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It would mean a more complicated modulation of the tides. On earth, we have a superposition of two cycles: An exactly 12 hour cycle of the sun, and a cycle deviating from that by the moon. The moon...
In Science Fiction we often see the protagonists exploring all sorts of strange new worlds with no apparent discomfort to the variations in gravity. What factors determine how strong the gravity w...
The most obvious result would be that there would be no concept of a family. Now the concept of a family influences a lot of things; for one, the concept of inheriting goods might not develop; with...
A group of settlers from a mid-renaissance era have setup an initial settlement along a coastline. Materials for shelter exist and fishing serves as the initial food source. What are the primary ...
Those of you who have read Game Of Thrones will know that in the GOT world seasons do not have a fixed duration, e.g., a winter might last three times longer than the previous one. I find most int...
Actually, an 48 hour cycle is great, because it's exactly twice the normal 24 hour cycle. Thus adaption would be easy; people would just sleep twice for each planetary day. There might, however, be...
I once read a novel about a prison-planet which was chosen to make the prisoners suffer. One of the different "tortures" was a gravity three times higher than that on Earth. Would the human body s...
I'm thinking on the colonizing of another planet by humans. The conditions of this planet are quite different from Earth, and particularly the day-night cycle is much larger. In my fictional plane...
I inherited a worldbuilding project, and the former authors liked some things that seem unrealistic. One of them is that one of the world's biggests rivers splits into two other rivers some 300-400...
Mankind has been always interested in making contact with another (extraterrestrial) civilization. We have launched the Pioneer 10 and 11 probes with plaques explaining where the Earth is located. ...
Consider a group of humans at a bronze-age to early iron-age technological level colonizing a new earthlike planet. There is just one difference - there exists on the planet something which change...
In a hypothetical world where multiple humanoid races develop independently of each other (such as a world that contains Elves, Dwarves, and Humans for instance) what are the conditions for half-br...
By "short period of time", I'm referring to the timeframe of weeks to months (not days or hours). For example: at the start of one day the land is flat, but after a few weeks or months there is a m...
Imagine a world that reaches the end of its resources in silicon, petrol, coal, metals... everything that allows for conventional technology "” even before it has found a way over it (renewable ene...
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...
TLDR You can model the effect of two moons by summing two sine waves. To do this plot each moon as a function of Time and manipulate the gravity of the moon by changing the amplitude and the orbit...
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...
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...
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...
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...
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...
Our tide would be affected and so would be light distribution of Earth. What if the Earth had Two Moons? This article appears to be very similiar to what you are talking about. But this is saying...
We know that planets can have multiple moons, sometimes quite a few (like Jupiter). Assuming that a planet with several moons were habitable in the first place and has significant oceans (greater ...
You could eliminate the magnetosphere entirely which would let the solar wind hit the atmosphere directly. Of course this would be on the day side, not the night side. To get it to hit the night s...
An Argument for Space Shipping Lanes We tend to think of space as very, very large and very, very empty. This isn't necessarily the case, as we see with Space Junk, the Oort Cloud, and other thing...
