Posts tagged atmosphere
I want to have an intelligent life-form on a planet, but I want this life form to be technologically limited because of the lack of discovery of fire. What changes would have to occur in the atmo...
I'm thinking of using this as a method of separating a planet's technological and cultural evolution, then having a sudden clash as the more advanced one becoming able to cross the storm belt. This...
I want to create a gas giant planet. The parameters I would like for it to have are: It should have a large layer of gas within its atmosphere that living creatures including humans can survive an...
A previous question's answer established that naturally occurring positrons could be gathered through positron-emitting isotopes. I've started looking into means that these isotopes could be gather...
I recently watched a special on cave divers in the Yucatan Peninsula and part way through that show the divers encountered a feature called a Halocline, a meeting of two different water masses of d...
Suppose you have a planet covered in a deep layer of supercritical CO2, and animals evolved to live in it. Discounting the ones who crawl along the bottom, would their method of locomotion be more...
Imagine an earth-like planet on which gravity is reduced by 20%-30% every 15 months. The low-grav-effect should start slowly, reaching its peak/bottom of round about 0.7 g after 6 weeks and should ...
What would be the design of a near-future extreme-cold environment suit? Consider a protective suit that is not a space suit because it doesn't need to augment the pressure felt by the body. It d...
In a fictional setting, an Earth-like planet is orbiting another, Jupiter-like planet. For explanation see my previous question Which astronomical or cosmological event would explain periodical lo...
The inspiration came from the music in the title sequence of the film Alien. The idea is a planet that humans have colonized where it's almost always drizzling slightly. It's always dark but there...
Does anyone have any ideas on a world with clumps of different atmospheres? Like what if a world has weather patterns that move around different atmosphere types; a mostly sulphur atmosphere, oxyge...
There are seven planets, and each one has a different coloured sky. One has red, one has orange, all the way up to indigo and violet. Of course, they don't have a sky this colour all the time, but ...
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 decr...
I'm designing an environment suit for humans to wear while interacting with a benevolent alien species while in alien space. Here's my question: How much solid oxygen (by mass and volume) it woul...
I'm working on a story that has several worlds but I focus only two of them now. World A is our present, world B is a fantasy-ish one which is very similar to ours but evolution has been different ...
Assume that a person is shielded by magic. The only thing this magic does is to keep air away from that person (ignore for now any consequences to said unfortunate individual). Aside from this, the...
I was thinking of making flying islands part of a planet ring, but the problem was that they wouldn't be able to host life unless they were inside the atmosphere of the planet, but at that point it...
So, I was looking at the temperature variations in Earth's atmosphere and noticed that it gets extremely cold in some of the upper portions. So I was wondering, could a low gravity world hold onto ...
In this scenario, light-bending camouflage is already in use to prevent civilians from seeing any spacecraft as they enter the atmosphere. The question is whether it is realistic to visualize this...
I have read questions such as these two about aliens adapted to environments with high atmospheric pressure experiencing negative effects when exposed to Earth's comparatively low atmospheric press...
I'm assuming that to hold onto more atmosphere, the planet would have to have more gravity, or the atmosphere itself would have to be comprised of denser gasses. So, assuming that the planet has a...
I want to make a creature capable of filter O2 from normal air in order to make several things... (filter air toxins, increase partial pressure of O2, etc). Could be possible make an organic memb...
Would it be possible for a spaceship of some sort to descend from space and through the atmosphere of an Earth-like planet, not land, then turn around and head back into space? In other words, coul...
I have this planet in my story that is similar to Earth in many ways. It is inhabited by humans, the flora and fauna are similar, the atmosphere is similar... except not quite. On Earth, the atmos...
If I were to attempt the colonization of a planet with preexisting life, how would I manage to pinpoint a candidate planet from the comforts of Earth's orbit? I am interested in the stars somewhere...
Start with a planet just like Earth as of today (whatever today means when you are reading this). For simplicity's sake, disregard mankind's continuous spewing of greenhouse gases into the atmosphe...
Imagine a desertic planet, large dune seas and barren rocky wastes ... Mountains and the like suggesting a past geological activity and even water once exhisted on the surface. Now though the pla...
BACKGROUND: I have been working on a game called Rise: The Vieneo Province. Vieneo is a terrestrial moon (all details can be found here) but we have an atmospheric composition we arrived on from ...
A present day society has had to relocate from their coastal community and have taken refuge at the top of a very high mountain roughly 10,000 feet above sea level. This mountain is the most promin...
In Larry Niven's short story "Bordered in Black", there's a planet (Sirius B-IV) with much lower gravity than Earth. As a result, the planet has a gentler atmospheric pressure gradient, i.e., the a...
This might be a little difficult to explain, but basically: the concept of "atmospheric ocean" is a gas that is found pretty much everywhere on the planet. Probably very dense and sinks to the surf...
Okay, so imagine a situation where most of earth's atmosphere is lost, the pressure at sea level is somewhere around 0.3 atm. If it matters, let's say that this is the result of the gradual escape ...
This post: How to increase air density on a planet? explains most of the problems I have been having, and fixes them. My current problem is as follows: On a planet with an air composed of (roughly)...
Have been building a game called Rise: The Vieneo Province. Vieneo is a terrestrial moon (all details can be found here) but we have an atmospheric composition we arrived on from another question:...
Composition: Nitrogen 53% Helium 16% Oxygen 13% Neon 10% Argon 6% Hydrogen 2% Pressure: 2.13 bar I think the air should be breathable, but I'm concerned about the effects on flammability and wind ...
Is it plausible that a planet can be breathable despite the color of it's atmosphere? My story takes place in an alternate reality in which what people thought the Solar System was like in the 50s,...
Another question concerning the Tetrapi, I would like to know if having haemocyanin-based blood (copper-based blue blood) would be an advantage over having haemoglobin-based blood (iron-based red b...
It's common knowledge that the atmosphere of Venus is too inhospitable for a proper landing. The most concerning problem with that is pressure. Venus's atmospheric pressure is said to be 92 times...
Ceraon is a moon with advanced megafauna and flora. The moon is pretty small, so gravity is only about one fifth of that on earth. Much of the life-preserving atmosphere is retained through a gre...
Liquefaction of gases is physical conversion of a gas into a liquid state (condensation). I found that liquefaction is used to get liquid air and then split it into liquid compounds O2, N2, CO...
Relating to this question: Ensuring an endless war, and an endless stalemate In a planet such as our Earth, what climate conditions and/or atmospheric changes would be required for the formation a...
I know the default will be blue, but just HOW blue, i.e., wavelength in nanometers? I have a world with the following stats: Radius: 4628 km. Mass: .35 Earth (2,09076 x 10^24 kg). Atmospheric D...
My current story is set inside a hollowed out dwarf planet (i.e. Ceres) with an artificial gravity generating "mesh" within the shell. This Gravity Mesh can generate a gravitational field that can...
For space travel: would you need to recreate earths air composition? Or could you just get by with the top 2 or 3 main components, i.e. either 78% nitrogen and 22% oxygen, or 78% nitrogen, 21% oxyg...
I want to create a world that abides completely by our understanding of reality. The whole premise is that "If the Universe is large enough, this would all be non-fiction", assuming the laws of phy...
This is a follow-up to an earlier question. My intent here is to work out the details, and explore the potential consequences, of one of the many excellent answers I received. Relevant questions ha...
Here is the situation. A planet fairly similar to Earth is orbiting binary stars, one O or B type and one F type. Sometimes the stars are close together in the sky, sometimes far apart, sometimes o...
I was wondering if a planet that has a higher escape velocity but lower surface gravity lose its atmosphere more faster/slower than a planet that has a higher surface gravity but lower escape veloc...
I'm creating a universe where ftl space travel is possible by folding space. You can only travel point to point with direct line of sight. The example I plan to give in the book, to clarify, is th...
I've discovered some ways of coloring the atmosphere through personal research: The atmosphere could be colored by particles or colored gases (as on Mars, unless I'm wrong) The atmosphere could b...
