Questions tagged [aliens]

For questions about a different and uncharacteristic species or object that has come to the world from another world. NOT for questions about extraterrestrials in their native environment.

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4 votes
7 answers
2k views

How can a species be fine with digesting poisons and toxins?

I have an alien species of roughly earthlike anatomy and biochemistry (so they can consume earth food, and humans would be able to digest their foods as well) These species have a trait that allows ...
-1 votes
3 answers
220 views

An alien spaceship is predominantly "white" inside. What color does a human see this as? [closed]

Human-made space-travelling objects seem to follow certain colour palettes. For example the interiors of human space stations seem to have been predominantly white, or a similar neutral shade like ...
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-1 votes
1 answer
120 views

How can I can make the Centamocoras look plausible [closed]

So I am making a film for my YouTube channel that is currently in early development at the moment, it will be about various sentient alien species from the Milky Way galaxy that join together to form ...
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3 votes
1 answer
184 views

Would a genetically engineered animal with wheels be a viable species? [duplicate]

There have been several discussions both on this website and others about the viability of wheeled animals and why there are no current biological examples of it. A big issue with an animal evolving ...
7 votes
1 answer
85 views

Would communicating through an external, circular "larynx" be viable?

These aliens live on a planet with a thick atmosphere and light gravity, and spend most of their life in the air. They communicate through a series of piercing whistles and sound-wave vibrations, and ...
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-1 votes
2 answers
126 views

What characteristics would my Enslaver Aliens find attractive in each other? [closed]

Each photo I have here is that of an Enslaver Alien. Thank you midjourney for helping me create these creatures. They are an alien species that can grow to the size of a fifteen story building and are ...
6 votes
4 answers
1k views

What kind of alien homeworld would result in the following kind of alien (i.e. my Enslavers) naturally evolving? [closed]

Pictures are provided below. But overall there are three sentient alien species, at the top of the universe food chain in my setting. One of them are the Enslaver Aliens (different individuals shown ...
7 votes
3 answers
219 views

Does a digitigrade biped need a tail? [closed]

One of my writing buddies keeps insisting that my biped/digitigrade alien species would need a tail to act as a counterweight and shift their centers of gravity. Would a tail be required? EDIT:// the ...
1 vote
1 answer
123 views

What would a War time Economy look like in a modern, first world setting?

In this instance I'm kind of curious as to what a war economy would look like in a Modern first world nation like say Canada? Overall what kind of shifts and changes would one expect from an economy ...
1 vote
1 answer
76 views

How would you show battles that take place in temperatures of between -120 to -150 Degrees Celsius? [closed]

So basically what I'm talking about here are my Enslaver Aliens. This brings this back to my previous post. Such Aliens, when they appear, have an area wide effect. Whilst their main ability is to ...
8 votes
7 answers
3k views

What kind of daily combat or exercises should see regular soldiers burn 6,000 to 7,000 calories a day?

Basically I'm trying to create a combat situation and training where recruits and people on the front line are expected to burn 6,000 to 7,000 calories a day. Now despite how messed up the war is ...
2 votes
3 answers
213 views

Symbiosis centaur male?

My previous question Sexual parasite centaur? was about a symbiotic relationship where the males and females of the species are conjoined in such a way that they form a centaur shape. They start in an ...
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5 votes
1 answer
239 views

Sexual parasite centaur?

I have this idea for an alien centaur species which goes through an aquatic juvenile stage looking vaguely like this: Then the males attach themselves to the females and they're able to leave the ...
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8 votes
6 answers
2k views

Would a non-round eye, one that doesn't look like a circle from the outside, be possible and functional?

Could an eye that is triangular-looking from the outside have any sort of advantage over a round eye? I'm interested in any nonconventional eye form discourse so anything on the subject is appreciated....
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3 votes
1 answer
95 views

Organic reactions in alien peat [closed]

So imagine there's a peat composed of a mixture of partially decomposed polypropylene and polyethylene. Another girl and I worked out the reactions for polyethylene and its decomposition byproducts, ...
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1 vote
1 answer
91 views

Abiogenesis of solid-state organisms that reproduce through rock melting and magnetism [closed]

When looking for alternatives to the classic carbon-based life I often found replies on why carbon is still the most likely element to base life on because it can create complex molecules, it can ...
-1 votes
2 answers
108 views

Aliens determining position of alien civilization [closed]

I am working on a story where an alien tells humans that a gamma ray burst will be fired at the alien civilization in one year, as the alien is trillions of light years away, that means that the burst ...
7 votes
4 answers
274 views

Manipulation limbs that aren’t arms

I have been creating aliens species for a while now, and the idea of a sapient, tool-wielding, spacefaring civilization that doesn’t have arms as we know them excites me. I would like my aliens to ...
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10 votes
2 answers
763 views

Synthetic animal with super skin: Looking for Biotic material that's Elastic, hard to cut and puncture with force

Hey first post here!! I have a species of Synth-animal that is designed to upset ecosystems, consume all crops and livestock, and depopulate cities. The animal is around the size of an American black-...
3 votes
2 answers
168 views

How about this Unnatural eyeball shape?

I'm designing an intelligent alien creature that lives in the jungles of a tidally locked planet, a little bit more massive than Earth, and which orbits a red dwarf. One of the things I designed about ...
12 votes
10 answers
5k views

How do we survive in post-apocalyptical permanent nighttime (with no electricity, communication, running water, and aliens of course)? [closed]

A race of aliens have invaded Earth and they love the dark. These aliens have caused intense smoke shading to occur so that it is permanently pitch black. It has been several weeks since it went dark, ...
4 votes
3 answers
1k views

Anatomically Correct Rull? [closed]

An alien species (of name and provenance that shall remain unmentioned) have an exotic metabolism. They are apparently equally comfortable in atmospheres of oxygen, chlorine, or fluorine, and are ...
1 vote
0 answers
111 views

How Would Human Society's Outlook Change if an Alien Type III Civilization Had Been Discovered? [closed]

The Kardashev scale divides civilizations into four types (0-3) based on energy consumption. No type II civilization has been discovered in our galaxy and no type III civilization has been detected in ...
-7 votes
5 answers
407 views

Could space aliens be racist?

Racism, while it is widespread now, is a relatively recent invention, of which Earth's history suggests it requires certain conditions to emerge and take root. These conditions are certainly not going ...
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5 votes
7 answers
286 views

Anatomically Correct Insect From Shaggai

For those unfamiliar with the Lovecraftian-inspired story, the Insects from Shaggai, aka Shans, are insectoid, sentient creatures with 12 limbs that can 'phase' into another organism's brain and begin ...
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5 votes
3 answers
180 views

Blue star adaptation

If life did evolve on a planet around a blue star, what sort of adaptation could be expected? I so far have the autotrophs being yellow/orange or blue to absorb the light. I also thought the animal ...
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1 vote
2 answers
86 views

Blue star vision

For sake of argument, let's assume life did evolve on an earth like planet around a blue star. I have this idea that the animal equivalent life wouldn't have color vision so to let in less of the ...
  • 2,780
5 votes
3 answers
177 views

What evidence could reveal to aliens that their sun is the result of a binary star merger?

The answer to a previous question suggested life could have the time to begin and evolve on a planet orbiting a blue star if it was at first a binary pair that merged. The technical term is a blue ...
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2 votes
2 answers
142 views

Would a carbon-based lifeform be able to emerge and live in Venus-like conditions?

I'm trying to make carbon-based alien lifeforms which live in a Venus-like world, where: The temperature is $\pu{650-750 K}$ and the pressure is $\pu{0.9-1.1 MPa}$ Sulfuric acid is abundant Because ...
3 votes
4 answers
150 views

Why would a bio-mechanical Dyson sphere need to abduct and subsume an entire sentient species every 30-to-50 years?

THE SPHERE Up in space, there is this massive Dyson sphere, with a radius only slightly smaller than the earth's moon. It's made up of a creepy fusion of organic matter and mechanical machinery and is ...
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9 votes
8 answers
3k views

Life underneath a blue star

Blue stars are notorious for burning too bright and living too briefly for life to develop around them. But is there some way that life could survive long enough to reach the sentience stage? I'm ...
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8 votes
5 answers
230 views

How would cephalopod-like aliens design firearms

(BTW this is my first question, sorry if this is bad.) So basically, in my world there is a race of octopus-like aliens who use handheld firearms, now the question is how would they design them. Now ...
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14 votes
6 answers
808 views

Integrating Earth into interstellar empire [closed]

First Contact In 2020s an alien starship visited Earth. First contact was peaceful - with intial contact made from orbit, humans started learning the alien language and the aliens - let's call them ...
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4 votes
2 answers
222 views

What year would technology be advanced enough to spot advanced aliens a dozen light years away from us

I'm planning to write a story and I was wondering if it would be possible to find aliens of interplanetary levels of technology at most a dozen light years away. I know that the first exoplanet was ...
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4 votes
6 answers
256 views

Psychological Consequences of a Symbiotic Relationship with a Sentient Symbiont that was supposed to be Consensual, but was not?

PREMISE: A sentient race of neural parasites is in a civil war between the Symbiotes, who've used their extensive knowledge of genetic engineering to alter themselves into symbiotes, and the Parasites ...
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7 votes
2 answers
106 views

Realistic Intake Food Required To Maintain Healing Factor

So, to start out with. I've got a character with an alien biology and has an accelerated healing factor. Nowhere near the likes of Wolverine, or Deadpool but better than a regular Humans and allows ...
4 votes
4 answers
499 views

Reality Check: Are these aliens feasible?

I'm working on a Space Opera novel featuring a group of aliens that call themselves Species 0001. Here's what you need to know about them: They are a species of squid-like aliens that evolved on a ...
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14 votes
2 answers
1k views

Feasibility of an "albino" in a species that has color-changing capabilities?

I have an alien I am designing and I want there to be an individual to be a play off of my main character (who is albino.) The aliens are, unknown to the human settlers, an enigmatically intelligent ...
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3 votes
2 answers
184 views

Metabolic cost of changing the chirality of amino acids and sugars

The aliens in my story have biochemistry that uses amino acids and sugars with chirality opposite to that of terrestrial life. The aliens also have nanites that are capable of changing the chirality ...
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-2 votes
1 answer
85 views

What is the process of building a world [closed]

Is there a pattern that can be identified that we could use to build worlds? Is there something currently being used in certain circles?
3 votes
3 answers
183 views

Plausibility check : an habitable exomoon

Is this moon plausible this moon is a little bit smaller than our moon it has thick atmosphere. so much so that floating algae thrive in the wind. the moon is not too close to its planet nor it's ...
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2 votes
2 answers
176 views

How colorful would plants and animals in a habitable planet orbiting a F main sequence star would be?

F main sequence stars are hotter and brighter than the Sun and therefore they emit more UV radiation than sun-like stars. Many scientists think that complex life could develop in planets orbiting such ...
3 votes
2 answers
261 views

How destructive would a antimatter bomb be?

I already know that antimatter is a destructive thing. But how destructive is it? I want in my far future human reality there be a mass produced bomb using antimatter that makes sure aliens know to ...
5 votes
3 answers
186 views

Are there animals that can choose a caste/role/ability?

Just had cool dream, mostly a nightmare that woke me up multiple times on a loop during the night, but it was so cool I forced myself to back to the same nightmare after falling a sleep again. The ...
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10 votes
16 answers
6k views

Why would most species avoid democracy?

In my world, there are humans (often called Earthlings) and eight alien species. Humans have an Earth government best described as a democratic quinquevirate: to be exact, this is an elective semi-...
-5 votes
2 answers
131 views

How could people handle arachnophobia in a world where spiders have the size of pets? [closed]

I am thinking about an alien planet where most species of spiders are the size of cats and dogs and the biggest of the most rare species are the size of a car. In this world there is the same ...
7 votes
1 answer
181 views

Can a creature have an endoskeleton made of cellulose?

I've been doing research for my speculative evolution project, and I am currently mapping body plans for the main lineages of organisms I'm going to feature in this project. One of them has an ...
23 votes
15 answers
4k views

Are there any non-organic resources that are rare in the grand-scheme of the Universe, but common on Earth?

I have been world-building a setting where a species of advanced aliens invades Earth, only to be forced off after the humans resort to guerilla tactics. In this setting, biological life is abundant ...
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4 votes
3 answers
190 views

Could you detect extrasolar intelligence using a non radio-telescope or other instrument?

The James Webb Space Telescope, after decades of development, has finally launched. It stands to reveal great knowledge about the dawn of the universe, and great insights into extrasolar planets. With ...
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2 votes
7 answers
303 views

How dangerous are the equivalent of flying piranhas to the ecosystem?

A zoo containing species from two different planets houses some very voracious specimens. I am calling them Galorian Nibblers. The best way to describe them would be as a mix of starlings and piranhas....
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