Many SF readers will know Arthur C. Clarke’s 1973 novel Rendezvous with Rama, in which an alien starship passing through the solar system is at first mistaken for an asteroid. Twenty years after the novel’s publication, the first nonfictional interstellar objects were found: interstellar dust grains measured by the Ulysses spacecraft. It took another twenty-five […]

A fundamental consequence of Einstein’s Special Relativity is that no physical object can travel faster than light. A somewhat lesser-known consequence of this fact is a counterfactual. Any physical object (like a starship) traveling faster than light will break causality in exactly the same way a “time machine” would. That is, faster-than-light travel and time […]

Endor. Pandora. Acheron. What do these science-fictional places have in common? They’re moons. More precisely, habitable moons. In our own solar system, multiple moons—such as Jupiter’s Europa or Saturn’s Enceladus—host vast oceans of liquid water underneath their icy shells. But we have no moon whose surface would be habitable for life as we know it […]

Spoilers for: Halloween, Alien, The Babadook, Gaslight, Ready or Not, Rosemary’s Baby, A Nightmare on Elm Street In today’s world, women are often expected to be polite, to be selfless and self-sacrificing, and to be nurturing. Women never face more vitriol than when they express anger, an emotion that taints them with labels like “shrill,” […]

For many people, the COVID-19 pandemic changed perceptions about mental health, including my own. Suddenly, during lockdown, I was extremely restless at night, dreaming up worst-case scenarios for my family and community: What if my two-year-old son developed long COVID What if I lost my job? What if society completely fell apart? These worries have […]

Shall we go where no one has gone before? However, if we’re to stay there, we need to think about the next generation. Which means procreation in space—an issue we know very little about so far. What do we know, and what could be the potential obstacles of reproducing in space conditions? At least officially, […]

Live fast, shine brightly, die young: some stars are like that. But they are few. So are, cosmically speaking, stars like our own Sun, though it’s taking its “life” more slowly. By far, the most numerous stars in the cosmos are M dwarfs, also dubbed red dwarfs: tiny, dim stars that will never undergo the […]

The first time my four-month-old daughter Cedar spasmed, I had no idea I was witnessing a seizure. I had seen seizures in adults before, but this looked entirely different. Babies do strange stuff all the time, I thought, and this had been a brief thing. I dismissed the possibility that anything was wrong. But my […]

Almost everybody knows what a mermaid is, right? Human above the waist, fish on the bottom, oftentimes beautiful and seductive, sometimes terrifying and murderous: these creatures have appeared in a standardized form in Western art for hundreds of years. However, a deeper look at mer-lore shows a bounty of ancient and modern ways of thinking […]

In the stifling depths where nothing had been thought to live, life thrives. In the deepest regions of Earth’s oceans or embedded far within its crust, both macroscopic and microbial life flourish despite the pressure that would instantly crush a human. Do you think the Mariana Trench is deep with great pressure at its bottom? […]

The first decade of the 2000s was dominated by three groundbreaking heroines: Buffy Summers, of the television show Buffy the Vampire Slayer, Bella Swan from the Twilight series, and Katniss Everdeen from The Hunger Games. These three heroines exercised power in ways consistent with their personalities and had different levels of success in reaching their […]

There is no better example of how science fiction’s tendency to try and imagine a plausible future is like throwing a dart at a moving target than Larry Niven’s 1964 short story “The Coldest Place.” Up to that point, astronomers widely believed that the planet Mercury was tidally locked to the Sun: its rotation matched […]

Depictions of alien life-forms in movies and television are constrained by budget, by practicalities, and by storytelling purposes. For the purposes of budget and storytelling possibilities, Hollywood tends to highlight aliens with whom we can communicate, combat, cooperate with, and (if the original Star Trek is any indication) have sex with. Because of this, most […]

It’s telling that the Russian term used to describe speculative fiction doesn’t distinguish between science fiction and fantasy. The word is fantastika (фантастика)—the literature of the fantastic. It is used equally to reference the Three Laws stories of Asimov and the Middle Earth tales of Tolkien. It is this lack of distinction—combined with Russia’s rich […]

The history of space opera is one that prizes exploration and discovery; of finding new worlds and new civilizations or sights that human eyes have never encountered. Science fiction authors, tech visionaries, and science communicators have highlighted humanity’s long history of expeditionary travel as a sign that it’s our destiny as a species, one that […]

Last month, NASA’s Perseverance rover successfully landed on Mars to investigate current and past conditions on the Red Planet and search for life. With it, an old but still burning question inevitably arises: when—if—we find alien life somewhere, are we going to recognize it? The question is far less trivial than it sounds. The odds […]

“All children, except one, grow up.” These words open the novel Peter Pan, by J. M. Barrie. The story was published in and takes place in Edwardian England (after the death of Queen Victoria and slightly before World War I). Its pages are full of adventure, playfulness, terror, and levity. The novel was one of […]

“Marley was dead, to begin with,” says Charles Dickens in the most famous Christmas ghost story. While modern readers continue to enjoy A Christmas Carol, few are aware that it was one of hundreds of Christmas-themed ghost stories that flourished in written form during the Victorian era. These stories represented a perfect meeting of interest […]

Mary Shelley’s classic science fiction and horror novel, Frankenstein; or, The Modern Prometheus, was an instant hit when it was published in 1818. It was and is such a prominent part of literary and popular culture that modern audiences might be forgiven for thinking it her only novel. However, in addition to articles and travelogues, […]

It started with a motorcycle. Not a flying motorcycle. Not one with jump rockets, magnetic impeller wheels, or wall climbing spikes. Just an ordinary broken-down motorcycle Tom Swift fixed back in 1910. Then it was a motorboat bought at auction. It hardly seems much of a beginning for forty novels—one of the most successful young […]

People have always dreamed of flight. With the invention of the hot air balloon (specifically, the Montgolfier balloon, which is essentially the same design one might see at hot air balloon festivals today) this dream became a possibility for a startling variety of people—aristocrats and scientists, entertainers and artists, men and women. The popularity of […]

It’s hard to imagine its impact. The image was grainy, fuzzy, more tones of gray than black or white. There would be static, constant hissing and popping, lines rolling across the screen or, if the weather, or sunspots, or who knows what else interfered, it would roll around or break up completely. But it was […]

The sequence of the human genome is a living document that catalogs the history of migration, mutation, and environmental stressors that have shaped who we are and how we came to be. Sprinkled throughout the 3.1 billion DNA bases that comprise our genome are tens of thousands of protein-coding genes, regulatory regions that stipulate when, […]

Many of us are having experiences with isolation as we experience various degrees of shelter in place and quarantine measures. Some of us live alone, experiencing contact with others only from a distance. Others live like a group of astronauts in a spaceship, relying on each other for social contact but also infringing on one […]

When we think of archaeological digs, most of us picture Indiana Jones in search of ancient civilizations, but just as often, they are conducted on far more modern sites to learn how people lived in the recent past. Not long ago they conducted a dig in the Shenandoah National Park. Back in the twenties and […]

In his book The Castle of Crossed Destinies, Italo Calvino refers to tarot as “a machine for telling stories.” Writers have been using tarot cards as a storytelling device since the Italian and European Renaissance. Tarot appears in fantasy, science fiction, mystery, and speculative fiction works, including The Castle of Crossed Destinies. “Tarot” refers to […]

Things are not always what they appear to be. For example, take The Suns of Easter Island (1972), a film by French New Wave director Pierre Kast. The basic premise is familiar. So familiar, in fact, that one has to keep reminding oneself that it was made several years before a certain far better-known film. […]

Before science fiction was called science fiction, a hybrid category existed called scientific romance. Combining elements of fantasy, realism, and futuristic or alternative technologies, this genre formed a bridge between the medieval and the modern. In this essay we’ll explore the role that French author Jules Verne played in scientific romance and in the development […]

In February 2001, a draft version of the human genomic sequence, over three billion DNA base pairs in length, was completed. Knowing the sequence of the human genome encouraged the development of biotechnology that has advanced personalized medicine, biomedical research, and catalyzed provocative discoveries in human evolution and migration. Yet, perhaps the most fascinating discovery […]

It sounds familiar. A tough, intergalactic private eye goes to a city enslaved by a giant supercomputer, to arrest or kill its creator and shut down the computer. But somehow it isn’t familiar—or perhaps too familiar, as Alphaville is just bits of the real Paris. Then, there are the truly strange parts: the bizarre swimming […]