science fiction – Page 4 – One Thousand And One Parsecs

Y is for Yesteryear

They say that the golden age of science fiction is about twelve years old. That’s definitely true for me.

My first exposure to the genre was Star Wars: A New Hope. I saw it when I was seven, right around the height of my dinosaur phase. Everything about the movie completely blew me away, from the Jawas and Sand People of Tatooine to the stormtrooper gunfights and lightsaber duels. After watching Luke blow up the Death Star, I spent the next few hours running around the yard pretending to fly my own starfighter.

In a lot of ways, I’ve never really stopped.

My parents made me wait until I was nine to watch The Empire Strikes back, because it was rated PG. Without any exaggeration, I can say that those were the longest two years of my life. I was literally counting down days by the end, and to pass the time without going crazy, I read up on all the books about space that I could possibly find.

My father bought the original X-wing flight simulator game somewhere around then, and I soon became totally engrossed in it. Since the 386 was our only entertainment system (no Super Nintendo–I had to visit a friend’s house for that), X-wing became the defining game of my childhood. I spent hours and hours on that game, to the point where I knew exactly which simulated missions the characters from the books were flying and how to complete them faster and easier.

I thought The Empire Strikes Back was a little slow the first time I saw it, but it’s since grown on me, to the point where now it’s my favorite film in the whole series. Thankfully, my parents let me watch Return of the Jedi the next day, and for the next few months my life felt utterly complete.

Around this time I discovered the Star Wars novels and soon immersed myself in them. The Courtship of Princess Leia by Dave Wolverton soon became one of my favorites, as well as the Heir to the Empire trilogy by Timothy Zahn and the X-wing series by Michael A. Stackpole.

But it was Roger Allen McBride who first introduced me to a different flavor of science fiction with his Corellia trilogy. As I mentioned in V is for Vast, those books had just enough of a touch of hard science to intrigue me about the other possibilities of the genre. That was the last Star Wars series that I read before branching out into other works of science fiction.

The Tripod trilogy by John Christopher was my first introduction to the dystopian / post-apocalyptic genre, depicting an enslaved humanity after an alien invasion. Those books really captured my imagination for a while. The Giver was also quite interesting and thought provoking, though since it didn’t involve spaceships or aliens it wasn’t nearly as compelling.

I read a lot of fantasy in my early high school years, including Tracy Hickman, Lloyd Alexander, and (of course) J.R.R. Tolkien. While I enjoyed those books and immersed myself in them for a while, my true love was still science fiction. For almost a year, I watched Star Trek: Voyager religiously with my dad. And every now and again, I’d pick out a science fiction book from the local town library and give it a try. That’s how I discovered Frank Herbert’s Dune.

In eleventh grade, my English teacher had us choose an author and focus our term papers solely on their books for the entire year. She suggested I choose Orson Scott Card, but I chose Cormac McCarthy instead. I’m not sure if that was the worst decision of my high school career, or the best decision, since assigned high school reading tends to make any book feel like it sucks. I discovered Ender’s Game the following summer, and finished it in a delirious rush at 3am the morning after checking it out from the local library.

More than any other book, Ender’s Game cemented my love for the genre, and showed me just how powerful and moving the genre could be. It opened so many insights into the world and human nature, reading that book made me feel like I’d opened a pair of eyes that I didn’t even know I’d had. Looking back, that was probably the moment when I knew I would be a science fiction writer. I’d known I was going to be a writer ever since I read A Wrinkle in Time at age eight, but to be a science fiction writer specifically, that goal was probably cemented by reading Orson Scott Card.

After high school, I served a two year mission for my church, during which I didn’t read any novels or watch any TV or movies. When I came back, though, Orson Scott Card and Madeline L’Engle helped me to ease through the awkwardness of adjusting back to normal civilian life. When I left for college, I expanded my horizons even further, starting with Isaac Asimov’s Foundation series and Edgar Rice Burrough’s Princess of Mars.

When I discovered Pioneer Books in downtown Provo, I knew I’d found my favorite bookstore in Utah Valley. I have so many fond memories sitting cross-legged on the floor in the science fiction section, browsing through the musty used books for hours at a time. That’s where I discovered C.J. Cherryh, Arthur C. Clarke, Robert A. Heinlein, Ursula K. Le Guin, and numerous other authors who are among my favorites today.

When I discovered Spin, Robert Charles Wilson soon became one of my favorites. I picked up that novel as a free PDF from Tor, and read it over the summer while studying abroad in Jordan. Once again, that same hard sf sensibility I’d gotten from Roger Allen McBride touched me in an unforgettable way. But it was the human element of that book that really moved me–in fact, it’s always been about the human element. The world building in Downbelow Station was great and all, but the romance of Merchanter’s Luck had a much more lasting impact. Starship Troopers had some good ideas, but it was Mandella’s personal journey in The Forever War that moved me almost to tears. The intrigue of the Ender’s Shadow series was quite entertaining, but it was Ender’s Game and Speaker for the Dead that really taught me what it means to be human.

I finished my first novel, Genesis Earth, shortly after returning from that study abroad, and tried to capture the same sensibility from Spin as well as the intimately human element. Since then, I’ve written several more sci-fi novels, some of them tragic, some triumphant, but in all of them I’ve tried to get as close as I can to the personal lives of the characters. I don’t know if I’ll ever write a character portrait so intimate as Shevek’s in Ursula K. Le Guin’s The Dispossessed, but I certainly hope to someday.

For me, science fiction started out as a wonderfully exciting entertainment and turned into something much more meaningful. If there’s anything the genre has taught me, though, it’s that the two aren’t mutually exclusive–that you can have your adventure and learn what it means to be human as well. Indeed, the more imaginative the adventure, the greater the truths I’ve taken from it.

Because of that, even though I’m almost in my thirties now, I can’t possibly foresee a time when science fiction isn’t a major part of my life. It’s a love affair that’s grown just as much as I have, and continues to grow with each new author I discover and each new book I write. When I’m old and grizzled and pushing eighty, I’m sure there will still be a part of that twelve year old boy in me, still running around the yard flying his starship.

X is for Xenocide

This post isn’t just about the third book in the Ender’s Game series–it’s about the genocide of an entire alien race, which is actually a fairly important trope in science fiction.

Of all the evils of our modern era, perhaps the most heinous is the systematic extermination of an entire race or ethnicity. These acts of genocide not only cross the moral event horizon, they create specters and villains that live on from generation to generation. Just look at how the Nazis are portrayed in popular culture–even today, they are practically mascots of the ultimate evil.

And for good reason. There really is something evil about the total annihilation of a foreign culture. It’s one of the reasons why terms like “genocide” and “ethnic cleansing” are so controversial, especially in conflicts that are still ongoing–and there are so many unresolved conflicts where the systematic and purposeful annihilation of a race or culture is still happening.

Is wholesale genocide a phenomenon unique to our modern age? Probably not, but modern science has enabled it on a scale that was previously impossible. This became all too clear to us after World War II. Only a generation before, great numbers of people believed that we were on a path of progress that would eventually culminate in world peace. If there was any of that sentiment left, it was shattered with the liberation of Auschwitz and the bombings of Hiroshima and Nagasaki. Suddenly, we realized that systematic mass destruction and genocide were not only possible, they were a modern reality.

It should come as no surprise, then, that science fiction immediately began to explore this issue. From Frankenstein to 1984, science fiction has been full of cautionary tales of science gone wrong, issuing a critical voice of warning. But after 1945, it went much further, exploring the issue in ways that can only be done in a science fictional setting.

Is genocide ever morally justifiable? In our current world, probably not, but what if an alien race was bent on our destruction? If their primary objective was the utter annihilation the human race, and negotiation was impossible? Wouldn’t it be justifiable–perhaps imperative even–to stop such a race by annihilating them first?

This is what is meant by the term “xenocide.” A portmanteau of “xenos,” the Greek word for stranger, and “genocide,” it denotes the complete extermination of an alien race.

Xenocide forms the core conflict of Orson Scott Card’s Ender’s Game series (hence the title of the third book) and features in The Forever War by Joe Haldeman. Battlestar Galactica presents an interesting twist, where the cylons debate the ethical questions surrounding the complete annihilation of the humans. And then, of course, there’s all the time travel stories involving Hitler–let’s not even go there.

The interesting thing about xenocide stories is that even though they describe a dilemma that does not currently exist in our modern world, they inevitably come down to issues of Otherness that lie at the very core of the evils of genocide. In order for xenocide to be morally justifiable, you have to know your enemy well enough to know that there’s no possibility of forging any sort of peace with them. And to know them that well, they cease to be quite so alien. It’s one of the major themes in Orson Scott Card’s work–that to defeat an enemy, you have to know them so well that you can’t help but love them.

In our modern world, genocide is only possible when an ethnic group is relegated to the position of Other–when they are made out to be so different and unlike us that we can never possibly relate to or mix with them. They become “sticks” (Germany), “cockroaches” (Rwanda), “animals” and “barbarians” (Israel). That is precisely why it makes us uncomfortable in stories about xenocide–because it turns the well-intentioned saviors of humanity into knights templar, or possibly the very monsters they are trying to destroy.

By positing a situation in which genocide might actually be justifiable, science fiction helps us to understand exactly why it is so reprehensible–and that’s only one of the ways in which the genre can uniquely explore these issues. That’s one of the things I love so much about science fiction: its ability to take things to their extreme logical conclusions, and thus help us to see our own real-world issues in ways that would otherwise be impossible.

Since most of my characters are human, xenocide as such isn’t a major theme in my books, but genocide certainly is. In the Gaia Nova series, the starfaring Hameji look down on the Planetborn as inferior beings and think nothing of enslaving them and slagging entire worlds. That’s how Prince Abaqa from Stars of Blood and Glory sees the universe at first, but by the end of the novel he’s not quite so sure. Stella from Sholpan and Bringing Stella Home also deals with these issues as she comes to realize how it’s possible for the Hameji to hold to such a belief system.

If genocide is one of the ugly skeletons in the closet of this screwed up modern world, then xenocide is science fiction’s way of taking those skeletons out and dignifying them with a proper burial. By wrestling with these issues in stories set on other worlds, we are better able to humanize the Other and prevent these horrors from happening again on our own. In this way and so many others, science fiction helps us to build a better world.

U is for Universal Translator

In science fiction, whenever two characters from different planets or different alien races have to interact with each other, they almost always speak the same language or have some sort of universal translator that magically makes them able to communicate with minimal misunderstandings. This is especially common in Star Trek, though it happens in just about every franchise involving a far-future space opera setting of some kind.

I’ve got to be honest, I think this is a cheap plot device that almost always weakens the story. As a writer, it’s tempting to have something like this so you don’t have to deal with any pesky language barriers, but when you do this, you remove a major potential source of conflict, thus violating the rule of drama. Also, you make your fictional universe feel a little less grand, your aliens a little less alien. After all, if everyone can perfectly understand each other, then there must not be a huge difference between Earth and the far side of the galaxy.

There are some times when having a universal translator allows you to broaden the story and focus on other conflicts. For example, if some sort of interstellar legislation is under review in the grand galactic council, you can’t spend all your time focusing on basic communication difficulties.

However, if this is the case, then you can usually overcome the language barrier through other means–a galactic lingua franca, for example, or translation tools that may or may not misfire on occasion (much like Google Translate). Of course, if you’re writing a comedy like Galaxy Quest (or parts of Star Control II), then falling back on a universal translator is forgivable. But if you’re going for believability and a sense of wonder, this trope isn’t going to do you any favors.

While linguists and technologists have been working on translation programs for some time (and admittedly making some significant breakthroughs), I’m extremely skeptical that we will ever develop a perfect universal translator in real life. If we do, I expect we will have to develop a sentient AI as a prerequisite, since the nuances of language are so inseparable from the things that make us human.

Here’s how translation services like Google Translate work:

They amass an enormous database of language material by scanning websites, newspapers, and other documents.
They analyze this database to look at word combinations and frequencies, observing the likelihood that any one word will appear in combination with any others.
They compare these combinations and frequencies with those in other language databases to match words and phrases.

This data crunch method of translation works fairly well for simple words and phrases, but it falls apart in the more complex grammatical structures. I see this any time I try to use Google Translate with an Arabic source. Arabic is an extremely eloquent language, with all sorts of structures that simply don’t work in English. One mistranslated word can completely change the meaning of the entire text, and even when it works, the technically correct English translation sounds as if it’s full of errors.

The methodology also falls apart for languages that are too small to have much of an electronic database. The Georgian language is a good example of this. It’s spoken by only about 4.5 million people worldwide, most of them in the country of Georgia, which is predominantly rural. Internet access for most of the population is very limited, and most Georgians who do communicate online tend to use the Roman or Cyrillic alphabets more often than their own. As a result, Google Translate for Georgian is utterly useless–seriously, you’re better off just sounding out the letters and guessing at the meaning. There are some other sites like translate.ge that try to fill the gap, but they seem to rely on actual lexicons, not databases and algorithms.

All of this is between entirely human languages that developed in parallel on the same planet–indeed, languages between human cultures that have traded and shared linguistic influences for thousands of years. What happens when we encounter an alien race whose biology makes it impossible for them to make human-sounding noises? Or an alien race that communicates through smell or electromagnetic impulses instead of sound? What happens when humanity is spread out across hundreds of star systems, each of which periodically becomes isolated from the others for hundreds or even thousands of years? When our definition of human is stretched so thin that we would not even recognize our far-future descendents as anything but alien?

There is so much wasted potential whenever a science fiction story falls back on a universal translator. Case in point, compare Halo I, II, and III with Halo: Reach. In the first three games, the Master Chief’s universal translator enables him to hear exactly what the enemy Covenant troops are saying. This is great fun when you’re chasing down panicked grunts, but it tends to get old after a while. In Halo: Reach, however, the human forces haven’t yet developed a universal translator, so everything the Covenant say is in their original language. All of a sudden, the game went from a hilarious joyride to a serious war against aliens that felt truly alien. That one little change did wonders to the tone and feel of the entire game.

Needless to say, you won’t find a universal translator in any of my books. In Star Wanderers, the language barrier is the heart and soul of the story–it’s a science fiction romance between two characters from radically different worlds who don’t speak the same language, and yet overcome that to develop a strong and healthy relationship. In Sholpan and Bringing Stella Home, Stella knows a language that is fairly similar to the one spoken by the Hameji, but there are still words and phrases that elude her. This detail is critical because it impedes her ability to understand and adapt to the Hameji culture, leading to some major conflicts later in the book.

As someone who’s lived for significant periods of time in Europe and Asia and learned languages very different from English, I can say that the language barrier is not something that we as writers should avoid, but something that we should embrace. There are so many interesting stories that can be told when two characters don’t speak the same language. Please, don’t be lazy and write that out of the story through a cheap plot device! Let your aliens be truly alien, and your worlds and cultures so fantastic that we can’t help but feel hopelessly lost in them.

T is for Terraforming

[NOTE: this post is a reprint of an earlier post from the Trope Tuesday series, which you can find here.]

One of the problems with interplanetary colonization is that Earth-like worlds are fairly rare (though possibly not as rare as we once thought). In our own solar system, the only other world that comes anywhere close (Mars) is a radiation-blasted desert with only the barest hint of an atmosphere and a surface temperature colder than Antarctica. To get around this problem, you can do one of two things: build an artificial enclosed environment to house the colony, or change the world itself to make it more Earthlike–in other words, terraform it.

The actual science of terraforming is ~~way over my head~~ far too complex to do it justice in this post. Instead, I’ll just point you to the Terraforming Wikipedia page as a starting point and focus on how the concept is used as a story trope.

According to tvtropes and Wikipedia, the term came from a 1942 novella by Jack Williamson titled “Collision Orbit.” The concept of changing the environment of an entire planet actually goes back much further, with H.G. Wells subverting the trope in War of the Worlds (instead of humans terraforming other worlds, the hostile Martians try to xenoform Earth to make it habitable for them). Before the U.S. and U.S.S.R. put probes on the surface of Mars and Venus, it was fairly common for writers to speculate that those planets were able to support human life, at least on a basic, rudimentary level. Once the science showed that that isn’t actually the case, terraforming as a story trope really began to take off.

Today, this trope occurs commonly across all ranges of the Mohs scale. Soft sci-fi stories (such as Firefly) use it as an excuse to have planets that look and feel like Earth. Hard sci-fi stories (such as Red Mars, Green Mars, and Blue Mars) use it as a fundamental premise, or to pose questions like “what is the ultimate destiny of human evolution?” or “how important is it to our species’ survival that we spread out beyond Earth?” Although it’s not something that we as a species have (yet) done, our present science seems to place it well within the range of the plausible, and that means that makes it fair game for any kind of science fiction.

In order to be believable, however, any significant terraforming project requires two things: resources and time. LOTS of time. We’re talking on the order of centuries and millenia here. Because of that, stories that use this trope generally fall into the following categories:

The terraforming happened a long time ago and is part of the world’s ancient (or near ancient) history.
The terraforming is on-going and directly impacts almost every element of the world’s culture and setting.
The terraforming has failed in some way, which may (or may not) make it a key element in the story conflict.

As with generation ships, the scope of this trope spans more than just the interests of a single character–it deals with the ultimate destiny of entire cultures and civilizations. In hard sci-fi stories, the planet that’s being terraformed may actually become more of a character in itself than the individual people who are terraforming it. Unless they have some form of immortality, they have little hope of ever seeing the ultimate end of it.

Of course, that almost makes the project more of a religion to the colonists than a science, with all sorts of interesting philosophical and story implications.

Why is this trope so widespread in science fiction? I can think of a few potential reasons. First, it hits on some of the key issues that lie at the very heart of the genre, such as the ultimate destiny of humanity and the ethical issues surrounding our ability to play God through the wonders of science. Also, it captures the imagination in a way that few other tropes can equal. Because the scope of any terraforming project is so vast, the implications touch on almost every key element of the story, including setting, character, and conflict.

But on an even more fundamental level, it hits on one of the key elements of any fantasy magic system: limitations. We can’t live on an alien world because the conditions are too hostile, but we can’t just wave our hands to make it Earth-like either. We have to undergo a painstaking, laborious process that could unravel at any point and throw everything we’ve worked for into chaos. We have to dedicate our whole lives to the project for dozens of generations before it will ever pay off. There are no shortcuts–none that won’t strain our readers’ suspension of disbelief, anyway. But if it all works out, then we will have created a new Earth–and how is that not magic?

Needless to say, I’m a big fan of this trope. I’ve used it in just about every science fiction story I’ve written, though I probably play with it the most in Star Wanderers. The main character of that story comes from a world where a terraformation project failed, having severe religious implications that drive the whole series. Sacrifice is largely set in orbit around a world that is midway through the terraforming process. Elswhere in the Gaia Nova universe, people build domes just as often to keep humanity from screwing over a terraformed world as they do to provide room to live on one that isn’t. After all this, though, I feel like I’ve only begun to scratch the surface of this trope. You can definitely expect to see it in my work in the future.

S is for Space Station

downbelow_station Planets are not the only setting for science fiction stories–space stations are common as well. From the Death Star (“that’s no moon…”) to Downbelow Station, the Venus Equilateral to ISPV 7 to the Battle School in Ender’s Game, space stations are a major staple of any space-centered science fiction.

The reasons for this should be fairly obvious. Before we can go to the planets and the stars, we need to have a permanent presence outside of this massive gravity well we call Earth. The easiest and most logical place to expand first is to orbit, where supplies can be ferried up without too much difficulty and astronauts can escape in case of an emergency. Indeed, with the International Space Station, that’s exactly what we’re doing right now.

In science fiction, of course, space stations go much further than they do in real life. They’re often giant orbital cities, with thousands of people living and working there permanently. Often, they feature some sort of rotating toroidal structure in order to simulate gravity. If there are settlements on the planet below, the station often serves as a major hub for commerce, serving as a waypoint for interstellar merchants and wholesalers who ferry their wares up to orbit. And if the planet is still being colonized, then the space station often serves as an important umbilical to the outside universe.

They can also have strategic value in the event of a war. Battleships need to be serviced too, after all, and a station’s position in orbit can provide an excellent platform from which to bombard or lay siege to the planet. Alternately, outposts at more distant locations like the Lagrange points can serve as a staging ground for future attacks–a sort of astronomical “high ground,” if you will. If nothing else, abandoned stations may contain supply caches that can aid a fleeing starship, or provide shelter behind enemy lines, as was the case with the first Halo game.

Stations can come in all sorts of different flavors, from the puny to the magnificent. The most eye-popping station of all is probably the Ringworld from Larry Niven’s series of the same name. As the name would imply, the station is a giant ring–so huge, its circumference is the orbit of a habitable planet, with the sun at its center! Gravity is provided by rotation, and night and day by giant orbiting panels that block out the sun at regular intervals.

My favorite stations, though, are the more realistic ones–the ones that I can imagine myself living on someday. That was one of the things I enjoyed about Downbelow Station by C.J. Cherryh–her depiction of human expansion into space is eminently believable, and her stations are a natural extension of that. I also really enjoyed her focus on the social dynamics of living on a giant station, and what it would be like to live in such a society.

The Battle School from Ender’s Game is another huge favorite of mine. One of the advantages of building a structure in space is that gravity becomes malleable, so that some parts of the structure can simulate Earth-surface gravity while others leave people completely weightless. The Battle School uses that to its advantage, with the main training room a zero-g laser tag battle arena, where the students have to learn how to stop thinking in terms of the planar dimensions, where “up” and “down” have any meaning. It’s really quite fascinating.

It should come as no surprise that space stations pepper my own works. They’re especially common in the Star Wanderers series, where few worlds have been terraformed and orbital platforms make up the majority of human living space (at least in the Outworlds). In Sholpan and Bringing Stella Home, James, Ben, and Stella are all from a space station–a distinction that is especially useful for Stella, since her Hameji captors despise the “planetborn.” Genesis Earth takes that a step further, as spaceborn Michael and Terra have never been to the surface of a planet before until midway through the novel. Just as going into space is paradigm shifting for us, the experience of walking on a planet proves just as transformative for them.

O is for Orbit

One of the key things that makes space different from Earth is that nothing is ever stationary. Anything close to our planet that isn’t moving at a good clip (measured in miles/kilometers per second) is liable to plummet like a brick. Gravity is still in effect, even though you’re in free fall and thus don’t really feel it.

The way to get around the falling problem is to orbit whatever celestial body you’re plummeting towards. When your tangential velocity gets high enough, gravity becomes your centripetal acceleration, and the system becomes rotational rather than discrete. In other words, you’re still falling, but you’re moving fast enough to cross the edge of the horizon before you hit.

Just to give you a scale of how fast you have to go to make this work, the International Space Station (ISS) is orbiting at about 230 miles (370 kilometers) above sea level, and it makes a complete rotation around the earth every 90 minutes. That means that the good folks who live and work up there see about 16 sunrises and sunsets per day.

If you’ve spent your whole life living planetside, orbital mechanics can be a bit difficult to grasp. Here are just a few of the basics:

Since orbit is basically free fall, you don’t need to fire your engines to stay aloft. In fact, once you’re parked in a stable orbit, you can stay there almost indefinitely. This is how satellites work: we use a rocket to put them in position, but once they’re there all they need is a minor adjustment from time to time. The moon is basically a giant natural satellite, and it doesn’t need any sort of thrust to stay aloft.

As objects fall closer to the body they’re orbiting, they orbit faster. Just think about how figure skaters speed up when they pull their arms in closer to their bodies. The main reason for this is that the object has a much shorter distance to travel to make a complete revolution. To understand how this works, take a CD and measure the inside edge versus the outside edge.

However, since your tangential velocity is proportional to your centripetal acceleration (ie gravity), the way to jump to a higher orbit is to speed up. Conversely, the way to fall to a lower orbit is to slow down. An object’s angular momentum (mass X tangential velocity) is proportional to the distance of the object from the rotational system’s center of mass, so changing the object’s velocity will also change its distance from the center.

So if you’re in a spaceship and you’re about to collide with an object on a parallel orbit, the way to avoid it is not to nose your ship up like an airplane. Instead, fire your engines and try to go faster (or slower, as the case may be). It’s a bit counter-intuitive, but your altitude will change accordingly. The anime/manga series Planetes really got this right.

However, even though you’re moving faster at a higher orbit, you have a lot more distance to travel, so it actually takes longer to make a complete orbit. If you go high enough, you can eventually get to the point where the orbital period equals the rotational period of the celestial body you’re orbiting. We call this a geosynchronous orbit. If you’re orbiting around the celestial body’s equator, then to a person on the surface, it appears as if you’re stationary. You’re not, of course–nothing in space really is–but both you and the person on the planet’s surface are moving in tandem, so that’s how it appears.

Ever wonder why satellite dishes all point in the same direction? This is why. The signal comes from a satellite in geostationary orbit, where it doesn’t move relative to the people on the surface. Thus, if you know where to point your dish, you will always get a signal since the satellite doesn’t appear to move.

An orbit doesn’t have to be circular, but the barycenter (ie the center of mass for the whole system, where the mass of both objects cancels each other out) has to be at one of the focal points of an ellipse. This is how comets work. An object in an elliptical orbit will speed up when it gets closer to the object it’s orbiting, and slow down when it gets further away.

It’s possible–indeed, quite common–to orbit two celestial bodies simultaneously. For example, since the Earth orbits the sun, anything orbiting the Earth must also orbit the sun at the same time. If you’re close enough to the Earth, this doesn’t really matter since the Earth exerts a much more immediate force. But when you get further away, interesting things start to happen.

A Lagrangian point is a point of gravitational balance between two orbiting celestial bodies of unequal mass. Basically, they’re points of equilibrium where objects appear to remain stationary, so long as they continue to orbit in tandem with the other two celestial bodies.

In science fiction, these are great places to put space stations and other orbital settlements, since they appear as fixed points relative to the planet or moon that they’re moving around. In real life, asteroids tend to clump around these points in a planet’s orbit, especially the L5 and L4 points. Jupiter has so many of them that we call them the Trojans and the Greeks.

Since orbital mechanics can be a bit difficult to grasp, a lot of science fiction gets it wrong, especially space opera. For a recent example, just look at the Halo series–unless those Covenant ships have some sort of magical drive, there’s no way they could hover above the surfaces of planets the way they do. Orbiting does NOT equal hovering. And in Halo: Reach, where Jorge knocks out the main ship for the Covenant advance force … yeah, if a ship that large actually fell from orbit into the surface of a planet, it would be moving fast enough to make a crater the size of a small continent, kicking up enough dust and debris to cause a mass extinction event like the one that killed the Dinosaurs.

At the same time, when a science fiction story goes the length to get the orbital mechanics right, it can add a surprising amount of realism. A good example of this is Passage at Arms by Glen Cook. I loved how he depicted the orbital siege of the main colony world, with the way the orbital space battles looked like from the planet’s surface. The human forces were able to keep a toehold on space due to a low orbiting asteroid that the aliens couldn’t get to without exposing their forces to attack, and that served as the staging ground for the main characters to fight back.

For hard sci-fi, orbital mechanics is absolutely essential–you’ll be tarred and feathered if you get any of it wrong. For soft sci-fi like space opera, it’s not essential, but it adds a lot to the story if you can get it right. In any magic system, the limitations are what make it interesting. If you’re writing science fiction, then physics is your magic system, so knowing how it works can really add a lot to your story.

For example, in the recent Schlock Mercenary storyline, the characters board a spaceship with an artificial gravity generator centered around a large cylindrical pylon that runs the length of the ship. One of the implications of having Earth-strength gravity around such a small object is that you can actually throw a baseball into orbit. And that’s just the beginning! Needless to say, I’m really interested to see where Howard Tayler takes this story in the weeks and months to come.

Even though I write more space opera / science fantasy type stuff, I do the best I can to get my orbital dynamics right. You can see this in the space battles in Stars of Blood and Glory and Bringing Stella Home, as well as the setting elements in Desert Stars. When the desert tribesmen look up at the night sky, they gaze at the stars and satellites–hundreds of satellites, many of them starships bound for distant spaceports on the more civilized side of the world. One of the reviewers said that the world felt so real it was almost like he could reach out and touch it, so I guess I did something right. I’ll definitely keep it up in the future.

M is for Merchanter

If space is an ocean and interstellar colonization is happening on a grand scale, then it should come as no surprise that so many starship captains are intrepid merchants, traveling the galaxy in pursuit of a good business deal. Whether they’re doing it legally as entrepreneurs or illegally as smugglers, you can find these guys in almost any space opera, from Star Wars and Star Trek to Firefly and Foundation.

Ever since Marco Polo and Sindbad the Sailor, intrepid merchants have played a major role throughout history. The brave adventurers who travels to exotic locales to bring you all the best deals, these are often the guys at the forefront of exploration and expansion. After all, Columbus sailed the ocean blue to find a better trade route to India–discovering a new world was just a side benefit. The British Empire had its origins in mercantilism, forming the empire to protect their trade routes (and later, to secure markets and resources for their industrialized economy).

Unlike their real-world counterparts, however, space merchanters have a lot more challenges to contend with than sandstorms and bandits. Science fictional universes are teeming with all sorts of exotic dangers, from black holes and solar flares to space pirates and strange alien races. Unless FTL communication is in force, the immensity of space often makes it impossible to know exactly what to expect on your next FTL jump. And then there’s all the normal space stuff, like busted airlocks and critical failures in the oxygen recyclers.

The best stories, though, are the ones that world build their merchanters to the point where they form their own distinct society. This may overlap with the proud merchant race, though IMO it works best when it’s more than just a hat that everyone wears. The merchanters from C.J. Cherryh’s Alliance-Union universe are a great example, where the entire society has restructured itself around the nomadic spacefaring lifestyle. Another is Heinlein’s Citizen of the Galaxy, where the free traders have developed a strict social hierarchy that defines everyone’s role in running the spaceships.

Since space-centered science fiction largely grew up in the Cold War era, I wonder how much of this trope stems out of the clash between communism and capitalism. The original Star Trek certainly shows a lot of Cold War influences, with the Klingons originally playing proxy for the Russians. Is the genre’s fascination with the adventurous space merchant somehow an outgrowth of that world-shaping conflict? And if so, how do the stories differ on the Soviet side? It makes me wish I could read Russian, since the Soviets certainly had their own fascination with science fiction and space opera.

In my own work, this trope plays a central role. Most of the major characters in my stories are merchants of one stripe or another. James McCoy from Bringing Stella Home is the son of a merchanter, and comes from a mining colony where interplanetary trade drives the local economy (setting up the conflict for Heart of the Nebula after the Hameji take over).

But the trope takes special prominence in my Star Wanderers novellas, which was largely a reaction to C.J. Cherryh and Heinlein. I wanted to create a spacefaring society on the starbound frontier that revolved not only around trade and colonization, but much more personal struggles like finding love and fighting loneliness. In that sense, the stories are a lot more like Merchanter’s Luck than Downbelow Station–more about the lives of individual characters than the grand sweep of galactic history.

Either way, I’m a big fan of this trope. If you’ve got any examples from your favorite books, please share! Wish-fulfillment is a huge part of any fictional genre, and science fiction is no exception. If I could leave it all behind to become a merchant to the stars, you can bet I’d do it in an instant!

L is for Lost Colony

worthingsaga As we discussed in I is for Interstellar, space colonization is a major theme of science fiction, especially space opera. Of course, things don’t always go smoothly. Space is a really, really, really big place, and sometimes, due to war or famine or simple bureaucratic mismanagement, colonies get cut off from the rest of galactic civilization. They become lost colonies.

Some of my favorite stories are about lost colonies: either how they became cut off, or how they reintegrate after so many thousands of years. In many of these stories, the technology of these colonies has regressed, sometimes to the point where the descendents may not even know that their ancestors came from the stars. When contact is finally made, the envoys from the galactic federation may seem like gods or wizards.

Because of this technological disconnect, stories about lost colonies often straddle the line between science fiction and fantasy. After all, Clarke’s third law states:

Any sufficiently advanced technology is indistinguishable from magic.

Of course, the line between science fiction and fantasy has always been a fuzzy one. Hundreds of attempts have been made to define it, but they all fall short. In the end, it often breaks down to certain recurring tropes, like dragons and wizards versus ray guns and rockets, but even that doesn’t always work.

For example, Anne McCaffrey’s Dragonriders of Pern is technically about a lost colony far into the future, but it’s got dragons and castles and other tropes that belong squarely in fantasy. Then again, the dragonriders have to fight alien worms who invade every few dozen years from a planet with a highly elliptical orbit, so there’s still a strong science fiction basis undergirding the whole thing.

And that’s just Dragonriders of Pern. What about Marion Zimmer Bradley’s Darkover series, or C.S. Lewis’s Space Trilogy? Trigun is more western than fantasy, but it’s also full of sci-fi tropes like giant sand-crawling monster ships and a weird post-apocalyptic backstory. And then there’s all the Japanese RPGs that combine magic with mechas, with Xenogears as one of the best examples. For a distinct Middle Eastern flavor, look no further than Stargate.

It’s no coincidence that all of these stories feature a lost colony of one kind or another. When the characters don’t know that they’re living in a science fictional universe, it’s very easy to throw in tropes from other genres. By no means is it required–Battlestar Galactica and Dune are evidence enough of that–but they certainly present the opportunity to do so. After all, lost colony stories basically present a hiccup in humanity’s march of progress, breaking the essential science fiction narrative for all sorts of interesting side stories and tangents.

One perennial favorite of science fiction writers is to suggest that Earth itself is a lost colony from some other galactic civilization. That forms the entire premise behind Battlestar Galactica: the original twelve colonies have been destroyed in the human-cylon wars, and the last few survivors are searching for the legendary thirteenth colony of Earth, hoping to find some sort of refuge. Apparently, Ursula K. Le Guin’s Hainish cycle also plays with this trope, though she’s never very explicit with her world building. It can be a bit tricky to twist the lost colony trope in this manner, but if pulled off right it can really make you sit back and go “whoa.”

My personal favorite is probably Orson Scott Card’s The Worthing Saga, about a colony of telepaths that breaks off from a collapsing galactic empire and actually becomes more advanced than the rest of humanity. When Jason Worthing and Justice re-establish contact, the descendents of the galactics are basically pre-industrial subsistence farmers who view them as gods–which, in a certain sense, they almost are.

It’s a great story that really entranced me, not just for the science fictional elements but also for the distinct fantasy flavor. Orson Scott Card’s handling of viewpoint in that book is truly masterful, so that I felt as if I were viewing everything through the eyes of his characters. Since the farmers don’t know anything about their spacefaring ancestors, all the parts from their point of view feel like a completely different story. It was really great.

My first novel was actually a lost colony story, combined with a first contact. I trunked it a long time ago, but many of the earliest posts on this blog are all about my experience writing it. As for my other books, Desert Stars contains elements of this, though the lost colony in question is actually a nomadic desert society that lives on the capital planet of the galactic empire, just outside of the domes where all the more civilized folk live. Heart of the Nebula is basically about a society that puts itself in exile in order to escape the privations of the Hameji. And in… no, I’d better not spoil it. 😉

The lost colony isn’t one of the flashier or more prominent tropes of science fiction, but it’s definitely one of my favorites. It’s a great way to add depth and intrigue, as well as bend genres. For that reason, I think this trope does a lot to keep science fiction fresh.

D is for Droids

Some of the best-loved characters in science fiction don’t even have a heartbeat. Why? They’re robots, that’s why!

Unlike the mechanical “slaves” (the original meaning of the Czech root robota) that built your car or enable your GPS devices, these robots are a lot more human. In fact, the word “droid” is short for “android,” which comes from the Greek root for “man” (andr-) and means “manlike.”

In other words, the thing that defines these robots is that they blur the line between machine and man. And ever since they made their first appearance in some of the earliest works of science fiction (Frankenstein by Mary Shelley was arguably the first), that’s exactly what they’ve been doing.

Star Trek loves to play with this trope, from Data in The Next Generation to the doctor in Voyager. But where the droids in Star Trek tend to be angsty and existential, the ones who populate Star Wars already know their place and don’t have any qualms filling it.

My first exposure to droids was when I saw the original Star Wars trilogy as a little boy. An image of C3PO with his golden humanoid body wandering across the dune wastes of Tatooine will probably be stamped on my subconscious forever. That, and the little traveling flea market the Jawas ran from their sand crawler.

One of the neat things about droids is that you can go either direction with them. If you want to get all existential about the nature of humanity and whatnot, you can use them to explore those questions since they’re almost human but not quite. On the other hand, if you just want an exciting space romp with some unique and interesting characters, you can bring them out as regular characters.

An advantage that droids have over humans is that they’re harder to kill and easier to bring back to life. Star Wars leaned on this a lot, especially in episodes IV and V. When R2D2 got shot in the battle of Yavin IV, right before Luke blew up the Death Star, I just about died. And yet, they brought him back easily enough for the throne room scene because he’s a robot–all they had to say was “we’ll fix him up” and you knew that everything would be better.

So yeah, droids. I haven’t done much with droids yet in my own writing, mostly because I’m a bit conflicted in my thoughts about the upper limits of AI (which I explored somewhat in Genesis Earth). Most of my robots are actually cyborgs, and that’s something completely different. Still, I can see myself playing with this trope at some point in the future, probably when/if I introduce some aliens or start a new series.

C is for Cryo

I think every science fiction writer has a cryo (aka “human popsicle“) story sitting around somewhere, even if it’s just in the back of their head. It’s one of those tropes that keeps coming back, just like the alien invasion, the robot apocalypse, and the Adam and Eve plot.

The basic concept is pretty simple, even if the technology is a bit more complex: a human or animal undergoes rapid freezing in order to put themselves into stasis for an extended period of time. Months, years, or even centuries later, someone thaws and resuscitates them so that they wake up in a completely different time and place.

There are a lot of good reasons why going into cryo makes sense in a science fiction universe. One of the more common ones is that the characters are colonists on a mission to an alien star, and their spaceship doesn’t have a faster-than-light drive. Rather than go through all the trouble of building a generation ship, the designers instead built a series of cryo chambers to put the colonists into stasis for an extended period of time. It might take centuries or millennia for the ship to reach its destination, but when it does, the colonists wake up as if it’s just been a long, dreamless night.

In The Worthing Saga, Orson Scott Card has a somewhat unusual rationale behind the prevalence of cryo in his universe (though they call it “hot sleep,” and it’s induced by a drug called soma). Only the rich can afford the technology, and the imperial overlords very carefully regulate the use of it so that there’s a clear hierarchy based on who goes under for the longest amount at a time. It’s a way for the citizens to achieve a simulated form of immortality, by skipping five or ten years every year or two of their lives.

In the Halo video game series, the UNSC uses cryo as a way to preserve their greatest military assets, the Spartans, for the times when they’re needed. The first game in the series starts when John-117, aka the Master Chief, is awakened just as the starship Pillar of Autumn crash lands on a mysterious alien structure. Like something from an old Norse legend, the third game ends when the Master Chief seals himself into the cryo chamber of a derelict starship, telling the AI Cortana “wake me when you need me.” (highlight to view spoilers).

So why are cryo stories so prevalent in science fiction? For one thing, they’ve been floating around in our cultural subconscious a lot longer than the genre has been in existence–just think of Sleeping Beauty or Rip Van Winkle. For another thing, the science is not that far-fetched. Certain animals can be revived after extended periods of frozen stasis, and according to the New York Times, it’s happened at least once with a human being. Science fiction has a long history of turning fiction into fact (for example, Arthur C. Clarke and communication satellites), so perhaps it’s only a matter of time before human cryotech becomes a reality.

I’m definitely a fan of this trope in my own writing. Genesis Earth has a chapter with a rather horrific cryothaw scene, which I later spun off into a short piece titled “From the Ice Incarnate.” I haven’t played with it much in my latest books, but in Heart of the Nebula which I hope to publish later this year, the cryotech plays a very important role in the plot. And if I ever write a prequel to my Gaia Nova series showing how that universe got started, it will feature a cryo colonization story. The main premise of that series is that a group of human colonists fled 21st century Earth and went into cryo to colonize a distant corner of the galaxy, but when they woke up, they couldn’t find Earth anymore, so it became something of an ancient holy legend (which is a major driver for Desert Stars).