Science fiction in the context of Simon Newcomb

Edgar Allan Poe (né Edgar Poe; January 19, 1809 – October 7, 1849) was an American writer, poet, editor, and literary critic who is best known for his poetry and short stories, particularly his tales involving mystery and the macabre. He is widely regarded as one of the central figures of Romanticism and Gothic fiction in the United States and of early American literature. Poe was one of the country's first successful practitioners of the short story, and is generally considered to be the inventor of the detective fiction genre. In addition, he is credited with contributing significantly to the emergence of science fiction. He is the first well-known American writer to earn a living exclusively through writing, which resulted in a financially difficult life and career.

Poe was born in Boston. He was the second child of actors David and Elizabeth "Eliza" Poe. His father abandoned the family in 1810, and when Eliza died the following year, Poe was taken in by John and Frances Allan of Richmond, Virginia. They never formally adopted him, but he lived with them well into young adulthood. Poe attended the University of Virginia but left after only a year due to a lack of money. He frequently quarreled with John Allan over the funds needed to continue his education as well as his gambling debts. In 1827, having enlisted in the United States Army under the assumed name of Edgar A. Perry, he published his first collection, Tamerlane and Other Poems, which was credited only to "a Bostonian". Poe and Allan reached a temporary rapprochement after the death of Allan's wife, Frances, in 1829. However, Poe later failed as an officer cadet at West Point, declared his intention to become a writer, primarily of poems, and parted ways with Allan.

Literary fiction—also called serious fiction, high literature, artistic literature, or sometimes just literature, encompasses fiction that is more character-driven than plot-driven, examines the human condition, or is considered serious art by critics. These labels are typically used in contrast to genre fiction, which refers to books that fit into established categories of the book trade and place more value on entertainment and appealing to a mass audience. Literary fiction can also be called non-genre fiction and is often considered to have more artistic merit than popular genre fiction.

Some categories of literary fiction, such as historical fiction, magic realism, autobiographical novels, and encyclopedic novels, are frequently called genres without being considered genre fiction. Some authors are seen as writing literary equivalents or precursors to established genres while still maintaining the division between commercial and literary fiction. Examples include the literary romance of Jane Austen and the speculative fiction of Margaret Atwood. Some critics and genre authors have argued for even greater overlap between literary and commercial fiction, noting that major literary figures have used elements of popular genres—such as science fiction, crime fiction, and romance—to create works of literature. The slipstream genre is sometimes described as falling between the genre fiction and non-genre fiction.

Johannes Kepler (27 December 1571 – 15 November 1630) was a German astronomer, mathematician, astrologer, natural philosopher and writer on music. He is a key figure in the 17th-century Scientific Revolution, best known for his laws of planetary motion, and his books Astronomia nova, Harmonice Mundi, and Epitome Astronomiae Copernicanae. The variety and impact of his work made Kepler one of the founders and fathers of modern astronomy, the scientific method, natural science, and modern science. He has been described as the "father of science fiction" for his novel Somnium.

Kepler was a mathematics teacher at a seminary school in Graz, where he became an associate of Prince Hans Ulrich von Eggenberg. Later he became an assistant to the astronomer Tycho Brahe in Prague, and eventually the imperial mathematician to Emperor Rudolf II and his two successors Matthias and Ferdinand II. He also taught mathematics in Linz, and was an adviser to General Wallenstein.

In the book-trade, genre fiction, also known as formula fiction, or commercial fiction, encompasses fictional works written with the intent of fitting into a specific literary genre in order to appeal to readers and fans already familiar with that genre. These labels commonly imply that this type of fiction places more value on plot and entertainment than on character development, philosophical themes, or artistic depth. This distinguishes genre fiction from literary fiction.

The main genres are crime, fantasy, romance, science fiction and horror—as well as perhaps Western, inspirational and historical fiction.

A humanoid (/ˈhjuːmənɔɪd/; from English human and -oid "resembling") is a non-human entity with human form or characteristics. By the 20th century, the term came to describe fossils which were morphologically similar, but not identical, to those of the human skeleton.

Although this usage was common in the sciences for much of the 20th century, it is now considered rare. More generally, the term can refer to anything with distinctly human characteristics or adaptations, such as possessing opposable anterior forelimb-appendages (i.e. thumbs), visible spectrum-binocular vision (i.e. having two eyes), or biomechanic plantigrade-bipedalism (i.e. the ability to walk on heels and metatarsals in an upright position). Humanoids may also include human-animal hybrids (where each cell has partly human and partly animal genetic contents). Science fiction media frequently present sentient extraterrestrial lifeforms as humanoid as a byproduct of convergent evolution.

A superpower is a special or extraordinary ability far greater than what is considered normal, possessed by those of superhuman status. Superpowers are typically displayed in science fiction and fantasy media such as comic books, TV shows, video games, and film as the key attribute of a superhero. The concept originated in American comics and pulp fiction of the 1930s and 1940s, and has gradually worked its way into other genres and media.

Ansen Dibell was the pen name used by Nancy Ann Dibble (September 8, 1942 – March 7, 2006), an American science fiction author and poet, who also published books about fiction writing.

Atlas Shrugged is a 1957 novel by Ayn Rand. It is her longest novel, the fourth and final one published during her lifetime, and the one she considered her magnum opus in the realm of fiction writing. She described the theme of Atlas Shrugged as "the role of man's mind in existence" and it includes elements of science fiction, mystery, and romance. The book explores a number of philosophical themes from which Rand would subsequently develop Objectivism, including reason, property rights, individualism, libertarianism, and capitalism and depicts what Rand saw as the failures of governmental coercion. Of Rand's works of fiction, it contains her most extensive statement of her philosophical system.

The book depicts a dystopian United States in which heavy industry companies suffer under increasingly burdensome laws and regulations. Railroad executive Dagny Taggart and her lover, steel magnate Hank Rearden, struggle against "looters" who want to exploit their productivity. They discover that a mysterious figure called John Galt is persuading other business leaders to abandon their companies and disappear as a strike of productive individuals against the looters. The novel ends with the strikers planning to build a new capitalist society based on Galt's philosophy.

A romance or romantic novel is a genre fiction work focused on the relationship and romantic love between two people, often concluding with an emotionally satisfying or optimistic ending. Authors who have significantly contributed to the development of this genre include Samuel Richardson, Frances Burney, Maria Edgeworth, Jane Austen, Charlotte Brontë, Emily Brontë, and Anne Brontë.

Romance novels can encompass various subgenres, such as fantasy, contemporary, historical romance, paranormal fiction, sapphic, and science fiction. They may also contain tropes such as enemies to lovers, second chance, and forced proximity. While women have traditionally been considered the primary readers of romance novels, a 2017 study commissioned by the Romance Writers of America found that men accounted for 18% of romance book buyers.

Speculative fiction is an umbrella genre of fiction that encompasses all the subgenres that depart from realism, or strictly imitating everyday reality, instead presenting fantastical, supernatural, futuristic, or other highly imaginative realms or beings.

This catch-all genre includes, but is not limited to: fantasy, science fiction, science fantasy, superhero, paranormal and supernatural horror, alternate history, magical realism, slipstream, weird fiction, utopia and dystopia, apocalyptic and post-apocalyptic fiction. In other words, the genre presents individuals, events, or places beyond the ordinary real world.

Crime fiction, detective story, murder mystery, crime novel, mystery novel, and police novel are terms used to describe narratives or fiction that centre on criminal acts and especially on the investigation, either by an amateur or a professional detective, of a crime, often a murder. Most crime drama focuses on criminal investigation and does not feature the courtroom. Suspense and mystery are key elements that are nearly ubiquitous to the genre.

It is usually distinguished from mainstream fiction and other genres such as historical fiction and science fiction, but the boundaries are indistinct. Crime fiction has several subgenres, including detective fiction (such as the whodunit), courtroom drama, hard-boiled fiction, and legal thrillers.

Slipstream is a literary genre or category of speculative fiction that blends together science fiction, fantasy, and literary fiction, or otherwise does not remain within conventional boundaries of genre and narrative. It directly extends from the experimentation of the New Wave science fiction movement while also borrowing from fantasy, psychological fiction, philosophical fiction and other genres or styles of literature.

Historical examples of the genre were partially codified in Feeling Very Strange: The Slipstream Anthology; contemporary examples include Peaces by Helen Oyeyemi, The Dangers of Smoking in Bed by Mariana Enríquez, and The Butterfly Lampshade by Aimee Bender.

Manga (Japanese: 漫画; IPA: [maŋga] ) are comics or graphic novels originating from Japan. Most manga conform to a style developed in Japan in the late 19th century, and the form has a long history in earlier Japanese art. The term manga is used in Japan to refer to both comics and cartooning. Outside of Japan, the word is typically used to refer to comics originally published in Japan.

In Japan, people of all ages and walks of life read manga. The medium includes works in a broad range of genres: action, adventure, business and commerce, comedy, detective, drama, historical, horror, mystery, romance, science fiction and fantasy, erotica (hentai and ecchi), sports and games, and suspense, among others. Many manga are translated into other languages.

A disguise can be anything incognito which conceals one's identity or changes a person's physical appearance, including a wig, glasses, makeup, fake moustache, costume or other items. Camouflage is a type of disguise for people, animals and objects. Hats, glasses, changes in hair style or wigs, plastic surgery, and make-up are also used.

Disguises can be used by criminals, terrorists, secret agents and special forces operators seeking to avoid identification. A person working for an agency trying to get information might go "undercover" to get information without being recognised by the public; a celebrity may go "incognito" in order to avoid unwelcome press attention. Protests often feature people dressed in humorous costumes while political publicity stunts and pranks sometimes employ disguises and imposture. In comic books and films, disguises are often used by superheroes, and in science fiction they may be used by aliens. Dressing up in costumes is a Halloween tradition.

Longevity may refer to especially long-lived members of a population, whereas life expectancy is defined statistically as the average number of years remaining at a given age. For example, a population's life expectancy at birth is the same as the average age at death for all people born in the same year (in the case of cohorts).

Longevity studies may involve putative methods to extend life. Longevity has been a topic not only for the scientific community but also for writers of travel, science fiction, and utopian novels. The legendary fountain of youth appeared in the work of the Ancient Greek historian Herodotus.

Self-replication is any behavior of a dynamical system that yields construction of an identical or similar copy of itself. Biological cells, given suitable environments, reproduce by cell division. During cell division, DNA is replicated and can be transmitted to offspring during reproduction. Biological viruses can replicate, but only by commandeering the reproductive machinery of cells through a process of infection. Harmful prion proteins can replicate by converting normal proteins into rogue forms. Computer viruses reproduce using the hardware and software already present on computers. Self-replication in robotics has been an area of research and a subject of interest in science fiction. Any self-replicating mechanism which does not make a perfect copy (mutation) will experience genetic variation and will create variants of itself. These variants will be subject to natural selection, since some will be better at surviving in their current environment than others and will out-breed them.

Somnium (Latin for "The Dream") — full title: Somnium, seu opus posthumum De astronomia lunari — is a novel written in Latin in 1608 by Johannes Kepler. It was first published in 1634 by Kepler's son, Ludwig Kepler, several years after the death of his father. In the narrative, an Icelandic boy and his witch mother learn of an island named Levania (the Moon) from a daemon ("Levana" is the Hebrew word for the moon). Somnium presents a detailed imaginative description of how the Earth might look when viewed from the Moon, and is considered the first serious scientific treatise on lunar astronomy. Carl Sagan and Isaac Asimov have referred to it as one of the earliest works of science fiction.

Terraforming or terraformation ("Earth-shaping") is the hypothetical process of deliberately modifying the atmosphere, temperature, surface topography or ecology of a planet, moon, or other body to be similar to the environment of Earth, with the goal of making it habitable for humans.

The concept of terraforming developed from both science fiction and actual science. Carl Sagan, an astronomer, proposed the planetary engineering of Venus in 1961, which is considered one of the first accounts of the concept. The term was coined by Jack Williamson in a science-fiction short story ("Collision Orbit") published in 1942 in Astounding Science Fiction.