All articles starting with S
44,216 articles
SATB2
SATB2 (special AT-rich sequence-binding protein 2, KIAA1034) is a chromatin-organizing gene at 2q32-q33; mutations cause SATB2-associated syndrome (Glass syndrome), and the protein marks colorectal and osteoblastic tumors.
SATB2-associated syndrome
SATB2-associated syndrome (Glass syndrome, 2q33.1 microdeletion syndrome), a rare autosomal dominant neurodevelopmental disorder caused by SATB2 gene variants, marked by intellectual disability, absent or limited speech, palatal and dental anomalies, and behavioral issues.
Satchel
A satchel is a structured bag with a long shoulder strap, a front flap, and a buckle closure, used for books, mail, and as a fashion handbag.
Satchel Paige
Satchel Paige (Leroy Robert Paige, 1906-1982), American pitcher, Negro Leagues star, oldest MLB rookie at 42 with Cleveland in 1948, pitched in MLB at 59, first Negro Leagues Hall of Fame electee in 1971.
Satchidananda Panda
Satchidananda Panda is a chronobiologist and professor at the Salk Institute for Biological Studies since 2004, known for melanopsin light-sensing research and time-restricted eating studies, including the myCircadianClock app.
Satchith Paulose
Satchith Paulose (സത്ചിത് പൗലോസ്) is an Indian cinematographer whose feature debut was the Yash Raj Films action film Pathaan in 2023, later followed by Fighter.
SATCHVAI Band
SATCHVAI Band, also SatchVai, is a rock band formed in 2024 by guitarists Joe Satriani and Steve Vai with Kenny Aronoff, Marco Mendoza, and Pete Thorn; debut album The Sea of Emotion (earMUSIC, 2026) and Surfing with the Hydra tours.
Satcom (satellite series)
Satcom, short for RCA SATellite COMmunications, was a family of geostationary communications satellites launched by RCA Americom from 1975 that distributed cable and broadcast television across the United States.
Satcom 1
Satcom 1 was an American geostationary communications satellite launched by RCA on December 12, 1975, which became the main distribution platform for early American cable television.
Satelight (株式会社サテライト)
Satelight (株式会社サテライト, SATELIGHT Inc.) is a Japanese anime studio founded in Sapporo in 1995, known for fully digital production, Macross Frontier, Aquarion, and Symphogear; distinct from same-named IT and satellite-image firms.
Sateliot
Sateliot is a Barcelona-based satellite telecommunications startup founded in 2018 that provides narrowband IoT connectivity from a low-Earth-orbit nanosatellite constellation built on 5G standards, with six satellites in orbit as of 2025.
Satellite
A satellite is a body that orbits another in space, either natural like the Moon or artificial; Sputnik 1, launched in 1957, was the first artificial satellite.
Satellite (biology)
Satellite (biology): subviral agents, aka satellite viruses or satellite nucleic acids, that lack replication genes and depend on a helper virus; examples include hepatitis D virus, phage P4, and tobacco necrosis satellite virus.
Satellite altimetry
Satellite altimetry is a remote-sensing technique that measures sea surface height, ice, and inland waters by timing radar or laser pulses, supporting sea level monitoring since 1973.
Satellite Bio
Satellite Bio, formally Satellite Biosciences, Inc., is an American biotechnology company in Newton, Massachusetts, founded by Sangeeta Bhatia and Christopher Chen, developing implantable tissue therapeutics that restore organ function.
Satellite bus
A satellite bus is the underlying structure and support subsystems of a satellite, carrying the payload, the antennas, sensors, or transponders that perform the mission.
Satellite Catalog Number
The Satellite Catalog Number, also called the NORAD ID, is a sequential unique identifier assigned by US Space Command to every artificial object it tracks in Earth orbit.
Satellite Chemical
Satellite Chemical (卫星化学股份有限公司), formally Zhejiang Satellite Petrochemical, is a Shenzhen-listed Chinese chemical producer headquartered in Jiaxing, Zhejiang, operating China's first imported-ethane cracker and largest acrylic acid output.
Satellite clock estimation
Satellite clock estimation determines GNSS satellite clock offsets and drifts from code and carrier-phase observations at ground stations, underpinning precise point positioning and real-time navigation.
Satellite Cluster Gas Field
The Satellite Cluster gas field is a deepwater natural gas field in India's Krishna-Godavari Basin, operated by Reliance Industries with bp, producing since April 2021.
Satellite constellation
A satellite constellation is a group of artificial satellites working together across multiple orbits, providing coverage, revisit rates, and resilience for navigation, communications, and Earth observation missions.
Satellite Dirac cones in graphene/h-BN superlattices
Satellite Dirac cones, also called superlattice Dirac cones, are extra Dirac points cloned from graphene's cone by the moiré potential when graphene is aligned on hexagonal boron nitride.
Satellite dish
A satellite dish, also known as a satellite antenna, is a parabolic reflector that collects radio signals from communications satellites, used for home television since 1980.
Satellite flare
A satellite flare is a brief brightening of a satellite when a flat surface mirrors sunlight directly at an observer, best known from the Iridium flares.
Satellite galaxy
A satellite galaxy is a smaller galaxy gravitationally bound to a more massive host, orbiting it over billions of years; the Milky Way hosts dozens, including the Large Magellanic Cloud.
Satellite geodesy
Satellite geodesy is the branch of geodesy that uses tracked artificial satellites to determine positions on Earth, its gravity field, and its rotation, growing rapidly since 1956.
Satellite imagery
Satellite imagery is pictures of Earth built from radiation measured by sensors on orbiting spacecraft, with civilian imagery beginning with TIROS-1 in 1960 and including free Landsat archives, commercial sub-meter pictures, and radar satellites.
Satellite Internet access
Satellite Internet access, also called satellite broadband, delivers Internet through communications satellites where terrestrial networks are impractical, from geostationary orbit since Early Bird in 1965 and increasingly via low Earth orbit constellations such as Starlink.
Satellite laser ranging
Satellite laser ranging (SLR) is a geodetic technique that measures round-trip laser pulse times to satellites carrying retroreflectors, deriving orbits, station positions, and Earth's gravity field.
Satellite navigation
Satellite navigation, or sat nav, determines position, velocity, and time on Earth by timing radio signals from satellite constellations, the four global systems being GPS, GLONASS, Galileo, and BeiDou.