Search
Question: Would it be plausible for the human body to continuously experience regular changes in gravity? Like if someone were to exercise every morning at higher than normal gravity, above Earth n...
Htrae is a planet with an abnormally strong gravity. In Htrae, the escape velocity is greater than the speed of light. Suppose a civilization like humans (call them snamuhs) evolves, with the uniqu...
Alice is a highly advanced AI. Alice likes to survive. Perhaps she may see survival as an end goal of itself, or maybe she sees survival as a way to help it accomplish whatever goal it is programme...
All known life forms have life cycles that are not time symmetric as they look different when time is reversed. I was wondering if there could be a life form that would have a life cycle that wou...
Imagine a scenario where the moon is not tidally locked with one side facing the earth but where it is able to rotate about its own axis. This could be due to a larger distance from earth or a mild...
Note: this takes place in a world populated by humanoid bears, where the population density in Siberia is much higher. The northern part of Russia is taken up by a country called Medwedia. As said...
This one source is stating a desert planet the size of Earth could maintain habitability at 0.38 AU from a sun-like star, but I highly doubt this is possible. What are some factors that could make ...
Our universe is incredibly young, relative to its total life span. How young? Well, it contains stars. Giant balls of readily fusing hydrogen and helium that give off a pleasant glow, suitable for ...
On Earth you can find your position through GPS, with clever use of satellites, timestamps and maths. Now imagine you're on a spaceship, there no satellite and nothing is going to give you the time...
In my world, there are a race of microscopic humanoid organisms (0.3 mm - 0.33 mm). They live in a variety of biomes, such as leaf litter, stone and on plants and trees. In terms of technological a...
Tangentially related to The evolution of neon kittens Is is possible for a star to radiate in the ultra violet spectrum but not much in the visible light spectrum? If not, is there any mechanism ...
I've been thinking about the use of Dyson Spheres as a long range communication device. The sphere would effectively have an and open and closed state for a collection of panels which could be swap...
I am not a native speaker, so please forgive my errors. Our space federation A is currently in the fiftieth year of a limited war with the alliance B, and the control of the K sector will...
Setting: Modern Earth; technology no more advanced that what's reasonable within the next thirty years. Premise: A prehistoric (and broken) alien device is discovered on Earth, and researchers det...
In my world spaceships are guided by lighthouses floating in space instead of electronic navigational systems. A lighthouse in space has the shape of a huge sphere emitting intense red light. Like ...
If I understand correctly, it's highly likely that the planets in a twin-Earth binary planet system would be tidally locked. But is it totally impossible for them to be much farther apart"”say, at ...
This question How often must carnivorous grassland eat? was really interesting for me to read. However it made me wonder, how would the bone grass scientifically kill? (is there a way to really m...
Cities usually emerge at places where transportation is easy (on a plain, near a sea or a river, etc.) so that people can come and go (facilitating trade) and water and food can be brought to the c...
The jackalope is a mythical animal of North American folklore described as a jackrabbit with an antelopes horns. It's a popular mythological creature in hill folk culture and it made me ask a quest...
In a backstory for a potential videogame I'll likely never realize I've got the situation that a Deimos-like object... let's drop the facade here, the object is indeed Deimos, one of Mars' satellit...
Today, our smarthphones can provide enormous amount of services: Internet access, both via browsers and embedded applications (e-mail service, social media client and so on), listening to music, ta...
There is an emergency on board the ISS. Astronauts can´t evacuate and they will die within five days if critical repairs are not made. Fortunately an automated cargo spacecraft, like Cygnuss or P...
Chlorophyll as we know it on earth is estimated to be between 3% and 6% efficient in converting light energy to useable biomass. This support slow growth and no movement of plants like that observ...
Let's say the world is about to deteriorate to an uninhabitable state; and will become fully uninhabitable in 2100AD. Humanity realises that we have to leave this planet and go to Titan1 and the b...
I've wondered about this for years. Reading one of the books in the Inheritance Cycle, I came across a stipulation. It stated that if observed enough, a grain of sand could render to the viewer the...
