The Big Bang is a physical theory that describes how the universe expanded from an initial state of high density and temperature. It was first proposed as a physical theory in 1931 by Roman Catholic priest and physicist Georges Lemaître when he suggested the universe emerged from a "primeval atom". Various cosmological models of the Big Bang explain the evolution of the observable universe from the earliest known periods through its subsequent large-scale form. These models offer a comprehensive explanation for a broad range of observed phenomena, including the abundance of light elements, the cosmic microwave background (CMB) radiation, and large-scale structure. The uniformity of the universe, known as the flatness problem, is explained through cosmic inflation: a sudden and very rapid expansion of space during the earliest moments. Physics lacks a widely accepted theory of quantum gravity that can model the earliest conditions of the Big Bang.
In astronomy, dark matter is a hypothetical form of matter that appears not to interact with light or the electromagnetic field. Dark matter is implied by gravitational effects which cannot be explained by general relativity unless more matter is present than can be seen. Such effects occur in the context of formation and evolution of galaxies, gravitational lensing, the observable universe's current structure, mass position in galactic collisions, the motion of galaxies within galaxy clusters, and cosmic microwave background anisotropies.
The Dark Side of the Moon is the eighth studio album by the English rock band Pink Floyd, released on 1 March 1973 by Harvest Records in the UK and Capitol Records in the US. Developed during live performances before recording began, it was conceived as a concept album that would focus on the pressures faced by the band during their arduous lifestyle, and also deal with the mental health problems of the former band member Syd Barrett, who departed the group in 1968. New material was recorded in two sessions in 1972 and 1973 at EMI Studios in London.
Darth Vader is a fictional character in the Star Wars franchise created by George Lucas. He was first introduced in the original film trilogy as one of the leaders of the Galactic Empire. The prequel trilogy chronicles his transformation from the Jedi Knight Anakin Skywalker into the Sith Lord Darth Vader. His metamorphosis begins when he is lured to the dark side of the Force by Chancellor Palpatine, who later becomes Emperor. After a lightsaber battle with his former mentor Obi-Wan Kenobi, Vader is severely injured and is transformed into a cyborg. He serves Palpatine for over two decades, hunting down the remaining Jedi and attempting to crush the Rebel Alliance. When Palpatine tries to kill Vader's son, Luke Skywalker, the Sith Lord turns against his master and destroys him. Vader is the husband of Padmé Amidala, the father of Luke and his twin sister Leia Organa, and the grandfather of Ben Solo.
The Dark Ages is a term for the Early Middle Ages, or occasionally the entire Middle Ages, in Western Europe after the fall of the Western Roman Empire, which characterises it as marked by economic, intellectual, and cultural decline.
Dark Horse Comics is an American comic book, graphic novel, and manga publisher founded in Milwaukie, Oregon by Mike Richardson in 1986. The company was created using funds earned from Richardson's chain of Portland, Oregon, comic book shops known as Pegasus Books and founded in 1980.
The Dark Tower is a series of eight novels, one novella, and a children's book written by American author Stephen King. Incorporating themes from multiple genres, including dark fantasy, science fantasy, horror, and Western, it describes a "gunslinger" and his quest toward a tower, the nature of which is both physical and metaphorical. The series, and its use of the Dark Tower, expands upon Stephen King's multiverse and in doing so, links together many of his other novels.
Dark fantasy is a subgenre of fantasy literary, artistic, and cinematic works that incorporate disturbing and frightening themes. It often combines fantasy with elements of horror, possessing a dark and gloomy tone or a gothic atmosphere of dread.
The Dark Knight is a 2008 superhero film directed by Christopher Nolan, from a screenplay co-written with his brother Jonathan. Based on the DC Comics superhero Batman, it is the sequel to Batman Begins (2005), and the second installment in The Dark Knight trilogy. The plot follows the vigilante Batman, police lieutenant James Gordon, and district attorney Harvey Dent, who form an alliance to dismantle organized crime in Gotham City. Their efforts are derailed by the Joker, an anarchistic mastermind who seeks to test how far Batman will go to save the city from chaos. The ensemble cast includes Christian Bale, Michael Caine, Heath Ledger, Gary Oldman, Aaron Eckhart, Maggie Gyllenhaal, and Morgan Freeman.
The Batman franchise, based on the fictional superhero Batman who appears in American comic books published by DC Comics, has seen the release of various films. Created by Bob Kane and Bill Finger, the character first starred in two serial films in the 1940s: Batman and Batman and Robin. The character also appeared in the 1966 film Batman, which was a feature film adaptation of the 1960s Batman TV series starring Adam West and Burt Ward, who also starred in the film. Toward the end of the 1980s, the Warner Bros. studio began producing a series of feature films starring Batman, beginning with the 1989 film Batman, directed by Tim Burton and starring Michael Keaton. Burton and Keaton returned for the 1992 sequel Batman Returns, and in 1995, Joel Schumacher directed Batman Forever with Val Kilmer as Batman. Schumacher also directed the 1997 sequel Batman & Robin, which starred George Clooney. Batman & Robin was poorly received by both critics and fans, leading to the cancellation of Batman Unchained.
The Sith are the main antagonists in the fictional universe of the Star Wars franchise. They are the antithesis and ancient enemies of the Jedi. The Sith Order is depicted as an ancient cult of warriors who draw strength from the dark side of the Force and use it to seize power by any means necessary, including terrorism and mass murder; their ultimate goals are to destroy the Jedi and rule the galaxy. The various antagonistic factions in the franchise, namely the Confederacy of Independent Systems, the First Galactic Empire, the Imperial Remnant, and the First Order, all originated with the Sith. Sith, known individually as Sith Lords, are, by nature, ruthless. At any point a single individual assumes absolute authority amongst their kind and is granted the honorific Dark Lord of the Sith. Sith culture is based on perpetual treachery and betrayal. The fate of Sith Lords is, typically, to be murdered and replaced by their own apprentices. Sith teach their apprentices to revere the dark side of the Force, to give full reign to aggressive emotions such as rage and hatred, and to believe that others are expendable in the pursuit of power, thus making the Lords' demise inevitable.
In physical cosmology and astronomy, dark energy is an unknown form of energy that affects the universe on the largest scales. Its primary effect is to drive the accelerating expansion of the universe. Assuming that the lambda-CDM model of cosmology is correct, dark energy is the dominant component of the universe, contributing 68% of the total energy in the present-day observable universe while dark matter and ordinary (baryonic) matter contribute 26% and 5%, respectively, and other components such as neutrinos and photons are nearly negligible. Dark energy's density is very low: 7×10−30 g/cm3, much less than the density of ordinary matter or dark matter within galaxies. However, it dominates the universe's mass–energy content because it is uniform across space.
The Dark Knight Rises is a 2012 superhero film directed by Christopher Nolan, who co-wrote the screenplay with his brother Jonathan Nolan, and the story with David S. Goyer. Based on the DC Comics character Batman, it is the final installment in Nolan's The Dark Knight trilogy, and the sequel to The Dark Knight (2008). The film stars Christian Bale as Bruce Wayne / Batman, alongside Anne Hathaway, Gary Oldman, Tom Hardy, Morgan Freeman, Marion Cotillard, Joseph Gordon-Levitt, and Michael Caine. Eight years after the events of The Dark Knight, the terrorist Bane forces Bruce Wayne to resume his role as Batman and save Gotham City from nuclear destruction.
Zero Dark Thirty is a 2012 American historical drama thriller film directed and produced by Kathryn Bigelow, and written and produced by Mark Boal. The film dramatizes the nearly decade-long international manhunt for Osama bin Laden, leader of the terrorist network Al-Qaeda, after the September 11 attacks. This search leads to the discovery of his compound in Pakistan and the U.S. military raid where bin Laden was killed on May 2, 2011.
The dark web is the World Wide Web content that exists on darknets: overlay networks that use the Internet but require specific software, configurations, or authorization to access. Through the dark web, private computer networks can communicate and conduct business anonymously without divulging identifying information, such as a user's location. The dark web forms a small part of the deep web, the part of the web not indexed by web search engines, although sometimes the term deep web is mistakenly used to refer specifically to the dark web.
Stranger Things is an American science fiction horror drama television series created by the Duffer Brothers for Netflix. Produced by Monkey Massacre Productions and 21 Laps Entertainment, the first season was released on Netflix on July 15, 2016. The second and third seasons followed in October 2017 and July 2019 respectively, and the fourth season was released in two parts in May and July 2022. The fifth and final season of Stranger Things is expected to be released in 2025.
Dark Souls is a dark fantasy action role-playing game series developed by FromSoftware and published by Bandai Namco Entertainment. It began with the release of Dark Souls (2011) and has seen two sequels, Dark Souls II (2014) and Dark Souls III (2016). The series was created by Hidetaka Miyazaki and has received critical acclaim, with its high level of difficulty being among its most discussed aspects, while the first Dark Souls is often cited as one of the greatest games of all time. By 2023, the series had shipped over 35 million copies outside of Japan. Other FromSoftware games, including Demon's Souls, Bloodborne, Sekiro: Shadows Die Twice, and Elden Ring, share several related concepts and led to the creation of the Soulslike subgenre.
Dark is a German science fiction thriller television series co-created by the couple Baran bo Odar and Jantje Friese. It ran for three seasons from 2017 to 2020. The story follows the dysfunctional characters from the fictional town of Winden in Germany, as they pursue the truth in the aftermath of a child's disappearance. They follow connections between four estranged families to unravel a sinister time travel conspiracy that spans several generations. The series explores the existential implications of time and its effect on human nature and life. It features an ensemble cast led by Louis Hofmann.
Terminator: Dark Fate is a 2019 American science fiction action film. It is the sixth installment in the Terminator franchise and serves as a direct sequel to both The Terminator (1984) and Terminator 2: Judgment Day (1991), ignoring the events depicted in Rise of the Machines (2003), Terminator Salvation (2009), and Terminator Genisys (2015). The film stars Linda Hamilton and Arnold Schwarzenegger reprising their characters Sarah Connor and the T-800 Terminator, respectively, and introduces Mackenzie Davis, Natalia Reyes, Gabriel Luna and Diego Boneta as new characters. Dark Fate is directed by Tim Miller and written by David S. Goyer, Justin Rhodes, and Billy Ray, based on a story by James Cameron, Charles H. Eglee, Josh Friedman, Goyer, and Rhodes.
Dark Matter is an American science fiction television series created by Blake Crouch, based on his 2016 novel of the same name. It premiered on Apple TV+ on May 8, 2024, with two episodes.
