61,984 articles
Spacecraft reentries, 2020–2023
Spacecraft reentries, 2020–2023 covers satellites, rocket stages, and debris returning to Earth's atmosphere, with cataloged objects rising from 878 in 2020 to 2,085 in 2023.
Spaceflight
Spaceflight is the flight of vehicles into and through outer space, achieved by launching on rockets that carry their own propellant, spanning human and robotic spaceflight.
Spaceflight 1960–1964
Spaceflight 1960–1964 spans the Cold War space race's defining firsts: Yuri Gagarin's first orbit in 1961, John Glenn's first American orbital flight in 1962, and Syncom 3.
Spaceflight in the 1990s
Spaceflight in the 1990s saw the Space Shuttle become a routine workhorse, the launch of Hubble in 1990, and the start of the ISS assembly and Shuttle-Mir program.
Spaceflight osteopenia
Spaceflight osteopenia is the loss of bone mineral density that astronauts experience in microgravity, at about 1% to 1.5% per month in weight-bearing bones, raising fracture and osteoporosis risk.
Spaceflight participant
A spaceflight participant is a person flown aboard a launch or reentry vehicle who is not a crew member, the FAA and NASA's formal term for space tourists.
Spaceflight-associated neuro-ocular syndrome
Spaceflight-associated neuro-ocular syndrome (SANS), formerly known as visual impairment and intracranial pressure (VIIP) syndrome, is a collection of eye changes affecting astronauts on long-duration spaceflight, first described in 2011.
Spacelab
Spacelab was a modular space laboratory developed by the European Space Agency for NASA's Space Shuttle, flying on 22 science missions from 1983 to 1998.
SpaceNews
SpaceNews is an American trade publication covering the global space industry since 1989, reporting on space companies, government agencies, technologies, and policy through a monthly magazine and daily online coverage.
Spaceplane
A spaceplane, also called an aerospace plane, is a vehicle that reaches space like a rocket but glides back to a runway landing like an aircraft.
Spaceport
A spaceport is a ground-based facility from which rockets launch into space, in the US a site licensed by the FAA; 28 have launched satellites to orbit since 1957.
Spaceport America
Spaceport America, also known as the Southwest Regional Spaceport, is an FAA-licensed commercial spaceport in Sierra County, New Mexico, built starting in 2009 as Virgin Galactic's home base.
Spaceports in the Middle East and Africa
Spaceports in the Middle East and Africa are rocket launch facilities, including Israel's Palmachim Airbase and Iran's Imam Khomeini Spaceport, while Africa has no active orbital site.
Spaceship Earth (Epcot)
Spaceship Earth, also known as the Epcot Ball, is a dark ride inside a large geodesic sphere at Epcot in Walt Disney World, Florida, opened in 1982.
SpaceShipOne
SpaceShipOne was a privately funded, rocket-powered suborbital aircraft built by Burt Rutan's Scaled Composites with Paul Allen's financing, becoming the first private crewed vehicle to reach space in 2004.
SpaceShipTwo
SpaceShipTwo is a reusable, air-launched, eight-seat suborbital rocket plane built for Virgin Galactic's space tourism program, carried aloft by White Knight Two and using a folding feather wing for reentry.
SpaceWire
SpaceWire is a European spacecraft data-handling network standard developed under ESA auspices and standardized in 2003, used by NASA, JAXA, and Roscosmos missions including JWST and BepiColombo.
SpaceX
SpaceX, formally Space Exploration Technologies Corp., is an American spaceflight company founded by Elon Musk in 2002, now the dominant orbital launch provider and Starlink operator.
SpaceX acquisition of Anysphere
The SpaceX acquisition of Anysphere was a $60 billion all-stock purchase of Anysphere, maker of the Cursor AI coding assistant, agreed in June 2026 and completed that August.
SpaceX acquisition of xAI
The SpaceX acquisition of xAI was a February 2026 all-stock merger in which Elon Musk's SpaceX bought the Grok maker at a $250 billion valuation.
SpaceX Crew-1
SpaceX Crew-1, also known as USCV-1, was the first operational Commercial Crew mission, flying NASA and JAXA astronauts to the International Space Station from November 2020 to May 2021.
SpaceX Crew-11
SpaceX Crew-11 was the 11th SpaceX crew rotation mission to the International Space Station, flying four astronauts aboard the Crew Dragon Endeavour from August 2025 to January 2026.
SpaceX Crew-12
SpaceX Crew-12 was a 2026 NASA Commercial Crew mission to the International Space Station, carrying Jessica Meir, Jack Hathaway, Sophie Adenot, and Andrey Fedyaev for 237 days in orbit.
SpaceX Crew-13
SpaceX Crew-13 is the thirteenth SpaceX crew rotation mission to the International Space Station, launched for NASA on October 1, 2026 with four astronauts from three space agencies.
SpaceX Crew-9
SpaceX Crew-9 was a 2024 NASA Commercial Crew mission to the International Space Station that returned Boeing Starliner astronauts Butch Wilmore and Suni Williams to Earth in 2025.
SpaceX Dragon
SpaceX Dragon, also known as the Dragon spacecraft, is a reusable SpaceX capsule that carries cargo and astronauts to the International Space Station atop Falcon 9 rockets.
SpaceX Dragon 2
SpaceX Dragon 2, also called Crew Dragon, is a reusable SpaceX spacecraft that carries astronauts and cargo to the International Space Station, certified by NASA in 2020.
SpaceX IPO and Colossus compute revenue
SpaceX's June 2026 IPO, the largest in history, revealed more than $76 billion of contracted AI compute rent through 2029, mostly from Anthropic and Google, sparking a bubble debate.
SpaceX Merlin
The SpaceX Merlin, also known as the Merlin 1, is a family of kerosene and liquid oxygen rocket engines powering the Falcon 1, Falcon 9, and Falcon Heavy.
SpaceX Raptor
The SpaceX Raptor, or Raptor engine, is a liquid oxygen and liquid methane rocket engine developed by SpaceX, powering the Super Heavy booster and Starship upper stage.