// Workers AI · dad joke modeWhat did STS say to the train? "You're on the right track, but I'm a Space Transportation System.

STS, sts, Sts, or STs may refer to:

Medicine

Secondary traumatic stress, a condition which leads to a diminished ability to empathize
Sequence-tagged site, a gene-reference in genomics
Soft-tissue sarcoma
Staurosporine, an antibiotic
STS (gene), which codes for steroid sulfatase
Superior temporal sulcus
Sinus tarsi syndrome, a foot condition

Cadillac STS, a luxury car
NASA Space Transportation System, the system in which the NASA shuttle is part of and only surviving component of; starting as a 1969 NASA proposal system for reusable space vehicles
- NASA Space Shuttle program, the shuttle program itself, whose mission were referred to with STS-numbering
Sail training ship, a ship prefix
Satellite Transit System, now called the SEA Underground, airport transit in Seattle-Tacoma International Airport
Ship-to-ship transfer, between seagoing ships
Société de transport de Sherbrooke, a public bus system in Sherbrooke, Quebec, Canada
Société de transport du Saguenay, a public bus system in Saguenay, Quebec, Canada
STS Group (Dubai), a transportation company for private schools
Sonar Technician Submarine, a US Navy rating
STS, the IATA airport code for Charles M. Schulz - Sonoma County Airport
STS, the National Rail code for Saltash railway station, Cornwall, UK

Scanning tunneling spectroscopy
Science and technology studies, also known as science, technology, and society
Sociotechnical system
Space Tourism Society
Special treatment steel, used by the US Navy c.1910
Speeter–Anthony tryptamine synthesis, a synthetic route used to synthesize tryptamines
Static transfer switch, a semiconductor switch
STS 5 an Australopithecus specimen
Suomenkielisten teknikkojen seura, now incorporated into Academic Engineers and Architects in Finland TEK

HTTP Strict Transport Security
Security token service, a web service
Set Transmit State, hex 93 in the C1 set of control codes
Spring Tool Suite, IDE for Spring Framework
Station-to-Station protocol, a cryptographic key agreement scheme
Synergy Teleconferencing System, a PC-based chat server
Serviciul de Telecomunicații Speciale, the Romanian special telecommunication service
STS Relay, US speech to speech relay service for people with a speech disability
STS (TV channel), Russia
Synchronous transport signal, in synchronous optical networking
Saga Television Station, a television station in Saga Prefecture, Japan

Scottish Tartans Society, a defunct Scottish society
Sisu Terminal Systems, a former terminal tractor producer
Society of the Holy Trinity (Societas Trinitatis Sanctae – STS), Lutheran ministerium
Suomen Työväen Säästöpankki, a defunct Finnish commercial bank
Hitachi Rail STS, formerly known as Ansaldo STS, a company specializing in railway signalling and control systems

Saints, the plural of Saint, for example: Sts. Peter and Paul
Short-term business statistics
Strathcona-Tweedsmuir School, Alberta, Canada
Susquehannock Trail System, Pennsylvania, US
Science Talent Search, see Regeneron Science Talent Search, formerly Westinghouse Science Talent Search, Intel Science Talent Search
Special Tactics Squadrons, United States Air Force units