111 questions with no upvoted or accepted answers
115 views

What should an inactive planet's topology be for nutrient circulation?

I'm trying to engineer an Earth mass planet built initially out of pure silicon dioxide (silica). So basically, imagine a glass sphere slightly larger than Earth somewhere in the Goldilocks zone, ...
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What are good structural and energy-storage molecules that don't release gas when synthesized?

Nicar is a carbon world (formed from a protoplanetary disk with more carbon than oxygen, so water is geologically unstable and the chemical environment is strongly reducing) with ammonia oceans and ...
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Would the seasons on this solar system be too extreme for Earth life to thrive?

In this artificial galaxy, there is a trinary of quasar stars at the center, each one 1.5 trillion times as massive and 995 trillion times as bright as our sun, each one having its own ring of mirrors,...
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Largest possible biomass on any given exoplanet

Suppose you are the hypothetical architect of a new exoplanet, who's been handed the job to maximize this exoplanet's biomass. Given the current knowledge of life as it is, and thus leaving any sort ...
63 views

Convection Cells in the Atmosphere of a Jupiter-Sized Planet

Background The setting for a story I am creating is an earth-like planet near jovian surface area, existing in a universe where the force of gravity is appreciably weaker than in our own, such that a ...
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Disabilities and dealing with them of other natural forms of communication

To humans the normal means of communication is verbal speech, with sign language, written words, braille, etc being used to help those who can't communicate normally. There are those who're only ...
139 views

If the Earth is completely covered by mirrors, how quickly does it freeze?

Suppose all areas of the Earth is suddenly covered in indestructible mirrors (assume they reflect 70% of solar energy that would hit the land/ocean), how quickly will the increase in albedo cause the ...
190 views

Would a spider-like digestive tract work in a larger creature?

Would it be plausible for a large animal to transport nutrients through its body through digestive tubules in addition to (or even instead of) the blood? The specific system would be a system of ...
276 views

Assigning realistic climate zones

I'm thinking about the Koeppen climate zones for my Earth-like planet. It is all very roughly painted, because I would like to get it right first before fine-tuning the world. I've so far started with ...
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Could a universe with 3 or more $U(1)$ charges that are all equivalent to each other be self consistent?

In alternate universe there are at least 3 $U(1)$ charges. An elementary fermion can have a value of $±1$, or $0$ for any of these types of charge. The value an elementary fermion has for one of ...
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Large percent of humidity in a atmosphere

I’d it possible to have a mostly jungle and swamp like planet with these characteristics: The planet is a mostly water with high amounts of oxygen much like the Carboniferous period on earth. 2 suns ...
78 views

What would a eusocial species of lepidopterans look like?

I am writing a science-fiction story that takes place some million years in a future Earth. There is a species of lepidopterans that evolved to become eusocial. They are my gnomes. My species is a ...
55 views

Climate after the Ragnarok IMPACT

I am curious (with reasons) about what will happen after an asteroid (called Valhalla 2! Valhalla 1 had collided with the Moon!) collides with Earth. Initially, Valhalla 2 is a major fragment that ...