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My source of inspiration and imagination... StarGate Atlantis Tv-Series: Wraith hive-ships were mainly biological. Genesis Rising Pc-game: The game itself, storyline, human technology, etc based ar...
Where should I shoot a solar flare that is at least as strong as the solar flare(s) in 2012 for the most death? What else would happen? And how much death, in percentage of world population, would ...
So an amazing thing happens and we locate an Earth-like planet and we also achieve the technology that enables us to travel there. Upon arrival we discover that dinosaurs are roaming on the entire ...
In a world where three or four, at least, other sentient, intelligent civilisations (of non-human species) with a few planets each exist, earthly humans are getting more advanced. We've finally got...
Like the title states, how would it be possible for the same species to live on multiple planets (before space travel is invented)? Basically, a civilization invents space travel, meets aliens, and...
What physical attributes of atmosphere and flora could cause clouds to form on a regular basis below the canopy of a forest between one-fourth and one-half the height of the forest, without impacti...
Suppose we have a planetary system in orbit around a Class O hypergiant star of 225 solar masses (larger than all but R136a1, the largest star we currently know of), 32,000 times as bright as our s...
Suppose we have a planet whose atmosphere has roughly the same gaseous proportions as Earth, but helium replaces nitrogen, and has a strong hydrogen presence in the upper atmosphere; has a gravitat...
What could drive a human civilization to use base-12 system? As far as I know there have been such civilizations and they probably used their phalanges to count (instead of their fingers). I have f...
Time travel on movies and tv always say they were able to tell the year by looking at the stars. But how? For example Voyager goes back in 1996 and Ensign Kim says astrometrics puts them in the ye...
With the technologies that we have got, is it possible to completely migrate 1/3rd of the world's population to another planet which has characteristics similar to those of earth ? Possibly it will...
Imagine a child of mixed race, one parent is human and one is an alien who has some ability humans do not have, for the sake of argument telepathy. I'm assuming there is some advanced medical assis...
The sun inexplicably ceases to give light. It's still there and continues to have a gravitational pull keeping us in orbit. The solar system continues to operate as normal, but the sun has gone dar...
Assume we have an Earth-like environment. If a tribe with only early medieval technology were to settle in a mountain environment: What resources would be needed to deal with the elevation, co...
In settings with space travel we often see stories that rely on ships encountering each other, such as space piracy (which means you need to know where to wait in ambush), or distress signals that ...
Would a world be able to sustain a constant low pressure area such that there would be a constant wind from one side to the other? Imagine that on one side of the world is a desert with some rock...
Would humanoid sized insectoid lifeforms be relatively slow considering that their exoskeleton would have to be rather heavy since it takes more 'armor' to get the same relative protection? Genera...
We are used to a world where humans are basically an apex predator; we don't really need to worry much about becoming some other animal's next meal. If that wasn't the case, and humans had to be w...
The size of a planet affects its gravity, its climate, and its likelihood of developing life. Earth is large enough for an advanced civilization to develop. A smaller body such as Europa, while a...
In a world without enough land for a massive (and growing) population, but plenty of water surface, experimental cities have started to spring up along the edges of various continents. The first is...
Planet of hats is the name of a trope where all inhabitants of a planet share a defining characteristic, of which there are many sub-tropes like environment or economy. I'd like to focus on the cul...
A generation spaceship (a spaceship designed for multiple generations of humans to live in) could sail through the galaxy for hundreds of years before finding another planet, let alone a planet wit...
If you've read Chronicles of Ancient Darkness, you might get the reference. In that story, the protagonists, after fulfilling their duty, decide to journey over a large mountain chain to explore t...
Suppose a planetary system works in such a way that there is a rotating planet in the direct centre of a binary star (the star system's centre of gravity, also known as barycenter), such that the t...
You see this in quite a bunch of movies / books (think avatar). What could be a reasoned physical explanation of such phenomenon? Would this explanation impact other things on a planet? Like most...
