All articles starting with D
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Dark fermentation
Dark fermentation is an anaerobic, light-independent process in which microorganisms degrade organic substrates and release biohydrogen, with organic acids, alcohols, and CO2 as byproducts; it remains at lab and pilot scale.
Dark figure of crime
Dark figure of crime: unrecorded criminal occurrences absent from police statistics or crime surveys, named by Biderman and Reiss (1967); measured via victimization surveys like the NCVS and CSEW, varying by offense type and area.
Dark Figure of Crime (암수살인) (2018 film)
Dark Figure of Crime (암수살인) is a 2018 South Korean crime thriller directed by Kim Tae-gyun, starring Kim Yun-seok and Ju Ji-hoon, based on a real case of a prisoner confessing seven unreported murders; released by Showbox October 3, 2018.
Dark flow
Dark flow is a disputed claim that galaxy clusters move together in a single direction, announced in 2008 from WMAP data, but Planck analyses found no detection.
Dark fluid
Dark fluid is a hypothetical single cosmic component acting as dark matter at high density and dark energy at low density, replacing ΛCDM's two dark sectors.
Dark forest hypothesis
The dark forest hypothesis, also known as the dark forest theory, is a proposed solution to the Fermi paradox, named after Liu Cixin's 2008 novel The Dark Forest.
Dark Funeral
Dark Funeral: Swedish black metal band formed 1993 in Stockholm by Lord Ahriman and Blackmoon; seven albums from The Secrets of the Black Arts (1996) to We Are the Apocalypse (2022), Satanist themes, clean production, Century Media label.
Dark Habits
Dark Habits (Entre tinieblas) is Pedro Almodóvar's 1983 Spanish black comedy, his third feature, about singer Yolanda Bell hiding in a Madrid convent of vice-ridden nuns; produced by Tesauro, shown at Venice 1983.
Dark Harvest (2023 film)
Dark Harvest (2023) is a David Slade horror film adapted by Michael Gilio from Norman Partridge's 2006 novella, about 1963 teen boys hunting Sawtooth Jack; MGM released it October 11, 2023.
Dark Heart of the Night
Dark Heart of the Night (French: L'Intérieur de la nuit) is a 2005 debut novel by Cameroonian-French writer Léonora Miano, set in a fictional central African country.
Dark Hearts
Dark Hearts (Cœurs noirs) is a French action-war series created by Duong Dang-Thaï and Corinne Garfin about a special forces commando in 2016 Iraq; two seasons on Prime Video and France 2, distinct from other works of the same name.
Dark horse
Dark horse: idiom for a previously little-known person who emerges to prominence in a competition. From horse racing slang; earliest use in Disraeli's The Young Duke (1831); first political use for James Polk in 1844.
Dark Horse (2026 film)
Dark Horse (2026 film), Brazilian title O Azarão, is a Cyrus Nowrasteh biopic of Jair Bolsonaro starring Jim Caviezel. Its R$134 million financing became a criminal investigation, and Europa Filmes left it without a Brazilian release date.
Dark Horse (George Harrison album)
Dark Horse (1974), George Harrison's third solo album, released December 1974 on his new Dark Horse Records label, recorded amid laryngitis that made his voice hoarse; top five in America, weak in the UK.
Dark Horse (Katy Perry song)
"Dark Horse" is a 2013 Katy Perry single featuring Juicy J from Prism, a trap-pop hit that reached No. 1 on the Billboard Hot 100 and became the subject of the copyright case Gray v. Perry.
Dark Horse (Nickelback album)
Dark Horse (2008) is Nickelback's sixth studio album on Roadrunner, produced by Mutt Lange with Joey Moi, 11 tracks, 43:33, triple platinum, 2009 Juno Album of the Year winner, Metascore 49.
Dark Horse Comics
Dark Horse Comics, founded 1986 by Mike Richardson in Milwaukie, Oregon, is an American comic publisher known for Hellboy, Sin City, licensed Star Wars and manga lines, now owned by Embracer Group.
Dark Horse Records
Dark Horse Records is the record label George Harrison founded in 1974, first distributed by A&M then Warner Bros., carrying his six 1976-1992 solo albums and revived in 2020 by Dhani Harrison with BMG.
Dark Lane Demo Tapes
Dark Lane Demo Tapes is Canadian rapper Drake's sixth mixtape, released May 1, 2020 on OVO Sound/Republic. A 14-track, 49:55 compilation of leaks, one-off singles and demos, it debuted at number 2 on the Billboard 200 and number 1 in the UK and Canada.
Dark matter
Dark matter is invisible matter inferred only from its gravitational effects, outweighing ordinary matter about five to one; hypothesized by Fritz Zwicky in 1933, it remains unidentified.
Dark Matter (2024 TV series)
Dark Matter (2024 TV series) is an Apple TV sci-fi thriller adapted by Blake Crouch from his 2016 novel, starring Joel Edgerton as physicist Jason Dessen, abducted into an alternate life; season 1 premiered May 8, 2024 (9 episodes), season 2 (10 episodes) on August 28, 2026.
Dark Matter (Crouch novel)
Dark Matter (2016) is Blake Crouch's science fiction thriller about physicist Jason Dessen, abducted into an alternate life via the many-worlds interpretation; a NYT bestseller adapted by Crouch himself into Apple TV+'s series with Joel Edgerton and Jennifer Connelly.
Dark Matter (Pearl Jam album)
Dark Matter is the twelfth studio album by American rock band Pearl Jam, released in 2024 and produced by Andrew Watt, largely written and recorded in about three weeks.
Dark Matter (prose anthologies)
Dark Matter is a series of speculative fiction anthologies edited by Sheree R. Thomas collecting science fiction, fantasy, and horror by writers of African descent; the 2000 first volume won the World Fantasy Award and a sequel, Reading the Bones, followed in 2004.
Dark matter annihilation
Dark matter annihilation is a hypothetical process in which dark matter particles convert their mass into gamma rays, positrons, antiprotons, and neutrinos, the basis of indirect detection.
Dark matter halo
A dark matter halo, also called a dark halo, is a roughly spherical envelope of dark matter that surrounds galaxies and galaxy clusters and contains most of their mass.
Dark matter search with atomic clocks
Dark matter search with atomic clocks is a laboratory approach that looks for dark matter through tiny changes it would cause in the tick rates of precision atomic clocks.
Dark matter spike
A dark matter spike is a steep power-law overdensity of dark matter around a black hole, boosting annihilation signals and probing the dark matter particle's identity.
Dark matter substructure
Dark matter substructure is the population of small dark matter clumps, called subhalos, within a galaxy's larger dark matter halo, tested via lensing, stellar streams, and gamma rays.
Dark Matter World Tour
The Dark Matter World Tour was a 2024–2025 concert tour by the American rock band Pearl Jam, supporting their twelfth studio album, Dark Matter, across 48 shows.