All articles starting with S
44,216 articles
SP100
SP100 (nuclear autoantigen Sp-100, speckled 100 kDa) is a human chromosome 2q37.1 gene encoding a major PML nuclear body component, SUMOylated, interferon-inducible, antiviral against HSV-1, and a PBC autoantigen.
sp2 hybridization
sp² hybridization mixes one s orbital and two p orbitals on an atom, producing three equivalent orbitals arranged 120° apart in a plane, with one p orbital left perpendicular.
SP24
SP24 (pfam16504, IPR032441) is a family of putative virion membrane proteins of plant and insect positive-strand RNA viruses such as negeviruses and chronic bee paralysis virus, with four transmembrane regions; also the name of an SpCas9 inhibitor.
sp3 hybridization
sp3 hybridization is the mixing of one s and three p orbitals into four equivalent tetrahedral orbitals oriented at 109.5°, proposed independently by Pauling and Slater in 1931.
Sp5der
Sp5der (SP5DER, formerly Spider Worldwide) is an American streetwear brand founded in 2019 in Atlanta by rapper Young Thug, owned via King Spider LLC, known for spider-web graphics, rhinestone hoodies, limited drops, and its 2021 SP5DER trademark.
Spa
Spa: a resort built around a mineral or thermal spring used for bathing, drinking cures, and health treatments; covers Roman thermae, Europe's great spa towns, and balneotherapy evidence.
Spa (2026 film)
Spa is a 2026 Indian Malayalam-language adult comedy-drama film written and directed by Abrid Shine, set in an urban massage therapy center called La Paradise.
Spa town
Spa town: a settlement built around a natural mineral or thermal spring, organized for bathing, drinking cures, leisure and sociability; flourished in Europe circa 1700 to the 1930s, exemplified by the eleven UNESCO Great Spa Towns of Europe.
Spa Weekend
Spa Weekend is a 2026 American comedy film directed by Jon Lucas and Scott Moore, starring Leslie Mann, Isla Fisher, Michelle Buteau, and Anna Faris.
SpaA-like, prealbumin fold domain subgroup 1
SpaA-like, prealbumin fold domain subgroup 1 (InterPro IPR041033; Pfam PF17802 SpaA) is a bacterial prealbumin-fold Ig-like domain found in sortase-assembled pilins and surface adhesins, often isopeptide-bonded.
Spaatz Island
Spaatz Island, also rendered Спаатс (Russian) and Spaatzøya (Norwegian), is an ice-covered Antarctic island at 73°12'S 75°00'W on the English Coast, named for General Carl Spaatz and forming the eastern boundary of Stange Ice Shelf.
Space (English band)
Space are an English alternative rock band formed in Liverpool in 1993, known for "Female of the Species" and the albums Spiders (1996) and Tin Planet (1998); distinct from the French disco band Space.
Space (group)
Space is a French space-disco and electronic group formed in 1977 by Didier Marouani, whose instrumental hit "Magic Fly" reached number 2 in the UK.
Space (punctuation)
A space is the blank character or gap inserted between words and around punctuation marks to separate them visually, with Unicode defining variants such as the non-breaking, thin, and hair spaces.
Space Ace
Space Ace (1983–84) is a Don Bluth/Cinematronics laserdisc arcade game, the follow-up to Dragon's Lair, with Energize Dexter/Ace transformation, branching scenes, three difficulty levels, and later Digital Leisure, Blu-ray, and Steam re-releases.
Space adaptation syndrome
Space adaptation syndrome, also called space sickness or space motion sickness, causes nausea and disorientation in up to 73% of space travelers during the first days of spaceflight.
Space Adventure Cobra
Space Adventure Cobra (SPACE ADVENTURE コブラ) is a 1982 Japanese anime film by Osamu Dezaki adapting Buichi Terasawa's Cobra manga, following space pirate Cobra, his psychogun, the Royal sisters, and Crystal Bowie.
Space Age
The Space Age is the historical period opened by the Soviet Union's launch of Sputnik 1, the first artificial satellite, on October 4, 1957, extending to today.
Space Alliance
The Space Alliance is a strategic partnership founded in 2005 between Leonardo and Thales, combining their joint ventures Telespazio and Thales Alenia Space as one of Europe's two satellite primes.
Space Analog for the Moon and Mars
Space Analog for the Moon and Mars (SAM) is a sealed, pressurized habitat at the University of Arizona's Biosphere 2 in Oracle, testing bioregenerative life support for lunar and Mars missions.
Space animal hypothesis
The space animal hypothesis proposes that some UFOs are living organisms native to Earth's atmosphere or space rather than spacecraft, first argued by John Philip Bessor in 1947.
Space Babies
"Space Babies" is the 2024 Doctor Who Season 1 opener, also called the first episode of Series 14, written by Russell T Davies and directed by Julie Anne Robinson, in which the Doctor and Ruby Sunday visit Babystation Beta, a baby farm run by talking babies menaced by the Bogeyman.
Space bar
The space bar, or space key, is the longest key on a computer keyboard, typically 6.25U wide on ANSI boards, entering a space character and carrying shortcuts.
Space Battleship Yamato (1974 film)
Space Battleship Yamato (宇宙戦艦ヤマト) is the 1974 Japanese animated space opera series, 26 episodes on Yomiuri TV, re-edited into the hit 1977 Toei compilation film; created by Yoshinobu Nishizaki with Leiji Matsumoto's design work.
Space Battleship Yamato (宇宙戦艦ヤマト)
Space Battleship Yamato (宇宙戦艦ヤマト) is a 1974 Japanese SF anime (26 episodes, Yomiuri TV) whose 1977 film made anime a social phenomenon for adults; remade as 2199, 2202, 2205, and REBEL3199, with a new Anno-directed film announced in 2026.
Space Battleship Yamato: The New Voyage
Space Battleship Yamato: The New Voyage (Uchū Senkan Yamato: Aratanaru Tabidachi) is a 1979 Fuji TV animated telefeature, the third Yamato movie, in which the Yamato crew and Desslar defend Iscandar from the Dark Nebula Empire; remade as Yamato 2205 (2021–2022).
Space blanket
A space blanket, also called an emergency or Mylar blanket, is a thin aluminized plastic sheet that reflects body heat; NASA developed it in 1964 for spacecraft insulation.
Space Cadet (2024 film)
Space Cadet (2024) is an American Prime Video comedy directed by Liz W. Garcia, starring Emma Roberts as Florida bartender Rex Simpson, who enters NASA astronaut training via a doctored application; 110 minutes, PG-13, released July 4, 2024.
Space capsule
A space capsule is a blunt, compact spacecraft in which crews live and work, returning to Earth through a heat shield and splashing down or landing under parachutes.
Space charge
Space charge is a net electric charge distributed through a volume of material or free space rather than on a surface, occurring in dielectrics, semiconductor depletion regions, vacuum tubes, and plasmas.