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What type of extraterrestrial body could successfully pierce through one side of an Earth-like planet, go through all strata, through the core, and then continuing through the strata and through th...
I am interested in the concept of a chitin endoskeleton (rather than exoskeleton). In the role of a humanoid internal structural skeletal system, how would chitin compare to bone? Would it be as s...
I've been working on this creature some more and have hit another snag. If my critters communicate through the use of pheromones and chemical trails, how do they communicate the message that it i...
What animals and in what conditions would evolve into something resembling a bearfolk like this one A ''bear'' humanoid of 600"“800 pounds standing in two legs, divided in many sub-species with ...
The planet is a Super-Earth with 1.839 Earth masses and an average surface temperature of 180.7 degrees farrenheight, the atmospheric pressure is 50 times more dense than Earth's and there's large ...
I've seen the terms posthuman and transhuman used in fairly generic ways. But given a setting with several types of beings, what consistent naming convention could be used? I suppose the vulgar ter...
Bioluminescence and/or extremely large eyes to take in the almost nonexistent light beneath Europa's ice sheet, or eyeless sockets and a transparent body with senses better equipped to detect minut...
What are the effects of introducing 2600 sharks of the primitive Edestus Gigantus specie* in modern waters in different places on earth? Will they survive, how ? for how long? can they destroy the...
250 years in the future, humanity has colonized Mars and the Moon, and built thousands of orbiting outposts and hundreds of O'Neill cylinders in the zone between Venus and Jupiter. The key enabler ...
I was thinking of a set of life forms that originates from neutron superfluid inside a neutron star. So these life forms are not made of atoms but are made entirely of neutrons. How might this li...
I'm am developing a creature, what I want to create is a giant octopus that is able to utilize poison. I would like it to shoot it from its beak if the poison is in liquid form, or emit the poison...
I am creating a map for a story set in a pre-industrial world, and have made the basic physical geography. My main concern now is the development of culture, centred around urbanisation. There ar...
Chappie, Johnny 5 and (the more famous) Overwatch all feature robots that are truly and completely artificially intelligent. Each of these series has people react to them in a different way; In Cha...
Two vastly dissimilar organisms turn out to be the same species upon gene sequencing. In this hypothetical animal species one or more components of the life cycle is a fungus, algae, plant, lichen ...
I designed my Kepler Bb planet to have 4 major moons. They each have a differing trajectory and are in resonant orbits for stabilization. I also designed the planet to have earth gravity but be big...
I was reading about the Riemannian Universe http://gregegan.customer.netspace.net.au/ORTHOGONAL/00/PM.html I noticed that Greg Egan doesn't seem to talk about how Gravity would work in the Riemann...
In the real world we live in, people mostly domesticated herbivores like cattle. Some of the reasons for this are: They are efficient in terms of cost and profit. A cow simply takes in grass whic...
Consider a world in which time travel has been made viable possibility. Initially, many are ecstatic at the new technology and the knowledge it will unlock. However, biologists and other scientists...
Assuming we're talking about a world similar to ours with the difference of the existence of mermaids, that are fishes with an upper half visibly similar to a human's, live in the sea, can survive ...
In my world, similar to our earth, a person has the ability to create gravitational "spheres". He can: modify its location vary the force move the sphere (once created) select what or ...
By a stable orbit I mean not getting ejected by the other planets or ejecting them, Let's create a scenario where Neptune occupies an orbit in the asteroid belt at 2.76 AU, Ceres average distance f...
You see this little planet? Is a planet roughly the size of earth, just slightly smaller circumference by 50 kilometers and a smaller gravity of 0.8g with little variations around the world, just l...
After reading a couple dozen entries about rogue planets and their implications (for those unaware, a rogue planet is a planetary mass that has been separated from the star by gravitational instabi...
An uploaded personality, after spending 100 years as a biological human and 40 years as a post-human brain made of silicon (and later carbon) semiconductors plugged into a rack, decides to emigrate...
In popular mythology, wearing a garlic wreath is a good defense against vampires. Silver kills werewolves. But why? How could garlic, a spice whose only offense is plain stink, deter an attracti...
