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I'm embarking on a fantasy book so I guess in essence you can write about anything but I do want an element of plausibility. Could you have hot desert caps on a planet and an icy/winter equator?
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...
(Perhaps termite people would be more appropriate) In my world, the Gbajumo (think race of semi-gods) decide that the humanoid beings of the world have become too cocky and comfortable in their su...
I am considering specifically multiple intelligent species that all evolved on the same planet, and whether it is plausible that they will end up in a multi-species society or whether one species w...
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,...
This planet is fictional, but I want it to be credible all the same. It is the same size and composition of Earth, orbiting a sun-like star. But that's where the similarities end. The planet's or...
The drug should have the same effect as heroin, but without being addictive at all. Is this chemically possible?
Does anyone know what the relationship is between the range of likely eye colors in animals and the color of the sun on a given alien planet? For example, on Earth we primarily see browns, greens, ...
In Plague-inc the most typical strategy is trying to infect everyone, while staying hidden by not harming infected people (when a virus, bacteria, fungus is found, people start working on the cure)...
So let's say you have a starship like in Star Trek and you want a Replicator, but don't have the ability to convert matter to an energy form to pass their electrical cables. Basically you have an a...
Is it possible for a sun-like star to hold on to about 16 planets? If so, where could the habitable zone be located at?
I've been wondering, would it be possible to achieve levitation of an object in the center of mass of a planet? I ask this because the gravity is the attraction between bodies and theoretically th...
Aliens build their city on Earth in such a way that it covers the entire planet but leaves the surface of the planet (including human cities) intact. This is possible since they built their alien ...
What could cause a planet to naturally have zero caverns with surface openings apart from small impact hollows in the sides of craters and crevices carved in cliffs? To be specific, zero large ca...
So, after some advice in narrowing down the topic (used to be what kind of characteristics do animals need in different environments or something like that) I have decided to start a series! Starti...
I see a lot of media describing large space colonies, and am curious as to how they got there. I'll admit, I'm mostly inspired by Interstellar here. So here's the scenario: A group of 600 settlers...
Question simplified and clarified as requested... thanks for the feedback! If humankind evolved on a planet with a consistent, gentle environment, would it negate the need for them to develop varia...
A Dyson sphere is a spherical megastructure built around a star with the goal of capturing all of the energy output of the encased star and making that energy available to the controllers of the me...
For the world I am creating I am trying to have an event like a super volcano explosion in its past. Generations of oral storytelling have resulted in the Norse mythology of Ragnarok making its way...
Suppose there is a rogue planet. I was imaging what could be its energy source for life, and I remembered that photos of the center of a Galaxy look very bright. So my question is, can a galactic c...
I am designing an semi-aquatic sapient species known as the Tetrapi. They have an appearance similar to that octopi, only with 4 tentacles comprised of 3 opposable digits. Unlike octopi, they are a...
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 ...
I was imagining a scenario where an 21st century engineer accidentally finds himself transported through time to early Renaissance Europe. Realizing that no help or rescue is on the way, he decides...
OK, let's suppose I have a structurally sound ship"”it could take a shaking"”and that space debris isn't a problem. I have access to a high level fusion reactor, which can, for all intents and purp...
Some research papers, such as Arnold 2005, has investigated the possibility of using artificial megastructures transit signatures as long-range, long-lived and low-maintenance signals of unambiguou...
