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Questions tagged [colonization]

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

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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 ...
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Can Mars provide vitamins?

How long can nutrients found in Mars along with an algae diet sustain human life?
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124 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 ...
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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 ...
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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 ...
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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/...
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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 ...
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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 ...
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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? At the end of the winter with the container ideally full ...
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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 ...
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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 ...
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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 ...
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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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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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123 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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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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 ...
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156 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 ...
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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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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 ...
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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 ...
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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 ...
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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 ...
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Martian Watershield Greenhouse

Would a greenhouse using a watershield 10 meters in depth be able to receive enough sunlight to grow crops?
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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, ...
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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?
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108 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 ...
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1answer
184 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 ...
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166 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 ...
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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 $...
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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 ...
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157 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 ...
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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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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 ...
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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 ...
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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 ...
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620 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, ...
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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 ...
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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 ...
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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 ...
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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 ...
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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. ...
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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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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 ...
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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 ...