes
1answer
887 views

If we got to Mars right now and landed at the poles (where there is a lot of water ice) how long would we be able to stay there?

I thought that if we landed at the Martian poles, we could get water from the water ice there. So how long would we be able to survive? Oxygen can be extracted from the water ice if we break it ...
11
votes
1answer
326 views

Is Seasonal Affective Disorder a concern for Mars colonists?

We're all discussing effects of Martian sunlight exposure on structures, plants, solar panels, but I don't think I've seen any discussion of its effect on humans. There's a number of effects of ...
8
votes
5answers
381 views

Would it be feasible to use natural light to grow plants on Mars?

Would we need to use natural lighting to grow crops on Mars instead of just going with artificial LED lights? What are the pros and cons of using natural lighting, and do you think that a future Mars ...
7
votes
2answers
165 views

What will shooting stars look like on Mars?

I'm wondering what the martian night sky will be like. Since the atmosphere is so much less dense than that of Earth's, will we see shooting stars in the same way? Or will they tend to burn up much ...
1
vote
0answers
74 views

What class of near-earth asteroids would be most feasible for colonization? [closed]

There are four types of near-earth asteroids: Apollo class asteroids, with orbits that intersect Earth and semi-major axes larger than Earth's Aten class asteroids, with orbits that intersect Earth ...
4
votes
0answers
67 views

Are there any past or present plans or proposals to explore martian lava tubes?

Lava tubes on Mars are the prime target for human or robotic missions. They provide protection from radiation, surface conditions, and are thought to have stable internal temperatures. Lava tubes are ...
1
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0answers
77 views

Is terraforming inevitable? [closed]

Is only economics and the huge scale (material, spatial, and temporal) of the project the only limiting factor that could stop some groups from succeeding? Will other groups of people having a ...
2
votes
0answers
83 views

Cubic meters of martian greenhouse required

I'm trying to figure out how big a martian greenhouse would need to be to feed one person or supplement a significant portion of their diet. Question: What is the maximum amount of Calories one cubic ...
1
vote
1answer
95 views

Can a symbiosis be sustained between plants and 1 person on Mars?

This question How many plants would be needed to produce oxygen enough for 20 humans? is a good question but does not cover soil nutrients and food source for the people. Is there a set of plants ...
1
vote
1answer
128 views

Martian Watershield Greenhouse

Would a greenhouse using a watershield 10 meters in depth be able to receive enough sunlight to grow crops?
4
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1answer
106 views

Part 1 - Wires, fasteners, and other metal hardware - mundane in-situ on Mars

Fasteners - screws, bolts, washers, brackets, conduit, nuts, wire - both coated and uncoated There are many sources of how we will mine the regolith for ores that contain useful quantities of water, ...
8
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3answers
2k views

How many plants would be needed to produce oxygen enough for 20 humans?

Does it depend on the type of plants and how much sunlight they get too?
0
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1answer
110 views

What are the geological features for a save place to land in the chaos terrains on Mars? [closed]

Chaos terrains on Mars generally consist of irregular groups of large blocks, some tens of kilometers across and a hundred meters high. The tilted and flat topped blocks form depressions hundreds ...
1
vote
1answer
238 views

Would a Faraday cage made of gas block radiation?

What is best blocks radiation and is transparent as a gas? Would applying an electrical current through the gas increase the gas from blocking radiation on Mars? Radiation could be blocked by the ...
2
votes
1answer
172 views

Can air pressure be accumulated this way for a biodome or spacesuit?

Using plastic or rubber or something similar and transparent be inflated with each layer having a increasing pressure lessening the strain on the containing material? When one or two layers fails the ...
5
votes
2answers
1k views

Could ozone be used in a biodome on Mars?

How much ozone would it take to block solar radiation on Mars if chambered in double panned glass or material? Said $O_3$ would break down from the UV. Would applied electricity on $O$ and $O_2$ make $...
2
votes
2answers
160 views

Mars Watershield Greenhouse Question

I was reading about Martian greenhouses earlier today and I saw this image: Would this be feasible? Would the water need to be cooled/heated up to prevent things like water condensation from forming ...
2
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1answer
170 views

Manufacturing rope, textile, and clothing on Mars

I'm wondering what the most space and mass efficient system is to construct woven products such as rope, textiles, or clothing on Mars. Current textile production strategies often rely on methods ...