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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 Coast
The Space Coast is the central Atlantic coast of Florida around Brevard County, home to NASA's Kennedy Space Center and Cape Canaveral Space Force Station.
Space Cowboys
Space Cowboys is a 2000 American adventure drama directed by and starring Clint Eastwood, with Tommy Lee Jones, Donald Sutherland, and James Garner as aging engineers sent to repair a satellite.
Space debris
Space debris, also known as space junk, is any non-functional artificial object in Earth orbit, created by over 6,000 launches since the space age began.
Space Development Agency
The Space Development Agency (SDA) is a U.S. Space Force organization, established in 2019, that develops the Proliferated Warfighter Space Architecture, a planned constellation of small satellites in low Earth orbit.
Space disposal
Space disposal is a proposed method of launching radioactive waste beyond the biosphere, studied by NASA in the 1970s but abandoned over cost and launch risk.
Space diving
Space diving is the act of jumping from a vehicle or balloon at very high altitude and landing by parachute, most famously from stratospheric balloons.
Space Dynamics Laboratory
Space Dynamics Laboratory is a nonprofit University Affiliated Research Center owned by Utah State University in North Logan, Utah, building sensors and small satellites for defense and NASA programs.
Space elevator
A space elevator, also called an orbital tower, is a proposed transportation system in which a tether anchored to Earth's equator extends past geostationary orbit so climbers can reach orbit without rockets.
Space exploration
Space exploration, also called outer space or extraterrestrial exploration, investigates space beyond Earth's atmosphere using crewed and robotic spacecraft, beginning with the Soviet Union's Sputnik 1 launch in 1957.
Space Exploration Vehicle
The Space Exploration Vehicle (SEV), formerly the Lunar Electric Rover, is a NASA concept for a pressurized rover letting astronauts live and work on the Moon or Mars.
Space food
Space food is food specially developed, processed, and packaged for astronauts during spaceflight, where it must stay safe and nutritious without refrigeration, conventional cooking, or gravity to control crumbs and liquids.
Space frame
A space frame, also known as an octet truss, is a three-dimensional structural system of triangulated members that spans large column-free roofs for stadiums, hangars, and exhibition halls.
Space Infrastructure Servicing
Space infrastructure servicing is the practice of refueling, repairing, upgrading, relocating, or removing spacecraft in orbit, using astronauts or robotic servicer spacecraft like Northrop Grumman's MEV-1.
Space launch market competition
Space launch market competition is the contest among launch providers to deliver payloads to orbit on price and reliability, with SpaceX dominating at 83 percent of spacecraft launched in 2024.
Space Launch System
The Space Launch System (SLS) is NASA's expendable super heavy-lift rocket for Artemis missions to the Moon, first flown uncrewed in November 2022 and carrying four astronauts around the Moon on Artemis II in April 2026.
Space Link Extension
Space Link Extension (SLE) is a set of CCSDS data-transfer standards that let a mission control center send commands to and receive telemetry from spacecraft via other agencies' ground stations.
Space mapping
Space mapping is an engineering optimization technique linking a fast approximate coarse model with an accurate expensive fine model, developed for electromagnetic design, typically converging in a handful of fine-model evaluations.
Space medicine
Space medicine is the field of comprehensive health care for astronauts, covering crew selection, in-flight medical care, and countermeasures against bone loss, vision changes, and radiation during spaceflight.
Space Mirror Memorial
The Space Mirror Memorial, also known as the Astronaut Memorial, is the United States' national memorial to fallen astronauts at the Kennedy Space Center Visitor Complex in Florida.
Space modelling competition (S classes)
Space modeling competition (S classes) is FAI model rocketry competition scored on altitude, duration, and scale, with classes from S1 upward and a first world championship in 1972.
Space Needle
The Space Needle is a 605-foot observation tower in Seattle, Washington, built for the 1962 World's Fair and the tallest structure west of the Mississippi River at completion.
Space planning
Space planning is the process of arranging rooms, functions, furniture, and circulation within a building so the layout supports intended use, producing floor plan options.
Space probe
A space probe, also called an interplanetary probe, is an unmanned spacecraft sent from Earth to explore celestial bodies by flying past, orbiting, or landing on them.
Space Race
The Space Race was the Cold War competition between the United States and the Soviet Union in spaceflight, from the 1957 Sputnik launch to the 1969 Moon landing.
Space Reactor‑1 Freedom
Space Reactor‑1 Freedom (SR‑1 Freedom) is a NASA mission, announced in March 2026, to fly the first fission reactor-powered spacecraft beyond Earth orbit toward Mars, carrying three helicopters.
Space Rider
Space Rider is an uncrewed reusable spaceplane developed by the European Space Agency, planned to fly payloads to low Earth orbit and land them back on a runway, with a first launch in 2028.
Space shift keying
Space shift keying (SSK) is a MIMO digital modulation scheme that encodes data bits in the index of one activated transmit antenna, needing a single RF chain.
Space Shuttle
The Space Shuttle was NASA's reusable human spaceflight system, approved by President Nixon in 1972, whose five orbiters flew 135 missions from 1981 to 2011 before retirement.
Space Shuttle abort modes
Space Shuttle abort modes were pre-planned procedures for ending a mission early during launch or ascent, including four intact aborts for safe runway landings and contingency aborts for crew survival.