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Soyuz 7K-L1
The Soyuz 7K-L1 "Zond" spacecraft was designed to launch men from the Earth to circle the Moon without going into lunar orbit in the context of the Soviet crewed Moon-flyby program in the Moon race. It was based on the Soyuz 7K-OK. Several modifications reduced vehicle mass and increased circumlunar capability. The most notable modifications were the replacement of the orbital module with a support cone and a high-gain parabolic antenna, the removal of a reserve parachute, and the addition of the gyro platform and star navigation sensors for the far space navigation. The spacecraft was capable of carrying two cosmonauts. At the start of flight testing, there were serious reliability problems with the new Proton rocket, the 7K-L1, and the Soyuz 7K-OK that the L1 was based on. History Chief Designer Sergei Korolev had originally envisioned a crewed lunar spacecraft launched in pieces by R-7 boosters and assembled in Earth orbit. The development of Vladimir Chelomei's large UR-50 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vasily Mishin
Vasily Pavlovich Mishin (russian: Васи́лий Па́влович Ми́шин) (18 January 1917 – 10 October 2001) was a Russian engineer in the Soviet Union, and a prominent rocket pioneer, best remembered for the failures in the Soviet space program that took place under his leadership. Mishin was born in Pavlovo-Posadsky District, Byvalino, in the Bogorodsky Uyezd of the Moscow Governorate of the Russian Empire, and studied mathematics at the Moscow Aviation Institute. Mishin was a Soviet rocket scientist and one of the first Soviet specialists to see Nazism, Nazi Germany's V-2 facilities at the end of World War II, along with others such as Sergei Korolev, Sergey Korolev, who preceded him as the S.P. Korolev Rocket and Space Corporation Energia, OKB-1 design bureau head, and Valentin Glushko, who succeeded him. Mishin worked with Korolev as his deputy in the Experimental Design Bureau working on projects such as the development of the first Soviet ICBM as well in the S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Micrometeor
A micrometeoroid is a tiny meteoroid: a small particle of rock in space, usually weighing less than a gram. A micrometeorite is such a particle that survives passage through Earth's atmosphere and reaches Earth's surface. The term "micrometeoroid" was officially deprecated by the IAU in 2017, as redundant to meteoroid. Origins and orbits Micrometeoroids are very small pieces of rock or metal broken off from larger chunks of rock and debris often dating back to the birth of the Solar System. Micrometeoroids are extremely common in space. Tiny particles are a major contributor to space weathering processes. When they hit the surface of the Moon, or any airless body (Mercury, the asteroids, etc.), the resulting melting and vaporization causes darkening and other optical changes in the regolith. Micrometeoroids have less stable orbits than meteoroids, due to their greater surface area to mass ratio. Micrometeoroids that fall to Earth can provide information on millimeter scale h ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zond 7
Zond 7, a formal member of the Soviet Zond program and unmanned version of Soyuz 7K-L1 manned Moon-flyby spacecraft, the first truly successful test of L1, was launched towards the Moon on a Proton-K D rocket on August 7, 1969, on a mission of further studies of the Moon and circumlunar space, to obtain color photography of Earth and the Moon from varying distances, and to flight test the spacecraft systems. Earth photos were obtained on August 9, 1969. On August 11, 1969, the spacecraft flew past the Moon at a distance of 1984.6 km and conducted two picture taking sessions. On its way back from the moon the spacecraft tested its radio systems by transmitting recorded voices. Zond 7 reentered Earth's atmosphere on August 14, 1969, and achieved a soft landing in a preset region south of Kustanai, Kazakhstan. On its trip the craft carried 4 turtles. A human-like tissue-equivalent phantom for radiation measurements has been placed aboard. The phantom was equipped with 20 ch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Skip Reentry
Non-ballistic atmospheric entry is a class of atmospheric entry trajectories that follow a non-ballistic trajectory by employing aerodynamic lift in the high upper atmosphere. It includes trajectories such as skip and glide. Skip is a flight trajectory where the spacecraft goes in and out the atmosphere. Glide is a flight trajectory where the spacecraft stays in the atmosphere for a sustained flight period of time. In most examples, a skip reentry roughly doubles the range of suborbital spaceplanes and reentry vehicles over the purely ballistic trajectory. In others, a series of ''skips'' allows the range to be further extended. Non-ballistic atmospheric entry was first seriously studied as a way to extend the range of ballistic missiles, but was not used operationally in this form as conventional missiles with extended range were introduced. The underlying aerodynamic concepts have been used to produce maneuverable reentry vehicles (MARV), to increase the accuracy of some mis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zond Failed Missions
Zond program (Зонд; Russian for "probe") was a Soviet robotic spacecraft program launched between 1964 and 1970, using two spacecraft series, one for interplanetary exploration, and the other for lunar exploration. Program details The program had two series of spacecraft. The first series, based on the 3MV planetary probe, was intended to gather information about nearby planets. The second series of test spacecraft were intended as a precursor to crewed circumlunar loop flights, using a stripped-down variant of Soyuz spacecraft, consisting of the service and descent modules, but lacking the orbital module The Government of the Soviet Union had suppressed failed Space Race missions information to prevent bad publicity during the height of the Cold War and the Space Race. Since the fall of the Soviet Union in 1991, much previously restricted information became available. Zond 1964A Zond 1964A a SL-6/A-2-e launch vehicle launched 4 June 1964, failed to achieve Earth o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zond 8
Zond 8, also known as L-1 No.14, was the last in the series of circumlunar spacecraft, a member of the Soviet Zond program, designed to rehearse a piloted circumlunar flight, an uncrewed version of Soyuz 7K-L1 crewed circumlunar flight spacecraft. The project was initiated in 1965 to compete with the Americans in the race to the Moon but lost its importance once three astronauts circled the Moon on the Apollo 8 mission in December 1968. Mission Zond 8 was launched on 20 October 1970, at 19:55:39 GMT by a Proton-K / Blok D launcher from Site 81/23 of the Baikonur Cosmodrome, towards the Moon. Zond 8 had a mass of . The announced objectives of Zond 8 were investigations of the Moon and circumlunar space and testing of onboard systems and units. The spacecraft obtained photographs of Earth on 21 October from a distance of . After a mid-course correction on 22 October 1970 at a distance of from Earth. The spacecraft transmitted flight images of Earth for three days. Zond 8 reached ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zond 4
Zond 4, part of the Soviet Zond program and an uncrewed version of Soyuz 7K-L1 crewed Moon-flyby spacecraft, was one of the first Soviet experiments towards crewed circumlunar spaceflight. It was launched to test the spaceworthiness of the new capsule and to gather data about flights in circumterrestrial space. It was the first Soviet spacecraft to possess a computer, the 34 kg Argon 11. The spacecraft was successfully launched into a 354,000 km apogee orbit 180 degrees away from the Moon, It was launched away from the Moon probably to avoid trajectory complications with lunar gravity. However, on re-entry the L1's guidance system failed. It hit the atmosphere precisely at the calculated time, but was not guided to generate lift and fly out of the atmosphere again. A ballistic re-entry would mean no recovery on Soviet soil, so the APO destruct system automatically blew up the capsule at 10 to 15 km altitude, 180–200 km off the African coast at Guinea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Human-rating Certification
Human-rating certification, also known as man-rating or crew-rating, is the certification of a spacecraft or launch vehicle as capable of safely transporting humans. There is no one particular standard for human-rating a spacecraft or launch vehicle, and the various entities that launch or plan to launch such spacecraft specify requirements for their particular systems to be human-rated. NASA One entity that applies human rating is the US government civilian space agency, NASA. NASA's human-rating requires not just that a system be designed to be tolerant of failure and to protect the crew even if an unrecoverable failure occurs, but also that astronauts aboard a human-rated spacecraft have some control over it. This set of technical requirements and the associated certification process for crewed space systems are in addition to the standards and requirements for all of NASA's space flight programs. The development of the Space Shuttle and the International Space Station pre-da ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Valery Bykovsky
Valery Fyodorovich Bykovsky (russian: Вале́рий Фёдорович Быко́вский; 2 August 1934 – 27 March 2019) was a Soviet cosmonaut who flew on three space flights: Vostok 5, Soyuz 22, and Soyuz 31. He was also backup for Vostok 3 and Soyuz 37. Early life and career Born in Pavlovsky Posad, Russia, on 2 August 1934, Bykovsky was the son of Fyodor Fyodorovich Bykovsky and Klavdia Ivanova. He had an older sister named Margarita born three years earlier. When he was four years old, World War II began, forcing the family to move to Kuybyshev, and later again to Syzran, before moving back to near Moscow. By the age of 14, Bykovsky wanted to attend naval school; however, his father was not a proponent of this idea and encouraged him to stay at his school. A few days later Bykovsky attended a lecture on the Soviet Air Force Club which inspired him to pursue his dream of becoming a pilot. He began flight theory lessons when he was 16 at the Moscow City Aviation Cl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alexei Leonov
Alexei Arkhipovich Leonov. (30 May 1934 – 11 October 2019) was a Soviet and Russian cosmonaut, Air Force major general, writer, and artist. On 18 March 1965, he became the first person to conduct a spacewalk, exiting the capsule during the Voskhod 2 mission for 12 minutes and 9 seconds. He was also selected to be the first Soviet person to land on the Moon although the project was cancelled. In July 1975, Leonov commanded the Soyuz capsule in the Apollo-Soyuz mission, which docked in space for two days with an American Apollo capsule. Early life and military service Leonov was born on 30 May 1934 in Listvyanka, West Siberian Krai, Russian SFSR. His grandfather had been forced to relocate to Siberia for his role in the 1905 Russian Revolution. Alexei was the eighth of nine surviving children born to Yevdokia and Arkhip. His father was an electrician and miner. In 1936, his father was arrested and declared an "enemy of the people". Leonov wrote in his autobiography ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Apollo 8
Apollo 8 (December 21–27, 1968) was the first crewed spacecraft to leave low Earth orbit and the first human spaceflight to reach the Moon. The crew orbited the Moon ten times without landing, and then departed safely back to Earth. These three astronauts—Frank Borman, James Lovell, and William Anders—were the first humans to personally witness and photograph the far side of the Moon and an Earthrise. Apollo 8 launched on December 21, 1968, and was the second crewed spaceflight mission flown in the United States Apollo space program after Apollo7, which stayed in Earth orbit. Apollo8 was the third flight and the first crewed launch of the Saturn V rocket, and was the first human spaceflight from the Kennedy Space Center, located adjacent to Cape Kennedy Air Force Station in Florida. Originally planned as the second crewed Apollo Lunar Module and command module test, to be flown in an elliptical medium Earth orbit in early 1969, the mission profile was changed in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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