Posts tagged atmosphere
I have dinosaurs, I have an asteroid I want to save the dinosaurs from the asteroid, but I'm not allowed to use the giant laser again, after that incident in Alderaan. So I have only one chance lef...
Some Details Suppose an Earth-like world with the following changes: Atmosphere: 67% nitrogen, 31% oxygen, 2% other Average surface temperature: 16.7° C (62° F) Day/night cycle: 20 hours Gravi...
Assume that we have a earth like planet,orbiting a sun like star. On which have all the right ingredient:atmosphere,liquid water,molten metal core.....etc for the existence of the life as we known ...
So I'm wondering if it would be possible for humans to live healthily on a largely Earth-like planet that was covered almost entirely in salt water. Landmasses would all be islands, with only a few...
In the book Dune by Frank Herbert. Arrakis is a desolate planet composed entirely of deserts. Water is a precious commodity due to its rarity. The Fremen have found ways to live on its surface, des...
Imagine someone putting a battleship over a country, always in sight, in order to threaten them to not try anything funny. Imagine tech that allows to suspend the ship is not a problem. How high i...
I recently asked a question about how a world could have permanent cloud cover. The answer was to turn the world into venus. However, my purpose for cloud cover was to have the people living abov...
The inhabitants of my Earth-like planet live high up in the atmosphere at ~1500 meters. When they look down, I don't want them to be able to see the ground. I figure the best way to accomplish this...
Would a species which developed on a world with no atmosphere (i.e. the moon) survive on a planet with an atmosphere, such as Earth?
How would this effect nature as a whole and our living conditions if it does? The color is not too far from blue so it should be more feasible and not change the Earth too much.
Suppose you took earth and gave it approximately 3 times the air, with most of the extra being N2 or Ar. Combustion goes up with the partial pressure of oxygen. So unless we want to burn down the...
What I'm doing is trying to find a way to create an atmospheric cold trap that will maintain a temperature of approximately −200 degrees Celsius (−328 Fahrenheit). According to Wikipedia In as...
From what I've seen, a floating habitat about 50 km above the surface of Venus is feasible--the atmosphere is dense enough that breathable air is a lifting gas, and that would be about the height f...
I'm creating a world with different oxygen density, about 15%. When given same fuel and air pressure, how will the fire burn up in this 15% oxygen density atmosphere compared to our world? And the ...
This question may be a bit broad, but I'm basically wondering what minimal things humans need to have in an atmosphere in order to survive. Let's assume we have Earthlike gravity, and are only deal...
I'm working on a sci-fi/fantasy story that involves a future earth that has become tidal locked with the sun. Part of the story has an advanced civilization that has built a ring (halo) that circle...
When a grenade explodes in water, the shockwave does more damage to a human than when the same grenade explodes in air. I am aware that the incompressibility of water as compared to air plays a lar...
Let's say it's sometime in the future, and humanity has expanded outwards into the solar system, and we've genetically engineered some really big plants that can for some unimportant reason, surviv...
Our planet's best line of defense against the worst of the sun is the ozone layer. It is no thicker than 0.01 millimeters. It absorbs 97 to 99% of the sun's medium UV light (200-315 nanometers). ...
Let's use Mercury as an example, we can pretend it orbits in the habitable zone of the Sun, would Mercury's magnetic field be able to protect an Earth like atmosphere? And would the lower gravity m...
Say we had a planet which was a gas giant. Is it possible that at the core of the planet where meteors, asteroids, and comet debris had collected that there could be a layer of atmosphere similar t...
Inspired by this question, suppose that the Earth decided to move its orbit much further out to reduce the effects of, say, global warming or the effects of a dying sun (or far enough to make this ...
So, in this scenario, people are living in an Earth-sized planet, with an atmosphere. They travel via ultrafast train that carries them to the solid core of the planet, where they then transfer to ...
When thinking about a potential answer to this question about preventing flight in a cyberpunk dystopia, I had an idea that I do no possess sufficient knowledge to prove/disprove. Thus you'll be t...
For story reasons, I'd like one planet habitable, plausible, but in some noticeable way older than Earth. Just not all planets are 4,5 bilion years. Tidally locked planet that orbit red dwarf, save...
What would happen if the atmospheric pressure on Earth would suddenly start to slowly decrease? Let's say that the most precise prediction by scientists is that the air will be completely gone in 1...
Some of you have commented here: "How Do I Supplement Oxygen Intake?." I mentioned confidentiality, but that is no longer going to be a concern. We just want to do this right. The original concept...
I want to build a planet (or satellite) that: is smaller than Earth, has a thicker atmosphere than Earth but breathable, has neither intense volcanism, nor any extreme condition of that sort that...
Series Premise Made Short: For reasons that I'm not allowed to describe here (confidentiality), Earth's deciduous and tropical plant life largely dies off. A hardy and oxygen-hungry microbe infests...
Some estimates put the percent of Earth's surface covered by landfills at 0.02%. Even if the world composted and recycled as much as possible, we would be left with an insanely large amount of w...
What would happen to occupants of an O'Neal Cylinder if it suffered a massive hull breach on one of its ends i.e. the base of the cylinder? Specifically, those nearer to the breach. If the breach ...
Are there any reasonably plausible alternatives to the process used by our plants on earth (Carbon Dioxide, Chlorophyll, Oxygen) around which an ecosystem could be built in a planet with a complete...
I have an idea for a story in a post-apocalyptic setting where guns and other explosive devices unusable or otherwise impractical. Is it possible to do this by changing the atmosphere (either by a...
Is it possible to have a world that meets the following conditions? "¢ There are two types of air (in term of its gas mixture) "¢ Each type of air has its own creatures which cannot survive i...
I just had an idea "“ likely an absurd one "“ but it could make an interesting plot. Picture this scenario "“ Present day earth. (easy to picture) But, there is an antagonist. He has a facility ...
I am trying to build a truly alien form of life, and easily found several replacements for water, such as methane or ammonia, with there own unique advantages and disadvantages (Wikipedia has a won...
Assuming it was possible to create an artificial magnetic shield on the moon, would it be possible that a sufficiently powerful field could hold onto an atmosphere despite the low gravity. Thanks
An alien race wants to test out its new technology that modifies the atmosphere of Earth and other terrestrial planets, they decide to center it over Central Park, NYC. One of the first things they...
Suppose there was a race of aliens who had created engines for there spaceships that could operate at any speed under light, and Hulls strong enough to withstand the crushing pressure of earths cor...
I want to create a terrestrial planet with a very long lasting hurricane similar to the great red spot, I assume the planet will have to be covered by ocean. Could there still be some small islands...
My question is pretty simple, all the details about the planet are pictured below.
What colour will planetary rings made up of dust and rock (not ice) appear to be? Would there be a difference looking from space and from the surface? More importantly, how will the rings affect t...
I've seen a couple questions before (like this one and this one) that ask about the habitability of a planet, with a key part of that being if the atmosphere is survivable. It seems like we should ...
Assumptions for the story: The rocket pack is not unlike the scenario of the movie when I was little, "Rocketeer," in terms of viability. I have hand-waved it in my story. The rocket pack should...
So let's say you have a Dyson sphere that is 5 kilometers thick . Now, it isn't solid. It's meant to be inhabited. There's the inner shell which is completely covered with solar panels and any oth...
I have already taken into concern renewable sources and several other factors. Ventilation Oxygen easily gets into this underground system via diffusion and likewise CO2 easily goes out. Plants a...
I'm a newbie here and I'm slowly building a story based on Ancient Egyptian mythos that revolves around a primarily solar powered city in a vast desert. There will be magic and Gods involved, but I...
I'm piecing together the biology and ecosystem of a Titan-like cryoplanet. And I want it to have clear or nearly-clear skies instead of Titan's complex hydrocarbon haze, so that my ethane-based lif...
I am asking if a planet with shades of gray only is scientifically possible in our universe. Basically everything on the surface of this planet would seem black and white to the human eye. Here ar...
Here's the scenario: animals on a world with an atmosphere with a significant amount of a certain gas is able to store "air" into a transparent growth (like a crest) and, with an electrical chord i...
