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Moonraker (film)
Moonraker is a 1979 James Bond film directed by Lewis Gilbert, in which Roger Moore's 007 uncovers Hugo Drax's plot to wipe out humanity from a secret space station.
MPEG transport stream
The MPEG transport stream (MPEG-TS) is a standard digital container format, defined in MPEG-2, for carrying audio, video, and data over error-prone satellite, cable, and terrestrial broadcast.
MTG-I1
MTG-I1, also known as Meteosat 12, is the first of four imaging satellites in Europe's Meteosat Third Generation system, launched on an Ariane 5 from Kourou in December 2022.
Multi-functional Satellite Augmentation System
The Multi-functional Satellite Augmentation System (MSAS), originally the MTSAT Satellite-based Augmentation System, is Japan's satellite-based augmentation system, broadcasting GPS correction and integrity data to aircraft from geostationary satellites since 2007.
Multistage rocket
A multistage rocket, or step rocket, is a launch vehicle built in two or more stages, each with its own engines and propellant, whose spent stages are dropped in flight.
Muscle atrophy in microgravity
Muscle atrophy in microgravity is the rapid loss of skeletal muscle mass and strength in weightlessness, managed by NASA as a flight risk with daily exercise countermeasures.
Muscle Atrophy Research and Exercise System
The Muscle Atrophy Research and Exercise System (MARES) is a European Space Agency facility on the International Space Station that measures astronauts' muscle force and speed.
MV (satellite bus)
MV was a family of Soviet interplanetary spacecraft buses approved at OKB-1 in 1961, serving as the platform for early Mars and Venus probes and the Venera series.
MVDDS dispute
The MVDDS dispute is a regulatory and legal conflict over whether terrestrial Multichannel Video Distribution and Data Service may share the 12.2–12.7 GHz band used by satellite television.
Mynaric
Mynaric is a Munich-based German aerospace company, founded in 2009, that produces optical terminals carrying high-bandwidth data between satellites, aircraft, and ground stations; Rocket Lab acquired it in 2026.
Myriade
Myriade is a standardized microsatellite bus developed by CNES, the French space agency, since 1998, flying 15 satellites since 2004 for science and defense missions.
N-2 (rocket)
The N-2, also written N-II, was a three-stage Japanese satellite launch vehicle developed by NASDA using American Delta rocket technology, launching eight satellites successfully between 1981 and 1987.
N1 (rocket)
The N1, also written N-1, was a super heavy-lift rocket the Soviet Union built to send cosmonauts to the Moon; all four launches, from 1969 to 1972, failed.
N1 (Н1) (rocket)
The N1 (Н1) was a Soviet super heavy-lift Moon rocket comparable in size to the Saturn V; all four of its launch attempts, from 1969 to 1972, ended in failure.
Nambi Narayanan
S. Nambi Narayanan is an Indian aerospace engineer who led development of the Vikas engine at ISRO and was falsely arrested in the fabricated 1994 espionage case.
Naro Space Center
The Naro Space Center (나로우주센터) is South Korea's national spaceport on Oenaro Island, operated by KARI and opened in 2009 as the country's only orbital launch site.
NASA
NASA, the National Aeronautics and Space Administration, is the United States' civilian space agency, created in 1958 and known for the 1969 Apollo Moon landing.
NASA Astronaut Corps
The NASA Astronaut Corps, organized as the Astronaut Office at Johnson Space Center in Houston, is the cadre of flight-qualified astronauts employed by NASA since 1959.
NASA Astronaut Group 2
NASA Astronaut Group 2, known as the New Nine or Next Nine, was NASA's second astronaut class, announced in September 1962, including Neil Armstrong and John Young.
NASA Astronaut Group 24
NASA Astronaut Group 24 is the 2025 astronaut candidate class of NASA, ten scientists, engineers, and test pilots chosen from more than 8,000 applicants, the first class in which women outnumbered men.
NASA Astronaut Group 3
NASA Astronaut Group 3, known as "The Fourteen," was the third class of astronauts selected by NASA in 1963 to fly the Gemini and Apollo missions.
NASA Astronaut Group 4
NASA Astronaut Group 4 was the first group of scientist-astronauts selected by NASA, announced in June 1965; its six members held doctorates in science, medicine, or engineering.
NASA Clean Air Study
The NASA Clean Air Study was a series of late-1980s experiments at Stennis Space Center showing houseplants reduce VOCs in sealed chambers, later reassessed at building scale.
NASA Deep Space Network
The NASA Deep Space Network (DSN) is a global array of giant radio antennas providing communication, tracking, and navigation for interplanetary spacecraft, operated by JPL.
NASA Docking System
The NASA Docking System is NASA's androgynous spacecraft docking mechanism, built to the International Docking System Standard and serving vehicles visiting the International Space Station since 2019.
NASA insignia
The NASA insignia, informally called the "meatball," is the official round emblem of NASA, designed by employee James Modarelli in 1959 from the agency's seal.
NASA Spaceflight Resource Management
NASA Spaceflight Resource Management (SFRM) is the team performance training program at Johnson Space Center that teaches astronauts and flight controllers communication and decision making.
NASA X-38
The NASA X-38, also known as the X-38 Crew Return Vehicle, was a series of five lifting-body prototypes meant to return up to seven ISS crewmembers to Earth, canceled in 2002.
NASASpaceFlight.com
NASASpaceFlight.com, commonly abbreviated NSF, is an independent American spaceflight news organization founded in 2005 and headquartered at Kennedy Space Center, Florida, with no NASA affiliation.
National Association of Rocketry
The National Association of Rocketry (NAR) is an American nonprofit organization, founded in 1957 by G. Harry Stine and Orville Carlisle, dedicated to safety and education in model rocketry.