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

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46 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 ...
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0answers
53 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 ...
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1answer
66 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 ...
2
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1answer
108 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
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1answer
119 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
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1answer
158 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
832 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 ...
6
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0answers
86 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 ...
7
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5answers
258 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 ...
6
votes
2answers
139 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
57 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 ...
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0answers
66 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 ...
1
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0answers
66 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
78 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
59 views

Martian Watershield Greenhouse

Would a greenhouse using a watershield 10 meters in depth be able to receive enough sunlight to grow crops?
4
votes
1answer
98 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
603 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
101 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
135 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 ...
1
vote
1answer
144 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
124 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
votes
1answer
120 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 ...
17
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1answer
3k views

If colonists burrowed far enough under the ice on Ganymede or Europa, would the ice provide adequate protection for them from Jupiter's radiation?

This is a hypothetical question I'm asking as a SF writer, and the time setting would be approximately 2,250 AD.
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2answers
188 views

Are any of the planets in our solar system (other than Earth) inhabitable?

I've watched a TV series on a group of people that build a community on our neighboring planet, Mars, and after watching it, I started to wonder: Could something like this really happen in the near ...
22
votes
3answers
4k views

When will we send floating probes to Venus?

Recent plans on human missions to Mars have sparked many discussions, one of which is about if we should colonize Venusian upper atmosphere with Zeppelin like floating ships and cities first. NASA ...
2
votes
0answers
180 views

Transparent radiation shielding for martian surface bases

One idea that's often floated when discussing ways of constructing martian habitats is that of "doming" over small craters or valleys and pressurizing the whole area. This would have several ...
5
votes
1answer
558 views

Mars Vacuum-blimp Feasability

There's an article published by NASA in which they discuss the practicality of using an evacuated blimp or airship on Mars. Their main points are that since the exterior pressure is so much lower, ...
3
votes
1answer
376 views

Will thinning the atmosphere of Venus make its surface habitable?

I have no idea about this thing, but since Mars is on the table, why not Venus? It has comparatively better gravity and a big enough surface. Also, maybe we can harvest its atmosphere and use it ...
1
vote
1answer
182 views

What downsides are there to a low pressure dome over a Mars base?

If you added a dome to a mars base, greenhouses too, and added 1/10th Earth pressure (10 kPa) you would be able to grow lichen which could be a food source and a source of oxygen from the carbon ...
6
votes
1answer
195 views

Is there an end-of-mission for Mars One?

So far, it appears Mars One will be one-way mission to Mars, to establish a colony with no options to return to Earth, astronauts staying on Mars to the end of their lives. But does that mean the ...
1
vote
0answers
73 views

Could the moons of Jupiter or Saturn be heated to human-friendly temperatures?

I always loved the part in 2001 where Jupiter becomes as star. Has anyone ever suggested placing power generating stations high in the atmosphere of gas giants, and beaming the energy to colonies on ...
11
votes
2answers
331 views

Why would humans travel to Mars before machines have built a colony?

Why is there a push to get humans on Mars in the next few decades? Wouldn't it be wiser to send only robots first to set up an entire colony; do research; try to establish self-sustainability, etc. ...
6
votes
2answers
329 views

What steps is Elon Musk taking to colonize Mars?

I know that Elon Musk is shooting for a manned mission to Mars sometime in the 2020s but what will happen from there?
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2answers
197 views

A Safe Orbit for a Terraformed Venus?

There is a science fiction idea called terraforming. Assuming that it is possible to change the orbit of Venus, is there an orbit that would give Venus the same climate as the Earth (i.e. the same ...
7
votes
1answer
483 views

Is there a contingency option in Elon Musk's plan to colonize Mars in case the in-situ propellant production does not work out?

I am referring to this recently published document. Producing propellant on Mars is a key part of Elon Musk's plan. What would happen if the first crew got to Mars and found out that, for whatever ...
31
votes
2answers
7k views

Why can't we use the same radiation shielding in Mars that we used when going to the moon?

Note that this is somewhat related to this question but here I am specifically asking about the suitability of using existing shielding for Mars travel. This is about this article and video titled "...
2
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0answers
155 views

Sunroofs on Mars - durable transparent structural plastics lighter than glass to ship from Earth?

Comments below this answer to the question Which is easier to build on mars per square kilometer; greenhouse windows or photovoltaics/LEDs? discuss the possibility of using plastic instead of glass ...
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2answers
210 views

Which is easier to build on mars per square kilometer; greenhouse windows or photovoltaics/LEDs?

If someone wanted to grow large quantities of food on Mars and they wanted to specify sunlight rather than nuclear or other sources, the two options I can think of are greenhouses and photovoltaic/...
10
votes
2answers
594 views

Is a magnetic field really needed to terraform Mars?

I see so many discussions about how the main roadblock to terraforming Mars is its lack of a magnetic field. If Mars had an atmosphere as thick as Earth's but no magnetic field, wouldn't it still take ...
10
votes
1answer
450 views

Use of carbon monoxide as propellant on Mars

Is it possible to use carbon monoxide as propellant for a rocket? For example, carbon dioxide from the atmosphere of Mars could be transformed to carbon monoxide and oxygen via photochemical ...
7
votes
1answer
845 views

Is child birth possible in lower gravity?

We are probably going to create colonies on Mars in few decades or centuries, so which steps have been taken by NASA or other space agencies to find out if child birth is possible in a lower gravity ...
8
votes
1answer
330 views

What useful elements are NOT to be found on Mars?

There are a series of questions on this site which are generally "Is there X on Mars?" "Are there sufficient Y to create Z on Mars?" And the answers are generally YES for the most part. What is there ...
5
votes
1answer
259 views

Can plants thrive without atmospheric nitrogen?

One of deficit resources on Mars is nitrogen. There's a plenty of carbon dioxide, and a modest amount of water. There's a deficit of nitrogen, but AFAIK plants use nitrogen in compounds found in soil, ...
8
votes
1answer
474 views

Constant lunar sub-surface temperature

On Earth we have the idea of constant ground temperature. Builders in North America think of it as 55 degrees at 5 feet down (not quite true, but close enough). At the surface it varies with the day. ...
8
votes
2answers
623 views

Can a machine process and run on $CO_2$ and $H_2O$ for an $O_2$ supply?

On Mars studies have shown that carbon dioxide solidifies to dry ice at the poles. During the winter months can electrolysis be applied to collected and then contained liquid $CO_2$ to replenish ...
8
votes
1answer
337 views

How thick would a Marscrete structure need to be to provide adequate protection against radiation?

Regarding a manned shelter on the surface of Mars... With all of this esoteric talk of ice shelters, why not simply create concrete (Marscrete) buildings? The ice probably provides better radiation ...
38
votes
3answers
3k views

Flung debris in lunar landing

When a spacecraft lands on the moon, on unprepared ground, it must fling a lot of rocks and dust all around. If you are building a lunar base, the other components that are already there would be ...
3
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1answer
100 views

Chemical resources on the moon in relation to human occupation

Suppose large settlements are established on the moon with lots of people and industrial activity. Based on what we know, what chemicals that are needed for human life and industry might be lacking? ...
4
votes
1answer
135 views

What series of devices would you need to deliver to the Martian surface to manufacture concrete entirely in-situ?

It seems like you at least need the following: A self-drilling wellhead to reach the subsurface water, storage tank Some process for refining the regolith into the optimal composition, storage tank A ...