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Questions tagged [terraforming]

Questions regarding the artificial creation of Earth-like conditions on another celestial body.

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54
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4answers
16k views

Would terraforming Mars be possible?

Mars is a planet commonly brought up when talking about terraforming. Even if we were to manage to get past all economic barriers, and somehow form a thick atmosphere, would the lack of a magnetic ...
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7answers
70k views

How would it be possible to kick start Mars's magnetic field?

Jumping from this question about terraforming Mars, how would one mitigate the main obstacle, namely Mars's lack of a magnetic field? Are there any hypothetical processes that might restart Mars's ...
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5answers
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Which planet or moon would be most feasible to terraform? [closed]

In terms of practicality, which of the planets proposed for terraforming would require the least resources to make fully habitable? In other words, which would be the most practical given technology ...
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4answers
8k views

Could the Moon keep an atmosphere?

When we think of terraforming a body in our galaxy Mars gets lots of consideration as the closest potential body. But what about the Moon? It is currently beyond our ability to add an atmosphere ...
19
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2answers
2k views

Would terraforming Venus destroy its ionosphere?

In "Can Venus be made habitable?" we see that Venus's atmosphere would have to be substantially altered in order to terraform Venus. "Why has Venus's atmosphere not been stripped away by solar wind?" ...
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5answers
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Can Venus be made habitable?

Atmosphere of Venus consists predominately of Carbon dioxide and Nitrogen. Is it possible to convert the atmospheric Carbon dioxide into Oxygen with the help of bacteria by photosynthesis, and make ...
15
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5answers
2k views

Venus vs Mars for colonization

Why is Mars getting so much attention vs Venus, which to me seems like a much more attractive option, in regards to habitability. I've read that the upper atmosphere of Venus has the most Earth-like ...
15
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3answers
2k 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 ...
15
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1answer
2k views

How feasible would it be to move a Kuiper Belt object (a good sized one) into an orbit around Mars?

Reason I'm asking, it's seemed to me that the best way to create an atmosphere on Mars is by moving an icy planetoid/comet/Kuiper Belt object and basically smashing it into mars, though I think a low ...
14
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2answers
6k views

Place a satellite at Sun-Mars L1 to shield Mars from Sun radiation

Instead of placing many magnetic satellites close to Mars to artificially generate a magnetic field to protect Martian colonists from harming radiation, we could place a magnetic satellite at ...
14
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2answers
1k views

Why not bring life to Venus along with the next exploring mission?

Why not bring cyanobacteria and fertilizer to the atmosphere of Venus to improve conditions for life there by producing oxygen ? Planetary protection could be a reason. According to Wikipedia: ...
12
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3answers
5k views

Changing the rotational rate of a natural body

Let's say that for the purpose of terraforming, we need to speed up the rotation of a planet (like Venus), a moon or an asteroid to near Earthian day. How would we go about doing this? Can this be ...
12
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1answer
239 views

Are there any possible methods for keeping surface water on mars?

I've been reading this wikipedia article on terraforming mars. One of the major issues with terraforming mars is essential molecules and elements escaping the planet. There have been several ...
10
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1answer
8k views

If Mars had more atmosphere how warm would it be?

Looking at Venus, Earth and Mars, the closer you are to the sun the warmer you are. At the same time the warmer planets also have thicker atmospheres. ...
10
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2answers
1k views

How could an induced magnetosphere be created at Mars for terraforming?

In the long run Mars needs a magnetic field to keep a thick atmosphere and for radiation shielding, if humanity were to terraform it. Starting a dynamo in Mars' core seems forever impossible, but a ...
9
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1answer
391 views

If Mars has a frozen ocean, how can it be used by settlers?

Some of what I've read theorises that Mars' oceans evaporated and blew away, but it seems to me that (potential) observed water flows and exposure of (potential) water ice under the surface dust by ...
9
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3answers
420 views

Is there any experimental work being done on terraforming?

Beyond theory, are any organizations doing experimental work on Mars terraforming? In laboratory environments.
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3answers
380 views
+100

Balancing a mirror

A possible way of heating up Mars is to use mirrors to direct more sunlight towards the planet. I am not asking about the feasibility or cost of such a gigantic project, but I have a question ...
9
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0answers
905 views

Terraforming Venus with the Bosch reaction, using hydrogen from Jupiter [closed]

OK, so chemistry and physics are not my strong suit, so this idea is just cobbled together from stuff I've heard can be done. But I'd be curious if it is at all plausible, and what the most likely ...
8
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2answers
266 views

If I wanted to try to terraform Mars, who would have the authority to stop me?

Let’s say hypothetically I could fund a rocket ship and pack it with lots of biomaterial. Biomaterial that would hopefully survive the impact, reproduce and potentially alter the atmosphere of Mars. ...
8
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1answer
1k views

Where's the Nitrogen on Venus?

A lot of people tend to narrowly focus on only Oxygen, Hydrogen, and carbon when considering the suitability for life. But the organic processes that we rely on require more elements than just those ...
8
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1answer
972 views

How strong a magnetic field does Mars need to contain Earth-like atmosphere?

A quick follow-up to How would it be possible to kick start Mars's magnetic field? For example, the Venerean atmosphere is contained by merely an induced magnetic field. How powerful would ...
7
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4answers
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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 ...
7
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1answer
662 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 ...
6
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1answer
730 views

How plausible are the predictions made by Stephen Petranek at TED?

Here is the talk in question He talks about getting to Mars by 2027. He talks about a device called a WAVAR which will extract water from humidity. He also talks about a device called MOXIE which ...
6
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1answer
338 views

What type of rock or soil on Mars will give Nostoc Commune cyanobacteria the best chance to survive there?

Photo taken by YAMAMAYA Cyanobacteria are a group of photosynthetic bacteria, who use the energy of light to synthesize organic compounds from carbon dioxide, and producing oxygen this way. Nostoc ...
5
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5answers
2k views

Would it be possible to deploy a man-made magnetic field in Mars orbit for terraforming? [closed]

I know terraforming Mars has been a topic of discussion for a long time. One of the larger obstacles is the planet's weak magnetic field, which if I understand correctly is integral to containing an ...
5
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1answer
2k views

Could we fly on the Moon in Xenon?

The Moon is not capable of keeping an Earth like atmosphere, nor is it practical to keep satellites in lunar orbit. Which means all transportation and communication would need to be ground based. No ...
5
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1answer
237 views

Removing perchlorate from Mars surface soil

It's known that there's a lot of perchlorate contained in Mars' surface soil. But could we take the toxic part out and make it become plantable? If so, how might this be done in a practical way on ...
5
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1answer
214 views

What lunar legalities are currently in place?

I'm curious what treaties, if any, are in place as far as restricting military, engineering, or scientific applications on the lunar surface. e.g. Assuming someone definitively discovers there's ...
5
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1answer
307 views

Is there any life from Earth that can live on Mars?

Does Mars have any environment in which a plant, virus or otherwise would be capable of living on Mars without an artificial environment? Is there anything that can live below the Armstrong Limit on ...
5
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0answers
66 views

Would a terraformed Martian athmosphere even persist? [duplicate]

So I saw a question here mentioning that omnipresent idea of terraforming mars by somehow giving it more atmosphere (here it was melting/evaporating the polar ice caps). My problem with that is: ...
4
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1answer
91 views

Venus without the greenhouse

What would have been the approximate surface temperatures and pressure on Venus if its atmospheric composition was like the Earth's that is ,being composed primarily of nitrogen and oxygen,rather ...
4
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4answers
460 views

What is the most economical way to vaporize the CO₂ deposit near the south pole of Mars?

In April 2011 NASA announced that the Mars Reconnaissance Orbiter had found a large, buried deposit of frozen carbon dioxide at the planet's south pole. It has a volume of about 12,000 cubic ...
4
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1answer
138 views

Sulphur Hexafluoride atmosphere for Ceres?

So, I have read that the escape velocity of Ceres is 514 m/s, and orbital velocity(for a low orbit) is 360 m/s... Now, the RMS(Root Mean Square) velocity of Sulphur Hexafluoride at 72 $^o$F (23 $^o$C,...
4
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1answer
242 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 ...
4
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0answers
93 views

Should there not be a sulfuric acid free zone in the atmosphere above the equator of Venus?

The circulation in the troposphere of Venus follows an almost purely zonal flow, with windspeeds of about 100 m/sec at 60-70 km altitude, which corresponds to the upper cloud deck. These winds quickly ...
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0answers
145 views

Are we still able to terraform Mars using greenhouse effect?

In the last month, a group from University of Colorado, Boulder, published a paper on Nature Astronomy entitled "Inventory of $CO_2$ available for terraforming Mars", which was highly publicized on ...
3
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1answer
597 views

Is terraforming mars with only 4 nuclear bombs/penetrators in 10 years possible as this paper says?

Abstract: "Four, 100kg fusion warheads, launched from a Mars orbiter, can throw into the air, enough dust to cover Mars' South Polar Cap, darken it, and cause it to sublime through increased solar ...
3
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1answer
204 views

Is it possible to make open-air parks on Mars by putting oxygen tubes here and there?

Suppose you are sitting on a bench on Mars under open sky and under your feet there is a grate from which contantly there is an air flow. Under the bench there is a tube through which oxygen is ...
3
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2answers
165 views

How are organisms allowed be engineered to terraform Mars when NASA and others go through such measures to sterlize their probes?

There seems to be talk (and even some action done by DARPA) about engineering organisms to terraform Mars, however, current space organizations like NASA clearly do not want to get anything that could ...
3
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1answer
104 views

Could the sulfuric acid in the atmosphere of Venus be heated enough by concentrated sunlight to create water and oxygen?

The atmospheric pressure and temperature at about 50 to 60 km above the surface of Venus is nearly the same as that of the Earth, making its upper atmosphere the most Earth-like area in the Solar ...
3
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2answers
650 views

Bombing Moon and Mars: What would it look like?

To me it seems surprising, frightening, and sadly typical that before humans set foot on a celestial body, they plan to nuke it (1, 2, 3). What would a big explosion on Moon or Mars look like? I ...
3
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1answer
344 views

Could the Moon be terraformed by outgassing its oxygen?

The majority of the Moon's mass is oxygen. With energy it could chemically be liberated from its silicon et cetera compounds and be turned into oxygen gas. Given its low gravity, lack of magnetosphere ...
3
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1answer
71 views

Mathematical approaches to analysis of terraforming

The process of terraforming has been discussed at length in this site. I am wondering if there has been any mathematical analysis of how terraforming would take place in credible scientific ...
3
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1answer
189 views

Comet at Mars L1

If we placed a comet at Mars L1 point would we get a coma and tail that would add volatiles to the Martian atmosphere? I've also read comets create a bow shock with the solar wind, slowing it down, ...
3
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1answer
274 views

Is it possible to colonize planetoids by using perfluorocarbon lakes?

Is it possible to colonize planetoids using breathable liquid such as perfluorocarbons (PFCs) with dissolved oxygen and filling craters and depressions with it instead of building insulated habitats? ...
3
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2answers
879 views

Fixing Carbon in Venus's Atmosphere

I often wonder about fixing the carbon the atmosphere of Venus. Whilst there is no water meaning this is unlikely to be possible using biological means, is it possible that some kind of machine could ...
3
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0answers
48 views

Is there any moon in our solar system which we could terraform relatively fast? [duplicate]

I am just curious as to whether there is any moon in our solar system which could be terraformed or at least made into a livable moon for us. By fast i mean as fast as possible, given our current ...
3
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0answers
707 views

Artificial magnetic shielding for Mars feasible?

According to this article, the Martian atmosphere can be saved from being dispersed into space through an artificial magnetic shield. I'm interested in knowing the costs and mechanics that can make ...