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To expand the territory of the EU, one can consider recreating Doggerland by reclaiming the lost land from the sea: Had our ancestors had more technology, they could have dealt with the sea leve...
Our main character Felixa (female, weight about 70kg) is onboard the ISS (altitude 408 km / 254 miles), when something similar to Gravity happens, and the space station is destroyed. Her assets: ...
How do I create a societal collapse with ruins, survivors, and the weaponry is back to pre-gunpowder technology (swords, shields, bows, etc.), while the Pre-Collapse tech can make Ridiculously Huma...
Today's dinosaurs--the birds--have a uniquely avian piece of anatomy called the syrinx, located at the base of the trachea. Because it is located at a point where the trachea branches to the lungs...
Ok, so the Earth is filling up, finite resources, and as we all know, there are no plans for us to reduce our resource hungry ways,...and Mars has no magnetosphere apparently which means we couldn'...
I want to put 10,000 humans in a space ship and send them into space. They don't have a set destination - they're having to flee their homeworld, and they don't know what planet will take them in, ...
My Earth is similar to our real Earth, and some scientists have found out a really cheap way to use geothermal energy. Huge generators are built, but one scientist eventually found out that the Ear...
Context A God contest is organized. Each participants starts with a human-free alternate Earth and a certain amount of god-credits to buy humans and supplies. Some Gods used a big part of their bu...
Meet the following specimen of Armatae Bestia. I'd describe it, but a picture is worth a thousand words, so I'll just put one here instead (Feel free to drag it into browser window to get a much bi...
So assume your setting has the Alcubierre drive - it requires mastery over negative energy to some extent (at least, some form of exotic matter you can excite to generate that energy). Is negative...
I have an alien species that while similar to humans in many ways have mouths that are closer to muzzles. In short, they do not have cheeks like humans do. I realize that this will effect the sound...
OK, here's the problem: I want to have a spaceship that is built for transporting large machines (in particular, heavy mining equipment). It does not and is not designed to leave space; transport d...
In 1869 a giant space gun was built, with the intent of firing a projectile at the Moon, just to prove that they can do it. Of course, the ludicrous idea to put people inside it was never even take...
Every child is afraid of the darkness. For them its not simply the absence of light, its the absence of information. Even if you know that there should be a wall or a doorway right in front of y...
Sometimes when building a world, and in particular since Tolkien, one may wish to create original languages for the inhabitants. There are some information around the site about the creation of con...
Pretty much what it says on the tin: It's the beginning of 2016. Due to a fast-spreading virus, humans have lost the ability to reproduce themselves. The virus makes current artifical fertiliza...
Let's take a classic AI revolution scenario: An organic civilization seeking more comfort in their lives created robots with self-learning algorithms to make them more efficient. But while the AIs...
On a world where Vanadium was the most abundant metal in the crust, with levels similar to Aluminium or Iron on Earth, would you expect to see unusual minerals and rock formations? Massive overab...
It's well known that Mars has a very weak atmosphere as a result of billions of years of solar wind bombardment. Mars lacks a sufficiently large magnetic core to generate a magnetosphere strong en...
I'm working on a far-future SF story taking place on a terraformed Mars and would like a fact check. Current estimates (see here and here) are that the CO2 on Mars could be released in gas form to...
I'm not sure if you guys are familiar with Michio Kaku, but he's a renowned physicist who has often talked about humanity's role in the future. He mentions some valuable words about how we are stil...
I have two interstellar civilizations, both of which are extremely advanced and within a few thousand light years of earth. They go to war and make some stars explode in the process. The Combatan...
An alien race, for reasons of their own, have decided that it's important to make the third and fourth planets in our solar system about the same size and mass. Since they have a strict moratorium...
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...
What makes an animal suitable for domestication? I know it has something to do with the danger to productivity ratio. But this is not helpful for fantasy animals in the worlds we build. What factor...
