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Let's say that humans were biologically immortal. Once they reach adulthood, they effectively stop aging. Due to disease though, the average lifespan is 100 years. (In practice, your access to heal...
I'm writing a speculative fiction story that includes superhumans, and I'm trying to get some of the specifics nailed down. Several of my superhumans have the typical powers of flight, usually able...
As a linguist aboard a terraforming mission, you arrive at a new planet. The planet, orbiting a G2V star, has copious amounts of wildlife and some sentient lifeforms. However, you, interpreting an ...
In its heyday Earth was a great interplanetary trading post on account of its low gravity moon which was used as a warehouse for all kinds of goods. The Moon was covered almost entirely in large w...
500,000 people have been kidnapped from all over the world by aliens. The aliens want to see if humans have empathy, and they can't understand our languages, as we speak they hear just random nois...
I'm asking this question as a reference for use in worldbuilding when developing world size, atmospheric content, or alien optometric abilities (aka, vision). While I'm specifically asking two q...
Looking to how I can make Nagas and Mermaids able to exist and evolve in my story, I came across this post which explains how Nagas could evolve from humans: Anatomically Correct Naga In the top a...
A large (compared to Earth life) species of creatures live in space. They gain energy from interstellar dust and starlight. How they do this is a separate question so not relevant here. However the...
What I want to know is if an asteroid about 15 KM in diameter and roughly double that in length, spinning at a significant speed, could go undiscovered until a crew of an asteroid mining ship happe...
Is it was technically possible for a superhero that senses radio waves (like low frequency EM) to "hear" the radio? This superhero senses radio waves a bit like we can see visible light, though n...
The chance of conceiving quickly does depend on a woman's age. Women are most fertile between the ages of 20 and 24. The average person is born with around 300,000 eggs and steadily loses the...
I'm currently working on a story involving a refugee group of people escaping their society, which has made uploading a copy of their consciousness in to a virtual reality system obligatory. Howeve...
So, we've gone off to another star system and decided to build a Dyson bubble--a continuous statite, supported by radiation pressure, surrounding a star--with a surface gravity of 1g to live on. N...
Let's assume that this hypothetical alien crawled out of the identical primordial ooze to the point where they share significant genetic similarity with humans, and due to either evolution or outsi...
The key idea in the concept of metallic hair color is the word "metal." Metal is shiny. Metal is iridescent. Metals come in a range of finishes from warm gold to icy silver. Metallic hair colors,...
An artificially created organism called a symbiote has escaped from a research facility and has infected a human host. It has given this human new abilities, including super strength, speed, durabi...
All life on Earth is surprisingly homogeneous from a biochemical point of view. Every organism known to us is primarily built with carbon-based molecules that also contain hydrogen and oxygen, main...
Supposing a world like the Underdark, full of civilizations that developed and live their lives completely away from the light of the sun. In the typical D&D type setting, these creatures have...
If an expert of some kind travels back in time to the 14th or 15th century with modern tools and machines that don't require power to work and if he were to past on the knowledge of modern technolo...
In post-apocalypse fiction, diabetics, if they are ever even mentioned, are typically portrayed as utterly, irrevocably screwed. In fact there was a pretty cynical example in Dies The Fire (a book ...
Ejaculation is the discharge of semen from the male reproductory tract, usually accompanied by orgasm. It is the final stage and natural objective of male sexual stimulation, and an essential compo...
Take-off in a craft with rockets allows a gentle acceleration that doesn't kill the occupants. Given that the Moon has no atmosphere: Is there any current technology that would allow safe takeoff ...
Ever since I found out about the green blooded skink, I have wondered if it's possible for other blood colours to evolve among vertebrates, specifically blue in mammals.
Humanity builds a spaceship to leave Earth. For eight billion people or so, that vessel has to be gigantic. Using the metal from Earth's core for the construction and the biosphere to create a habi...
One of my fictional planets (which is largely terran in nature) is notable for an unique animal. Said animal is a dangerous predator that is notable for several things: It is physically separated...
