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The problem with FTL is that, due to the tachyonic antitelephone, it allows causality violation: I send you a superluminal message (you are moving away from me at relativistic speed), you reply wit...
Within my desert landscape--in which the climate is similar to the Sonora Desert--there are many canyons, one of which sports large, clustered growths of Elbaite Tourmaline crystals, averaging out ...
Follow-up of Could the entire world have been destroyed by the existing nuclear arsenal in 1962? Is it safe to grow food on land that was hit by nuclear bombs? Or will such food kill/fatally s...
I'm thinking of a planet with one side too hot, and one too cold due to always facing its star. With the planet having a small ring, a "twilight zone" which may be habitable, I was wondering if a m...
I've been toying around with the idea of a tidally locked Earth. Spent the better majority of today figuring out weather patterns, habitable zones, etc, but I missed one big detail: How the hell di...
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...
I am currently writing a story where natives are discovered in a jungle smoking a plant that depending on the variety will release different colored smoke when burned. The visuals in this story are...
Assuming Homo Erectus deviated at some point in history, to become Homo Aquarus, would their taste buds have developed different due to the nature of the foodstuff available to them? Of course, th...
Could I make a world where gorillas replace elephants in their niche as herbivore? Are there any reasons that they could not?
An illness has been slowly spreading throughout the inhabitants of my agrarian society, decimating villages. The first sign of infection is the excessive production of slimy yellow saliva, and sinc...
In a world I am building, there is a planet named Sentia. Sentia orbits around a G1 star called Prometheus and has two moons, Valkyrie and Cerberus, whose masses add up to around the mass of our mo...
While playing old games, I encountered a friend I knew from SciFi series and games alike, the Merculite missile. While thinking about what Merculite might actually be (and linking it to a mineral f...
(I'm talking binary:Male and female) This is post apocalyptic scenario. I'm writing a short story and storyline"‹ is as follows: In a distant future: After the world war there are only a few thous...
The first portal is placed at bottom-most point of the Mariana trench (the deepest part of any ocean, located in the western Pacific Ocean) and the second is placed in the Sahara desert in Africa a...
Building on this question about the magnetosphere for a planet with a substantial mercury core, what is the proto-planetary environment required to form a planet with a mercury core? Specifically,...
Prelude Prelude TLDR; A fleet of ships is passing through our galaxy, stopping off at particular stars and causing small dips in the light from stars. This is related to a couple of other questio...
I have previously asked this question about the plausibility of large six-legged creatures, but I decided to split it into several more specific questions because of the advice here. I want to fi...
So, I'm creating a jungle world that orbits a K class star (aka orange dwarf star), and is the second planet in the system. Now, I have the planet having two moons: one that is similar to our moon...
Years ago, I was tinkering around with the idea of an engineered life form which could survive the vacuum of space and be made into a starship. I have since given up on the idea, but curiosity is s...
This is the second part of a question here that I've broken up because they are two very distinct problems. Assuming a perfectly stable ringworld: Assume a more traditional flat ringworld that is ...
I thought of two questions regarding ringworld structures in solar systems with results I can't assume, so I will try to describe each (assume stability): If a (toroidal) ringworld were massive e...
In a story I'm writing, the setting is a tidally locked planet with a moon a fifth its size in a binary system of a mature red dwarf and much smaller second sun. I haven't decided the planet's exac...
I'm thinking about using this as a sort of meta explanation for how Orcs (and possibly other things as well) are different than humans (in muscularity), but I'm not entirely sure what the result of...
For story reasons I need a situation with a planet around red dwarf, which already has had the equivalent of a Great Oxygenation Event. Simultaneously I also like the planet to be mostly without ac...
I have built a star that is loosely based on a real-world star. It has the following properties: Spectral class G Mass: 1.03 M$_\odot$ Radius: 1.02 r$_\odot$ Luminosity: 1.05 L$_\odot$ Surface te...
