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Questions with this tag are concerning people living in space who are non-native to space.

12
votes
12answers
3k views

What could explain why trees only have 12 rings?

A colony of space travelers makes their way to their new home planet. After landing and establishing their base camp, a wood worker begins to cut down trees and notices that none of the trees have ...
4
votes
3answers
147 views

Where on my spaceship can I justify more space for my humans?

Spaceships are a peculiar thing; as are the Humies - the hardy folks working and living inside these hunks of metal for weeks or months at a time. Ironically in space living-space is at a premium. Any ...
27
votes
19answers
7k views

If we can have “all the comforts of home” in space why would we settle planets?

This is something that is starting to bug me, I'm creating a universe in which space travel is cheap and comfortable and space habitats can be built roomy enough that no-one actually needs to live on ...
10
votes
5answers
744 views

Hiding a handful of immortals on a Generation Ship?

I have a handful of immortals that have spent the last 6000 years stuck on planet Earth. They really, want to get out of here. They missed their chance back in Egypt before The Fall of the Pharaohs**. ...
12
votes
13answers
1k views

What's a plausible-sounding technobabble explanation for Mars to be a forest world supplying Earth with timber? [on hold]

In the story I want to tell, it's a thousand years in the future and Mars has been terraformed into a forest world (something like the forest-moon of Endor). It's settled in a few small towns and ...
7
votes
6answers
4k views

Why shouldn't we turn every star system into a Matrioshka brain?

Given the amazing computational power of Matrioshka Brains (M-brains), all the amazing things it can do, including but not limited to the following. Assuming the grand unified theory (GUT) is ...
0
votes
1answer
104 views

What materials would be useful in constructing a Space Station?

For the obvious reason of weight, our modern space stations and satellites are made out of metal or lightweight compounds to reduce cost. In a quick Google search, about $20,000 per kg is the cost, to ...
5
votes
1answer
104 views

Economy gain if any for mining moons like Titania?

In Warlords I envisioned the "outermost colonies" around Neptune and Uranus to be a political faction of their own. Separate from the inner planets (Hegemony) and the Jovian and Saturnian leagues. To ...
5
votes
3answers
116 views

Would braces help a human born in micro gravity “walk” on a station with gravity

In Warlords poorer families in the belt or some of the colonies are not able (for whatever reason) to pay for 'gravity treatments' or possibly helpful drugs and are forced to live and raise their ...
1
vote
6answers
189 views

How might an economy in which multiple planets are involved function?

I created the above illustration to help convey my meaning, here is what everything means so that you can read it effectively: E = Earth V = Venus M = Mars The dots in the lower left hand corner ...
6
votes
3answers
148 views

How to absorb matter and transform it to energy

I'm writing the last issue of my comic and I'm in trouble. My villain is a member of a cosmic cult that wants to absorb everything in the universe to create a conceptual/energy pangea out of space and ...
25
votes
13answers
5k views

The worlds between, the consequences of instantaneous FTL

For some time I've been working on a universe with non-instantaneous Faster-Than-Light travel, but I've decided to open a new universe with instantaneous travel. So I'm working on the differences that ...
-2
votes
2answers
99 views

Why colonize Mars before Antartica? [closed]

Antarctica is more suited for human life than Mars. It is also a lot closer and safer to travel to. Why colonize Mars before Antarctica?
2
votes
2answers
75 views

How would the length of a day-night cycle affect a planet's climate?

I am envisioning a habitable world with an atmosphere comparable to earth's in which one day is extremely long (>100 earth years). Human settlers have successfully colonized a small portion of the ...
5
votes
2answers
107 views

Will be possible in the far future to create an artificial Moon for Earth and terraformed planets?

Will be possible in the far future to use megascale engineering to create an artificial hollow moon to give Earth a big moon in the sky like in billion years ago? Since it would be hollow, it would ...
-2
votes
4answers
145 views

Why would the Terrans make their Capital so remote compared to their territory?

Backround So, in my world, Terrans, also called humans, have colonized a hefty amount of Milky Way Territory, and have many subjects under their rule, about 200 billion spread across a space about 1,...
7
votes
2answers
177 views

Would Gecko Materials Work In A Vacuum

Geckos use the van der Waal force to stick to things, an effect that humans can replicate and make various materials that utilize such (like extra sticky gloves). My question is, would these work in a ...
5
votes
9answers
314 views

Oh crap, it’s 2020ad, and the Earth is about to explode! Can we make it to the stars?

Okay, not literally Krypton style, but let's say some local astronomical event is going to render every rocky surface in our solar system totally uninhabitable. Details aren't terribly important, so ...
10
votes
8answers
324 views

What might cause body-modest human planetary colonists to need to practise nudism

The Context A few years from now, perhaps around ten years or so, after first contact with star-travelling aliens, humans have acquired FTL and other technology making a new diaspora of humanity to ...
-2
votes
2answers
150 views

How long would it take to colonize the galaxy with FTL? How long before colonization space is at a premium? [closed]

It's easy to find search results for how long it would take without FTL - but I'm wondering how long it would take with FTL, and there don't seem to be many estimates for that. Some very rough ...
3
votes
5answers
252 views

Will be possible in the far future to use megascale engineering to create a ringworld around Earth?

I mean in the far future megascale be advanced enough to allow the construction of a ring world around Earth or around a low mass star( a red dwarf for exemple). If yes, how big Earth would look from ...
1
vote
2answers
138 views

What Technological Regression Might a Spacefaring Civilization Experience? [closed]

This is a broad question, but the premise is fairly simple: what technological advancements that we take for granted today might be lost, or might no longer be necessary for a spacefaring civilization?...
1
vote
3answers
155 views

What aspects of life on another planet would take several days to negatively affect humans? [closed]

Humans have landed on a planet that to the untrained eye appears very Earth-like. What small, at first unnoticed, differences in the environment would eventually have a negative impact on the humans ...
-4
votes
3answers
103 views

What to do with children who don’t fit into their roles? [closed]

On a spaceship heading to a far off star system, there exist a community of children who have never seen earth, and where all gestated by artificial wombs and raised by surrogate robots. There are ...
2
votes
6answers
174 views

How can as many probes as possible be sent to nearby stars?

In the near future, say about 50 years, the most powerful governments are starting to compete for control of interstellar resources. The first step is to send a probe or probes to a neighbouring star ...
7
votes
3answers
173 views

Plausible scenario that would cause and advanced space colony be knocked back into the Stone Age?

In the year 2340 on the planet Ionia, a small colony of about 20,000 people was founded. They were camped out near a small lake between two canyons. The colonist all came from advanced planets like ...
2
votes
0answers
30 views

How many people would it take to colonize Mars? [duplicate]

To ensure a self-sufficient colony, there would need to be enough people to ensure a diverse gene pool, a wide variety of technical experience, and enough bodies to work farms and such. How many ...
4
votes
2answers
107 views

Property prices in a rotating space habitat? [closed]

In a rotating space habitat, something like a Bernal Sphere, the 'equator' would have stronger gravity than the location closer to the 'poles'. If people living there have to buy their own house (and ...
3
votes
5answers
130 views

Expanding a space habitat

Let's say that I start with a Stanford Torus that can house some amount of people. Over time, more and more people start living there, to the point it starts getting crowded. How could I expand the ...
29
votes
5answers
4k views

Can we stay healthy if we experience microgravity for 8 hours every day?

Let's say that at an asteroid mining site, the workers live in a rotating wheel space station that can produce 1g. They use Earth's 24 hour day, and for 8 hours a day, people go to the asteroid to ...
10
votes
7answers
2k views

How to explain the lack of artificial pollination in space colonies?

My story is set in the future where space travel is cheap and humanity has colonized Mars and some parts of the asteroid belt. Asteroid colonies can grow their own staple food, but crops that require ...
4
votes
4answers
215 views

Heat regulation in an asteroid base powered by a small nuclear reactor

So, I’m writing about the siege of an asteroid base. This asteroid is near the outer edge an asteroid belt at the solar radiation equivalent of Saturn’s orbit from its star (although the raw distance ...
6
votes
3answers
220 views

What are the economic pros and cons of colonizing a low gravity world vs a high gravity one?

This is the sister topic to this question: What are the military pros and cons of colonizing a low gravity world vs a high gravity one? The specific question being asked here is, what specific ...
6
votes
2answers
717 views

What are the military pros and cons of a low gravity world vs a high gravity one?

I've seen this question raised in several different bits of sci fi media. In games its often that low gravity = lower construction cost or some such. But I've begun to wonder, is it really that cut ...
22
votes
10answers
6k views

How would a lunar colony defend itself against aggression from Earth?

Assume that the with the technology level of the near future a self-sustainable colony has been established on the moon. For some reasons a conflict between this colony and some powerful nations on ...
0
votes
1answer
114 views

Could a blimp house an entire colony on Mars?

I had a few questions on blimps and the surface to weight ratio could be used to help slow the decent onto Mars. Inflated in space could a blimp built big enough with everything needed to jump start ...
4
votes
4answers
478 views

How would the US re-conquer a Moon Base?

The year is 2030. The US has set up a moon base with about 2,000 people. The base can theoretically survive indefinitely, growing it's own food and 3d-printing supplies, but in practice it needs ...
26
votes
8answers
5k views

How should fledgling planet colonies deal with supply crews suffering from barophobia (fear of gravity)?

Premise In the movie Gravity, gravity embodies the persona of the film by virtue of its absence. It purportedly leaves the audience with a sense of fear of the chaotic zero-G environment and likewise ...
7
votes
3answers
305 views

How long would an abandoned surface colony on Mars physically last?

Humans with a level of technology roughly equal to the present day, not more than a decade or two more advanced (e.g. they might have slightly more efficient rockets, or a more miniaturized comm ...
33
votes
11answers
6k views

What skin colour would living permanently on the moon select for?

The context: There is a population of people surviving on a lunar-analogue's surface, descended from the crew of a crashed spaceship. The rest of their society is not relevant to the question, but ...
4
votes
2answers
144 views

How far would reflected light penetrate into the interior of a McKendree cylinder from windows at each end

A McKendree cylinder is a rotating space station that is 920 km (580 miles) in diameter, and 4600 km (2900 miles) in length. This version would orbit the sun at 1 AU (at the same distance as earth). ...
4
votes
1answer
96 views

Lunar society and survival of technobarbarian survivors of space-ship crash [closed]

The Premise Generations and generations ago, interstellar war engulfed an earthlike system. One casualty of this war was a sizeable vessel that was crippled and crash-landed on a moon orbiting an ...
4
votes
2answers
171 views

How can you realistically set up a “Space industrial complex”

Imagine that the world has drastically changed from what it is today. For the first time humanity is united under one global banner in the aftermath of a devastating WWIII. In fact, the war was so bad ...
-2
votes
3answers
196 views

How would a space station operate if it had a population of roughly 1 billion people? [closed]

This space station would have artificial gravity similar to Earth's. It would not be orbiting a planet, but instead be orbiting a much larger celestial body, such as a star. Population growth is ...
4
votes
12answers
400 views

Self defense on Mars

Here's the situation: Mars has been colonized in the near future – tens or hundreds of thousands of people live on Mars. For political reasons, EarthGov is against sending weapons to Mars; and, they ...
6
votes
6answers
640 views

There's no oil in space?

On earth, all sorts of machines require heavy oils and lubricants in order to function correctly, be it bearing grease, engine oil, transmission fluid or hydraulic oil, the majority of which are ...
1
vote
7answers
331 views

The Moon needs water--but how?

So SpaceX and the like are well underway to colonizing the Moon, but they've hit a snag. The colonists, of course, need water--and lots of it, for drinking, preparing food, growing plants, breathing, ...
13
votes
18answers
4k views

How to keep my colonists primitive?

The story will take place near a galaxy filled with space faring civilizations. In this galaxy, a small group of scientists realize that their side is on the losing side of a war that will probably ...
2
votes
5answers
323 views

What reason would give the most benefits to a Progenitor race for creating sub-races? [closed]

The question has been put On Hold while I develop another question in the Sandbox area of StackExchange. Didn't know about the Sandbox? Check it out: StackExchange Sandbox for Questions What reason ...
3
votes
3answers
229 views

How long would it take to build a colonization ship?

I am creating a history for my galactic civilization, and was thinking that the first colonization ship might be launched around the year 2200. World War Three Just a few years from now, a third ...