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Direct Ascent
Direct ascent is a method of landing a spacecraft on the Moon or another planetary surface directly, without first assembling the vehicle in Earth orbit, or carrying a separate landing vehicle into orbit around the target body. It was proposed as the first method to achieve a crewed lunar landing in the United States Apollo program, but was rejected because it would have required developing a prohibitively large launch vehicle. Apollo program The Apollo program was initially planned based on the assumption that direct ascent would be used. This would have required developing an enormous launch vehicle, either the Saturn C-8 or Nova rocket, to launch the three-man Apollo spacecraft, with an attached landing module, directly to the Moon, where it would land tail-first and then launch off the Moon for the return to Earth. The other two options that NASA considered required a somewhat smaller launch vehicle, either the Saturn C-4 or C-5. These were Earth Orbit Rendezvous, which ...
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Spacecraft
A spacecraft is a vehicle or machine designed to fly in outer space. A type of artificial satellite, spacecraft are used for a variety of purposes, including communications, Earth observation, meteorology, navigation, space colonization, planetary exploration, and transportation of humans and cargo. All spacecraft except single-stage-to-orbit vehicles cannot get into space on their own, and require a launch vehicle (carrier rocket). On a sub-orbital spaceflight, a space vehicle enters space and then returns to the surface without having gained sufficient energy or velocity to make a full Earth orbit. For orbital spaceflights, spacecraft enter closed orbits around the Earth or around other celestial bodies. Spacecraft used for human spaceflight carry people on board as crew or passengers from start or on orbit (space stations) only, whereas those used for robotic space missions operate either autonomously or telerobotically. Robotic spacecraft used to support scientific re ...
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Soviet Union
The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, it was nominally a federal union of fifteen national republics; in practice, both its government and its economy were highly centralized until its final years. It was a one-party state governed by the Communist Party of the Soviet Union, with the city of Moscow serving as its capital as well as that of its largest and most populous republic: the Russian SFSR. Other major cities included Leningrad (Russian SFSR), Kiev (Ukrainian SSR), Minsk ( Byelorussian SSR), Tashkent (Uzbek SSR), Alma-Ata (Kazakh SSR), and Novosibirsk (Russian SFSR). It was the largest country in the world, covering over and spanning eleven time zones. The country's roots lay in the October Revolution of 1917, when the Bolsheviks, under the leadership of Vladimir Lenin, overthrew the Russian Provisional Government ...
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List Of Crewed Lunar Lander Designs
This is a list of designs for crewed lunar landers, spacecraft intended to land on the Moon. A key aspect is achieving a soft landing, and for an ascent stage to successfully escape the Moon's gravity. Another aspect is how many stages the design has to undergo to achieve its objective, and the number of passengers and amount of payload it can carry. See also *Human spaceflight Human spaceflight (also referred to as manned spaceflight or crewed spaceflight) is spaceflight with a crew or passengers aboard a spacecraft, often with the spacecraft being operated directly by the onboard human crew. Spacecraft can also be ... * References External linksLunar lander conceptual design {{Moon spacecraft Crewed spacecraft Landers (spacecraft) ...
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Lunex Project
The Lunex Project was a US Air Force 1958 plan for a crewed lunar landing prior to the Apollo Program. The final lunar expedition plan in 1961 was for a 21-person underground Air Force base on the Moon by 1968 at a total cost of $7.5 billion. The primary distinction between the later Apollo missions and Lunex was the orbital rendezvous maneuver. The Lunex vehicle, composed of a landing module and a lifting body return/re-entry module, would land the entire vehicle and all astronauts on the surface, whereas the final Apollo mission involved a separate ascent module leaving the command module and service module connected in lunar orbit with a single astronaut. The original plan for Apollo was for direct ascent, similar to Lunex. Design details Associated vehicles (estimates) Lunex Lunar Lander *Crew Size: 3 *Length: 16.16 m (53.01 ft) *Maximum Diameter: 7.62 m (24.99 ft) *Span: 7.62 m (24.99 ft) *Mass: 61 000 kg (134 000 lb) *Agency: USAF ...
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Destination Moon (film)
''Destination Moon'' (a.k.a. ''Operation Moon'') is a 1950 American Technicolor science fiction film, independent film, independently produced by George Pal and directed by Irving Pichel, that stars John Archer (actor), John Archer, Warner Anderson, Tom Powers, and Dick Wesson (actor), Dick Wesson. The film was distributed in the United States and the United Kingdom by Eagle-Lion Classics. ''Destination Moon'' was the first major U.S. science fiction film to deal with the practical scientific and engineering challenges of space travel and to speculate on what a crewed expedition to the Moon would look like. Noted science fiction author Robert A. Heinlein contributed to the screenplay. The film's premise is that private industry will mobilize, finance, and manufacture the first spacecraft to the Moon, and that the U.S. government will be forced to purchase or lease the technology to remain the dominant power in space. Different industrialists cooperate to support the private ventu ...
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Rocketship X-M
''Rocketship X-M'' (a.k.a. ''Expedition Moon'' and originally ''Rocketship Expedition Moon'') is a 1950 American black-and-white science fiction film from Robert L. Lippert, Lippert Pictures, the first outer space adventure of the post-World War II era. The film was produced and directed by Kurt Neumann (director), Kurt Neumann and stars Lloyd Bridges, Osa Massen, John Emery (actor), John Emery, Noah Beery Jr., Hugh O'Brian, and Morris Ankrum. ''Rocketship X-M'' tells the story of a Moon expedition gone awry. Through a series of unseen events, the expedition's crew find themselve on the infamous red plant, Mars. During their time on the planet they go on to discover the remnants of a Martian civilization destroyed long ago by atomic war and now reverted to Societal collapse, barbarism. Plot Four men and a woman blast into outer space from the White Sands Proving Ground aboard the RX-M (Rocketship Expedition-Moon) on humanity's first expedition to the Moon. Halfway there, after ...
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Science Fiction
Science fiction (sometimes shortened to Sci-Fi or SF) is a genre of speculative fiction which typically deals with imaginative and futuristic concepts such as advanced science and technology, space exploration, time travel, parallel universes, extraterrestrial life, sentient artificial intelligence, cybernetics, certain forms of immortality (like mind uploading), and the singularity. Science fiction predicted several existing inventions, such as the atomic bomb, robots, and borazon, whose names entirely match their fictional predecessors. In addition, science fiction might serve as an outlet to facilitate future scientific and technological innovations. Science fiction can trace its roots to ancient mythology. It is also related to fantasy, horror, and superhero fiction and contains many subgenres. Its exact definition has long been disputed among authors, critics, scholars, and readers. Science fiction, in literature, film, television, and other media, has beco ...
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LK-700
LK-700 was a Soviet direct ascent lunar lander program proposed in 1964. It was developed by Vladimir Chelomey as an alternative to the N1-L3 program. It was also a further development of the LK-1 lunar flyby spacecraft. It would have been launched using the proposed UR-700 rocket (related to the Proton rocket) with a crew of three cosmonauts An astronaut (from the Ancient Greek (), meaning 'star', and (), meaning 'sailor') is a person trained, equipped, and deployed by a human spaceflight program to serve as a commander or crew member aboard a spacecraft. Although generally r ... on a direct flight to the lunar surface and back. The direct landing approach would allow the Soviets to land anywhere on the moon's nearside. The program was canceled in 1974. Mission profile Uncrewed flights would be followed by crewed flights. The proposed schedule was: * May 1972: First UR-700/LK-700 uncrewed launch. Subsequent launches in November 1972 and April 1973. * April 1973: Firs ...
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UR-700
The Universal Rocket or ''UR'' family of missiles and carrier rockets is a Russian, previously Soviet rocket family. Intended to allow the same technology to be used in all Soviet rockets, the UR is produced by the Khrunichev State Research and Production Space Center. Several variants were originally planned, of which only three flew, and only two of which entered service. In addition, the cancelled UR-500 ICBM formed the basis for the Proton carrier rocket. UR-100 The UR-100 and its variants (e.g. UR-100N) were the standard small ICBM of the Soviet Union during the Cold War. Only the UR-100N (NATO reporting designation: SS-19 Stiletto) remains in active duty, with 20–30 missiles operational. The Strela and Rokot carrier rockets are based on the UR-100N. A number of UR-100Ns have been earmarked for use as launch vehicles for the Avangard maneuverable reentry vehicle. UR-200 The UR-200 was intended to be a larger ICBM that could also be used as a carrier rocket. Nine test fl ...
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OKB-52
NPO Mashinostroyeniya (russian: НПО машиностроения, lit=RDA of machine manufacturing) is a rocket design bureau based in Reutov, Russia. During the Cold War it was responsible for several major weapons systems, including the UR-100N Intercontinental ballistic missile and the military Almaz space station program. India is Mashinostroyeniya's second largest customer after the Russian Federation for sale of P-70 Ametist, BrahMos, BrahMos-II and P-800 Oniks. History NPO Mashinostroyeniya was founded in 1944 to develop rockets for the Russian military. Under the leadership of cruise missile designer Vladimir Chelomey, the firm was lead developer of the Soviet Union's space satellites, cruise missiles, and intercontinental ballistic missiles. Originally part of the OKB-51 design bureau, it relocated to Reutov, and from 1955 to 1966 was designated OKB-52 (and also OKB-52 MAP). OKB-52 became later known as TsKBM. The OKB-52 was the main rival of OKB-1 (then the design b ...
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Lunar Landing
A Moon landing is the arrival of a spacecraft on the surface of the Moon. This includes both crewed and robotic missions. The first human-made object to touch the Moon was the Soviet Union's Luna 2, on 13 September 1959. The United States' Apollo 11 was the first crewed mission to land on the Moon, on 20 July 1969. There were six crewed U.S. landings between 1969 and 1972, and numerous uncrewed landings, with no soft landings happening between 22 August 1976 and 14 December 2013. The United States is the only country to have successfully conducted crewed missions to the Moon, with the last departing the lunar surface in December 1972. All soft landings took place on the near side of the Moon until 3 January 2019, when the Chinese Chang'e 4 spacecraft made the first landing on the far side of the Moon. Uncrewed landings After the unsuccessful attempt by Luna 1 to land on the Moon in 1959, the Soviet Union performed the first hard Moon landing – "hard" meaning the ...
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Apollo 11
Apollo 11 (July 16–24, 1969) was the American spaceflight that first landed humans on the Moon. Commander Neil Armstrong and lunar module pilot Buzz Aldrin landed the Apollo Lunar Module ''Eagle'' on July 20, 1969, at 20:17 UTC, and Armstrong became the first person to step onto the Moon's surface six hours and 39 minutes later, on July 21 at 02:56 UTC. Aldrin joined him 19 minutes later, and they spent about two and a quarter hours together exploring the site they had named Tranquility Base upon landing. Armstrong and Aldrin collected of lunar material to bring back to Earth as pilot Michael Collins flew the Command Module ''Columbia'' in lunar orbit, and were on the Moon's surface for 21 hours, 36 minutes before lifting off to rejoin ''Columbia''. Apollo 11 was launched by a Saturn V rocket from Kennedy Space Center on Merritt Island, Florida, on July 16 at 13:32 UTC, and it was the fifth crewed mission of NASA's Apollo program. The Apollo spacecraft had three ...
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