13 More Aspects About Aliens That You Should Consider

Here’s a new list of Alien Aspects in addition to the 13 Aspects About Aliens You Shouldn’t Ignore from earlier this year. I’ve promised Peter Cawdron I’d write one, so here you have it. Several extraterrestrial creatures were (un)intentionally killed in the creation of this post, and a small inhabited planet was destroyed. The course of time is now forever altered … I hope you’re happy, Peter. I hope you can sleep at night.

So — aliens, my favorite subject! They’re one of the best tools a science-fiction writer has, as they can offer both an interesting contrast and a warped magnifying glass, allowing us to see the homo sapiens from a different perspective. So feast your mind on extraterrestrial speculation. Come at me, humans!


1. Aliens are people too

Beyond saying that you should make aliens interesting, I say you should also make aliens feel real to the reader. Especially in the case of intelligent aliens, giving them full rights as people is a must.

Every single feature that is “not like a person” needs to be explained or at least shown to be intentional. Say… if the Greys landed on Earth and they acted like emotionless robots who neither eat nor sleep, you should explain why; or if humans landed on an alien planet and the local dominant species has technology but no complex society, you’d better come with a great explanation, and so on. Show us that aliens are people too, and we will be ready to feel something for them. This is doable even if they don’t have much in common with humans, either biologically or psychologically, as long as–


2. Aliens mean something to the characters

Having aliens in a story solely to shock or stun the reader, is like having cheap CGI take central stage in a movie. It wows momentarily, but leaves the audience with a bitter aftertaste of pointlessness (think of the corny 3D gunfights in the otherwise excruciatingly meaningless Resident Evil: Afterlife).

I’ve touched on this subject in a comment to a post by author Sheron Wood McCartha, and what I’m basically sayin’ is that what makes aliens work and makes them feel real in a story, is not so much their resemblance to humans but their meaning to them, and what behavior and understanding they stimulate in them.

However much we like to think that we love our loved ones unconditionally, that is never true. We love them for what they represent to us, for what we see in them, for who we believe them to be. If we didn’t “discriminate” this way, we’d love everybody on the planet whose pheromones we could smell, and not just our “special someones”. This is also the reason we humans are able to get attached to animals, places, and objects: we infuse them with meaning, and they become representations of something we care about and consider valuable or indispensable.

And it works the same way with aliens. You can sulk all you want for the perceived death of romance in these statements, but as a writer you need to understand how to make the reader care for things he can’t touch, and this is the way to do it—have these things carry meaning.

Conversely, aliens will have feelings for humans depending on what we represent to them, what meaning we carry in their perception.


3. Aliens are not stand-ins

Alien presence must be justified in a story, there’s no going around it. If you can replace an alien with a human from another culture, you should do it, because it means the poor Martian’s only there as a silly prop.

I define “science-fiction” as fiction in which science cannot be replaced by anything else without fundamentally altering the story’s meaning, and I define “aliens” as extraterrestrial creatures which cannot be replaced by humans or animals without losing something of fundamental importance to the story.


4. The evolution of life is guided by efficiency

Or put more simply, don’t give aliens extra appendages or physical features that serve no purpose, and served no purpose in their evolutionary path either. Even Cthulhu must’ve needed his tentacles for something.

And I’m looking at the Avatar makers here—a movie with some of the WORST worldbuilding mistakes I have ever encountered—who gave all large beasts on a low-gravity world 6 powerful, muscle-packed limbs to… sustain their flimsy weight? Come on! Oh, sorry, except for the Na’Vi of course, who have 4 limbs and and don’t seem to have any genetic material in common with the other mammals on that planet. But maybe the mammals on Pandora are a false lead altogether, and the Na’Vi are just an oversized species of tree lice.


5. If you have human vs. alien violence, don’t try to sugarcoat it. Have some balls.

If we visit an alien planet, we’re either guests or invaders, and we’re certainly gonna be treated as such. How are guests treated? With caution and civility, but only until they get on the host’s nerves. How do we deal with guests who disrespect our efforts and our civility? That’s right. We kick their ignorant asses out! Who are they to step into the privacy of our homes and tell us what to do?

And if we’re invading an alien planet to take whatever the hell we fancy at that time, you bet they will do all they can to stop us. And there will be nothing to justify our violence against their natural right to defend themselves. Even if we’re on the brink of extinction and they have the only thing that could save us, trying to somehow morally justify our violation of their home reeks of cheap, cheap self-righteousness and just generally discredits the writer.

Violence is violence, it has no moral justification, only an evolutionary explanation that shows violence always existed, and will continue to exist because it does what it’s intended to do—resolve conflicts of interest in the fastest way possible.


6. Aliens won’t care about our morality or ethics

And they will, in effect of having different morals, also have a different perception of violence, cruelty, honesty and fairness. Keep this in mind, and don’t have the inhabitants of a distant star system display Western morality without explaining the similarity in a plausible way.


7. Highly advanced alien technology will look like magic

Mr. Clarke was a very smart man.

If you could go back in time even one measly century, and take your iPad and a Leap with you — what do you think people will think of them? And these were things we invented and developed to fulfill our own needs and desires. What about pieces of technology alien beings invent in a society that’s millennia ahead of ours to fulfill needs and desires we don’t share?


8. Technologically superior aliens would have AIs

This is something I’ve always wondered about. If AIs are inevitable in the exponential evolution of technology in an intelligent species, then why don’t superior aliens have AIs? Why don’t they send androids and intelligent robots down to Earth, instead of coming down themselves, clad in space suits we can damage? Why don’t they send intelligent unmanned ships and military drones into combat or dangerous missions, while they watch on a screen from the comfort of a different solar system, instead of risking their own lives?

There have been too few works of science-fiction dealing with alien AIs (the only one coming to mind is Iain M. Banks’ Culture series). There should definitely be more!


9. Alien life doesn’t necessarily look like life

Our only term of comparison is life on Earth. This fact is overlooked so easily by even otherwise highly scientific people, it sometimes makes me wonder if our current ways to search for life are in fact hindering us in finding it. Given that the natural circumstances of our planet are very rare in space, and the probability that there is other life out there is high in relation to the number of star systems and planets, we’re most likely genetic rarities, or freaks of nature.

The likelihood that life will seek to be efficient and versatile is high, and there is a high probability that most life in our galaxy is carbon, boron or silicon based. But how it will look and act like depends solely on its environment. And so far, all environments we’ve discovered are not like Earth and would thus steer life on an evolutionary path that is very different that on Earth.

Many if not most alien species will be biologically different from us. Who says we’ll recognize them as “alive” at all? What if the rings around an alien planet are individual, conscious entities? Unless they want to make themselves known to us for some reason, we’ll not be able to recognize them as sentient because we only expect to encounter life that has something in common with the one we know from home. And what if we encounter some highly intelligent viruses out there? Will we even be able to distinguish their attempt at communication from an infectious alien disease we must fight against?


10. Alien societies will have own beliefs, if only as part of their history

Religion developed as a way to explain phenomena before there was science, and to assure individuals of the meaning of their existence. It is this need to define self-worth by external criteria, which is part of the human being, that led to the development of religion. Aliens will have experienced a somewhat similar development in the pre-scientific era of their societies, and it will play a role in their history, if not their present. So even for atheist writers such as myself, ignoring religion in the creation of an alien species is negligent (especially if that species is otherwise presented in detail), and basically similar to ignoring the effects of technological development on the way a species defines itself.


11. Communication happens on many channels

We communicate with words and images, combinations of sounds or shapes that carry meanings we convened upon and recognize. Most birds communicate only with sounds, some with additional body language. Some species of marine creatures communicate only with light signals. Most insects communicate with chemical cocktails. Some insects, however, communicate by percussion, hitting the ground with their bodies in a certain pattern, akin to a Morse code, or by “rocking their boats” i.e. playing the strings of their webs like a musical instrument. In fact, insect communication types are the vastest in variety and awesomeness that our planet has to offer.

It is not a given that all intelligent species will develop language the same way we have, by using combinations of sounds or images to form words and symbols. Maybe they’ve always used pheromones… or vibration carried by solid matter. Think of how their technology would be tailored to accommodate that, and how we could establish communication with them. Certainly not by emailing them the Oxford dictionary — or can you learn Chinese solely by reading a dictionary written entirely in Chinese? Most likely our body language will differ greatly from theirs as well, so waving at them and shaking hands on first contact is probably a very bad idea.


12. Aliens to the rescue

Don’t put an alien species into a story only to solve a problem of humanity. This includes aliens who come to give us the cure for cancer and only ask for water in return; aliens who teach us how to get unlimited energy and only ask for… willing females in return; or worst of all, aliens who happen to have a solution to our biggest problem but it’s unimportant to them and they just give it to us because they’re such nice guys and just want the love and respect of Mighty White Man. Puh-lease.

It doesn’t matter how probable you calculate this to be in reality, in fiction any significant alien intervention in human matters had better serve a damn good purpose, otherwise it’s just bad worldbuilding or a cheap plot gimmick.


13. In a pluricultural future, aliens will have a deep impact on our daily lives

Even if we don’t live on the same planet or space-station, in a future where humans have successfully established relationships with alien species of any kind, even the little details of a human’s daily life will be profoundly affected.

The clothes we wear will have to respect the aliens’ tastes, or at least the creations of our fashion industry will be greatly impacted by “alien couture”. The things we find in grocery stores or food-generators will be influenced by alien tastes, and delicacies will be even more freakish than they are now. The books we read will have very different themes and the music we listen to will be tailored as to not offend or even damage alien senses. And just think of the many awesome new ways in which alien technology will change ours!


Published by Veronica Sicoe

Science Fiction Author — I deliver the aliens.

24 thoughts on “13 More Aspects About Aliens That You Should Consider

  1. Great post…. I love all the points you’ve made, especially #9 (sorry guys, no sexy blue Neytiri)

    Two other points are (1) that they’re probably not going to come from a world with 1G so they’re either going to bounce around like we do on the moon, laughing and giggling at how high they can jump, or they’re going to stay in orbit because 1G would crush them to a pulp. And (2) they will have evolved as part of an ecosystem that will be every bit as complex and intricate as ours (War of the Worlds nailed this one with its red creepers crawling all over the place).


    1. Complex alien ecosystem — exactly! Think of all the worlds visited in Star Trek or Stargate, where an entire planet was apparently inhabited by a single village (okay, a single culture) and there were 2 types of trees and 2 of animals, and they looked remarkably similar to Earth’s. And the rare exceptions were just that, rare exceptions.

      Thanks a lot for the comment & the tweets, Peter! 🙂


  2. Uh-oh. I feel like an outcast!

    There are no humans in my stories. At all. Technically, they exist, but only where they belong — on Earth (well, maybe they finally made it to Mars and a bit beyond, IDK), doing their everyday shit, which I have no interest to write about.

    Earth is not the center of the Universe. 🙂


    1. That sounds very interesting, Jelena. A story without humans, only aliens, going about their businesses — sounds like the natural order of the Universe to me. 😉


  3. Pretty much spot on from top to bottom. Often too much is sacrificed in the name of relatable character traits when it comes to depictions of alien life in fiction. The “rubber forehead” aliens are sometimes explained away by genetic seeding and the like, which is alright if you’re bent on having humanoid aliens, I guess, but that still doesn’t account for the ridiculous lack of cultural diversity that you usually get.

    You mention Star Trek up there^, and that’s a perfect example. They were often so focused on tackling human issues in those shows (which is understandable, since that was one of Roddenberry’s primary goals from the get go) that you would get those token “alien of the week” races with no cultural diversity within their own species. A lot of space opera has this problem, and it’s something I hope to learn from when I get around to incorporating alien cultures into my own work (amongst other things).

    Great post!


    1. Thanks, James! I love Star Trek, but it’s not particularly because of the throw-away aliens, but the permanent characters and overall ideas. 🙂


    1. On a low gravity world, 100 of our kg won’t be much of a weight. Weights scale relative to gravity, the molecular structure of living tissue doesn’t. If large mammals on Earth, like elephants and rhinos, can handle their tons with four legs, where’s the evolutionary purpose of having 2 extra limbs on a world where a large animal weighs little? Every appendage requires energy to be kept alive and functioning. It’s just not efficient from an evolutionary point of view, and thus not very plausible.

      Another example of poor worldbuilding are the floating islands who seem to be suspended in zero gravity, yet there is gravity for the flying characters at that altitude, which is implausible.


  4. For #4: “And I’m looking at the Avatar makers here—a movie with some of the WORST worldbuilding mistakes I have ever encountered—who gave all large beasts on a low-gravity world 6 powerful, muscle-packed limbs to… sustain their flimsy weight?”
    Vero~ Obviously there is a Viperwolf fight club. And don’t even ask why we didn’t hear about it.

    As to #11: So, you are saying a chest bump is right out?

    For #10, I decided that if an agent was interested in my WIP, but asked me to remove the religious undertones (and even overt discussion by a minor character) for whatever reason, that I’d just keep looking. I do think it is hugely important to acknowledge the importance that a society (of any persuasion) collectively answers as to where they came from, what it all means, etc.

    Cheers. Another great post!


    1. Viperwolf fight club sounds cool! 😀

      Chest bumps, fist bumps, loud grunting at football games… all highly advanced communication.

      As long as the novel is good and is a novel, not a treatise or propaganda material, as long as it’s a story with plot and characters, is entertaining and coherent, there’s no reason IMO to discredit it because of a religious, political or otherwise “hot topic” in it. That’s just ignorant.

      Les Edgerton recently put up a blog post about something similar, where publishers refused to publish his otherwise great and respected book, The Bitch (crime novel) because it wasn’t politically correct. I find such ways to evaluate novels inappropriate.

      Thanks for the comment, Courtney!


  5. Love the blog. Thanks for the mention. You make some more great points and thoughtful things to think about when writing science fiction. Aliens are awesome, and your humor keeps me falling out of my chair laughing.
    Another good one!!


    1. Thanks, Sheron! I’m glad you liked it. It was your blog post that inspired me to do the follow up, and once it escaped my mind and went on Twitter… well… here it is. 🙂

      Wish you a lotta fun writing aliens — characters in general — they’re the hearts of a story!


  6. Wonderful article. One of my favorite alien species has always been the Moaties. JP went to great lengths to establish their culture, history, and biological challenges to their civilization. I hope to rise to the challenge of creating such alien aliens in my WIP by giving them a LOT of forehead ridges. Like, seven, at least.


    1. Thanks, Brian! 🙂 I’m glad you liked it!

      You’re a mind-reader (or an insanely well disguised AI appendage staring at my desk from the laptop cam) because I’m reading The Mote right now! 😀

      Your aliens had better have an intricate henna tattoo on their cheek as a genetic marker of their species as well, or those ridges would just be… pathetic.


    1. Well… I must say… using you for info is much better than social media like spacebattles.com. They are mostly about fandom, and the best you get from them is how IRL physics would effect any scifi material you choose to make to help your story along.

      One personal question… did you take writing classes in order to make you a better writer? Or did you just do your own research through books and online research (which is what I have already done, and I have learned what is useful and what isn’t).

      I especially like how you condense what is most needed rather than being verbose and useless, like my review of this book (classics explorer is me, I gave 1 star, but would have liked to give it ZERO)

      I want to be an author someday, but somehow I figure that taking classes is probably the way to go, even with writing on my own as well. What do you think?


      1. The book was writing fiction for dummies, I meant to post it earlier… downright horrible.


      2. I’ve not taken any courses in creative writing or science fiction related things. I’ve learned most of what I know by studying a lot on my own. For example, here’s a list of the writing craft books I’ve read and found useful. This is from early 2015, so the list has sort of doubled in the mean time, but these are still some very comprehensive books to start with.

        I don’t think courses are necessary, unless there happens to be a good & affordable one nearby. Most of the valuable learning happens hands-on anyway.

        You can also get a ton of information and advice on public forums. There’s a whole bunch of them, but the ones I’d suggest would be AbsoluteWrite and SFFWorld. For self-publishing and writing business information I’d always go to the KBoards Writer’s Cafe.

        Wish you the best of luck! 🙂


  7. Point #3 might be a problem in my current design. Can it be subverted if the aliens in question have a biological use for humans (Not as food)?


  8. Veronica:

    Thank you for these posts. I’m going to add bookmarks so I can come back and remind myself of the points you so clearly make.

    I’ve been wrestling with writing a rather broad sweeping science fiction series of books under the umbrella name “Diaspora Generations.” Aliens is one of the things I really wrestle with and why I wrestle with it is the very points you make. Aliens are just that alien. While if you read some of my manuscripts (haven’t quite tied them together) it looks like a human dominated universe. The fact of the matter is I haven’t quite determined what the effect the aliens are going to have in the story line yet except for an alien race (to be named) called by the humans by the pejoritive “the locusts”. Those aliens consider any other creatures not them to be food but now reading your lists I may have to rethink that.

    Anyway you’ve reinforced some thoughts I already had and caused me to think about others.


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