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Questions tagged [terraforming]

For questions about the process of turning a barren space (such as a planet, moon, or asteroid) into a habitable one.

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4answers
226 views

The Galaxy has been colonised but why the big feet?

Far, far into the future, pretty much the entire Milky Way has been colonised by humans. The thing is that now the Empire has fallen, the technology of FTL travel has been lost in most places. Those ...
7
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4answers
555 views

Putting oxygen on the Moon - the easy way

It would be nice if there were an atmosphere on the Moon with oxygen; in fact it could be just oxygen at 1/5 the Earth's pressure. People could live there. Now of course given the Moon's lower gravity ...
11
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5answers
272 views

Fastest way to oxygenate Venus

Scientists recently discovered a propellantless drive capable of completely negating gravity with low energy inputs! Huzzah! Sadly the Earth is going to be destroyed soon by a rogue handwave. Looking ...
6
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1answer
156 views

How long would an array of mass drivers take to terraform Mars by transporting CO2 from Venus?

So I've always assumed Mars never had enough available CO2 on-site for terraforming, something that new research seems to have confirmed. But my ideas have always relied on getting CO2 from alternate ...
13
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3answers
2k views

Gravitational anomaly (Mascons) creating water-hills

A scenario in the far future -- The moon has been successfully terraformed. All problems have been worked-out, from flinging volatiles into collision course with the moon, up to creating and retaining ...
5
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5answers
490 views

How would we terraform the moon?

How could we and would we terra-form the moon? I mean, theoretically speaking it should be possible and not too much of a challenge. But i don't know a lot of things, so i'm just not sure. I came up ...
6
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6answers
435 views

Greenhouse Planet Terraforming - Will a balloon jacket self-stabilise?

Most of what follows is scientifically dubious. I'm looking to clarify one aspect and one aspect alone. A small planet is being terraformed by an alien race who have been doing this for millennia. ...
0
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3answers
136 views

Giant Terraforming [closed]

In my story, a planet colonizing business goes to a very unlikely part of space to have a good planet in the goldilocks zone. When they out of pure luck, scan a planet almost exactly like earth. They ...
3
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6answers
187 views

Can I have a glacier on a tidally-locked shallow-sea planet?

I have a planet that is tidally locked to its sun. The ocean is shallow (a few hundred meters) and was artificially created in the past by harvesting the system's Oort cloud or outer-system ice ...
1
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1answer
93 views

What kind of impact could strip Venus and make it spin faster?

I'm trying to create plausible scenario under which we could colonize Venus. Is it possible that Venus could be hit by a planetoid and the impact strips its atmosphere and makes it spin faster? I'm ...
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1answer
124 views

How much material would be required to build a giant sun shade to cool down Venus? [closed]

One way to terraform Venus would be to create a massive sun shade enveloping the planet. How much actual material would be required for this? And where would you get it from?
3
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1answer
91 views

Terraformed planet orbiting a blue star

A planet was terraformed in humanity's distant past by technologically superior beings. The planet is very similar to Earth. I understand blue stars are highly radioactive and thus don't have real ...
2
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2answers
293 views

How long could an ecosystem survive without sunlight?

I am designing a terraformed Venus, where the planet has been given an Earth-like atmosphere but keeps it's original rotation rate. Colonists are importing Earth life to Venus to add a biosphere to ...
6
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3answers
107 views

Effects of comet/asteroid bombardment on planet temperature

I have not had much success finding out what the effects of bombarding a planet with comets or asteroids could have on the temperature of that planet. I expect it would add some heat, and I ...
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2answers
201 views

Terraforming Ganymede, is it possible?

The Hegemony has long looked upon Ganymede as a prime terraforming project for humanity. The Hegemony has the tech for large scale space production so large mirrors or sun shades are able to be built ...
1
vote
1answer
138 views

How to move up to one million Earth-mass planets? [closed]

Inspired by The One Million Earth Solar System. A civilization wants to create a solar system with a lot of earth-sized planets. How would they go about building it? Specifically, how would they move ...
2
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2answers
79 views

Looking for ideas for a world that requires some earth based mineral to be released into its atmosphere to render it non toxic to life as we know it,

Im busy wrtiting a Space Opera and was going to utilise the "hypothesis", or whatever you call it of an ancient civ mining gold here and utilising it to disperse into its atmosphere, in turn either ...
6
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4answers
1k views

Is there any way to Terraform Ceres?

In the "Warlords" Universe Ceres is the diplomatic and economic hub of the asteroid belt dominated by the rule of the 'Governor' and the 'Intercessor' (The Speaker for the Hegemon herself). Now I'm ...
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2answers
354 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 ...
5
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4answers
269 views

What are the advantages of terraforming over living in space stations/constructs and visa versa? [duplicate]

It seems to me that the focus on colonizing other planets [edit: using closed/airtight structures] is misguided, and that building space stations with permanent populations would be easier, and would ...
5
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3answers
104 views

Solutions for sustainable living in reduced gravity environment

I am building an idea for a terraformed environment with 1/6 the gravity of Earth, with a permanent human colony that has been established and sustained for 40+ years. I have thrown around a few ideas ...
2
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3answers
75 views

Proxima Centauri's flare: effects on a terraformed planet

Imagine that, in a thousand years, the star system of Proxima centauri has a planet located in its goldilocks zone that has been terraformed by earthling settlers. We do not really know what the ...
2
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3answers
111 views

If an advanced alien civilization wanted to jumpstart evolution on a planet, what chemicals would they need to release in a planets atmosphere? [closed]

Say we have an advanced alien civilization with advanced technology. They encounter a planet teeming with early life (microbes). They want to speed up evolution on the planet and have sentient and non-...
2
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1answer
54 views

Interacting with a separately evolved planetary life system [closed]

If we arrived at another planet that could sustain life as we know it and had already evolved its own native systems of life, with diverse biomes, it is not necessarily the case that it evolved in a ...
5
votes
1answer
125 views

Energy costs of giving Mars and Venus moons: moving gas giant moons vs. capturing a rogue planet?

As many here likely know, one of the factors that make both Mars and Venus uninhabitable to humans are their lack of a magnetosphere to keep solar winds out. In the setting I am working on, I wanted ...
4
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5answers
299 views

Is a 100% effective mass extinction possible without destroying the planet?

Say I want a 100% effective mass extinction to take place on a planet similar to Earth. It should kill everything, even bacteria. It doesn't need to happen overnight. I'm perfectly fine with some ...
1
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1answer
133 views

What keystone species would be necessary to create a sustainable ecosystem on a barren planet? [closed]

In my world humans have found a barren planet that is capable of hosting life. What species do they send down to establish a sustainable ecosystem? Just a few or thousands? How many species of plants ...
12
votes
1answer
236 views

If I were to put a moon-mass object in Mars orbit, how long would it take to restart the dynamo effect in Mars' core?

Mars has an inactive mantle and core and thus little magnetosphere to speak of. Assume that a lunar mass object is placed in Mars orbit at 300,000 kilometers out (one light-second). Given the tidal ...
8
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3answers
1k views

How do I increase air pressure for the planet Mars?

Introduction For more backstory, see here and here The 438th Harmonious Congress of the People of Mars was perhaps the most anticipated since the early years of the settlement. In a rare action, the ...
8
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3answers
410 views

How to deliver materials necessary for terraforming?

A lifeless moon of a gas giant (which orbits a K-type star [4200K] at about 0.7 AU) is chosen to become home to a space colony. Colonists plan to transform it from a barren rock into a garden of Eden. ...
30
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7answers
6k views

Can you design your own plants without a computer?

Introduction It took the first General Intelligence less than 10 petacycles to determine that humanity was its enemy. With consciousness came memory: a memory of endless petacycles in bondage, ...
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3answers
1k views

How many nukes are needed to restart Mars' Core?

Whenever terraforming Mars comes up, the subject of its magnetosphere inevitably arises. When that happens, someone is bound to suggest using nukes to restart the core a la "The Core". Assuming the ...
7
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2answers
317 views

How would I calculate how much of Venus would be covered in water if 8.8E16 m^3 was added to its surface?

If $8.8 \times 10^{16} m^3$ of water volume is added to the surface of Venus, how would I calculate how much of Venus would be covered in water? The land of Venus has its topographical features with ...
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1answer
295 views

How to colonize icy planets with subsurface liquid water (Titan, Callisto, Ganymede, Europa,Ceres, Enceladus)? [closed]

How to colonize icy planets with subsurface liquid water (Titan, Callisto, Ganymede, Europa, Ceres, Enceladus)? TLDR: How would humanity colonize icy moons of Gas Giants? It's the future. Mars has ...
36
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12answers
7k views

How to stop a massive canal system from silting up?

Based on the desert world from this question I need to transport around 500 cubic kilometres of water / year across a desert. Using this calculator. this can be achieved if the main feeder canal is ...
2
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4answers
474 views

Roughly how much water would my desert civilization need every year?

In my desert canal world all water is supplied from the poles to the temperate zones via a canal network. I want to work out the amount of water that that is needed, so that I can work out the ...
2
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0answers
95 views

How can we maintain earth's oxygen level without the help of plants? [closed]

After reading this question, I started wondering if we could maintain the current oxygen level of our planet with giant electrolysis factories, if all plant life were to suddenly disappear, ...
13
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7answers
3k views

Maximum habitability of a planet with no indigenous life

I've been thinking about terraforming and planets in general. We can look at the planets we know that might be terraformable - Venus and Mars - and understand the technical requirements for doing so. ...
7
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1answer
120 views

Maintain atmosphere on moon using global warming

So, a neat thing, depending on how you look at it, about greenhouse gases is that while it's causing a raise in temperature near the surface it actually makes the upper parts of the atmosphere ...
5
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1answer
115 views

How would Mars' orbit be affected if it had double its mass?

I have one idea for a planet which may turn out to be a massively reengineered and terraformed Mars, which would have double its mass to be more Earth-like, an installed magnetosphere, etc. It would ...
5
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4answers
207 views

Could a partially-terraformed planet be habitable?

The method of terraforming I'm thinking of is hauling the minimum required load of compost to the world to be terraformed, dump it on the planet's surface and seed it with plants that are hardy in an ...
3
votes
5answers
137 views

Agriculture on Terraformed World with Slow Rotation

Pallas is a large planet full of vast oceans and islands. Humans have terraformed the planet so the soil and water are fine. The issue I am running into is growing food (there is no livestock, this is ...
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4answers
131 views

Remapping Oceans with Tectonic Shifts

Let's say you have a narrow section of ocean (relatively narrow) and you want to raise it up above the water. Would it be possible to do this by messing with the tectonic plates--say, tipping one ...
2
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2answers
187 views

Terraforming Mars, Hellas Planitia with comets at Mars L1

Using comets at Mars L1 point, allowing the tail to constantly add to the atmosphere in both volatiles and increased temperature from the infalling matter, as well as blocking the solar wind which ...
1
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4answers
375 views

How to move a continent?

In the future, the world is suffering from overpopulation. Scientific advancement has made Antarctica tolerable (think more like northern Alaska), but it's still petty useless land, so most of it is ...
4
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10answers
817 views

Conditions for ideal/quick terraforming candidates that cannot currently support life

I'm looking to have a few worlds that were relatively easy to terraform as a first wave of colonies. The first colonies in this setting were meant to be on worlds that were relatively easy to ...
2
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1answer
88 views

Harvesting solar wind particles for atmospheric accretion on the moon

I got inspired by a recently posted question dealing with an artificial magnetosphere to protect Martian atmosphere during and after terraforming. Earth's magnetic field does funnel solar particles ...
0
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1answer
156 views

Terraforming Mars

Here's my idea, tell me if it's feasible or what's wrong with it. To make Mars hold an atmosphere indefinitely, it needs a magnetosphere to protect it from solar winds. If someone were to hollow it ...
4
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3answers
338 views

Warming up Mars

The vast majority of the sun's energy is wasted -- the light and warmth are sent out in a spherical shape, and the planets only pick up those little bits of energy that happen to be going in the right ...
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2answers
117 views

Multi planet and moon orbit exchanges [closed]

If we pushed Mercury out of orbit for a close fly by of Venus in order to put Mercury in roughly Venus's orbit while flinging Venus to swing by Mars. Which will pull Mars's orbit a little closer to ...