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Venera Vlašić
The Venera (, 'Venus') program was a series of space probes developed by the Soviet Union between 1961 and 1984 to gather information about the planet Venus. Thirteen probes successfully entered the Venusian atmosphere, including the two Venera-Halley probes. Ten of those successfully landed on the surface of the planet. Due to the extreme conditions, the probes could only survive for a short period on the surface, from 23 minutes to two hours. The ''Venera'' program established a number of precedents in space exploration, among them being the first human-made devices to enter the atmosphere of another planet (Venera 3 on 1 March 1966), the first to make a soft landing on another planet (Venera 7 on 15 December 1970), the first to return images from another planet's surface (Venera 9 on 8 June 1975), the first to record sounds on another planet (Venera 13 on 30 October 1981), and the first to perform high-resolution radar mapping scans (Venera 15 on 2 June 1983). The Ven ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Molniya (rocket)
The Molniya (, meaning "lightning"), GRAU The Main Missile and Artillery Directorate of the Ministry of Defense of the Russian Federation (), commonly referred to by its transliterated acronym GRAU (), is a department of the Russian Ministry of Defense. It is subordinate to the Chief of ... Index 8K78, was a modification of the well-known R-7 Semyorka rocket and had four stages. The rocket was given the name ''Molniya'' due to the large number of Molniya (satellite), Molniya communication satellites the rockets launched. History The 8K78 resulted from a crash program by the Korolev design bureau, Korolev Bureau to develop a booster for launching planetary probes. A larger third stage was added along with a fourth stage (Blok L) that was designed to fire in-orbit to send the payload out of Low Earth orbit, LEO (replacing the inaccurate direct ascent of the first generation Luna probes launched on the 8K72) and the core and strap-ons had the new uprated 8D74K first stage en ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Proton (rocket)
A proton is a stable subatomic particle, symbol , H+, or 1H+ with a positive electric charge of +1 ''e'' (elementary charge). Its mass is slightly less than the mass of a neutron and approximately times the mass of an electron (the proton-to-electron mass ratio). Protons and neutrons, each with a mass of approximately one dalton, are jointly referred to as ''nucleons'' (particles present in atomic nuclei). One or more protons are present in the nucleus of every atom. They provide the attractive electrostatic central force which binds the atomic electrons. The number of protons in the nucleus is the defining property of an element, and is referred to as the atomic number (represented by the symbol ''Z''). Since each element is identified by the number of protons in its nucleus, each element has its own atomic number, which determines the number of atomic electrons and consequently the chemical characteristics of the element. The word ''proton'' is Greek for "first", and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kosmos 482
Kosmos 482 ( meaning ''Cosmos 482'') was an attempted Soviet Venus probe. Launched 31 March 1972, at 04:02:33 UTC, it failed to escape low Earth orbit. Because of this, its name was retrospectively changed to " Kosmos" which was used for Earth-orbiting satellites. After achieving a parking orbit around Earth, the full Venera payload (1972-023A) separated into two objects. What was calculated to be the Venera main bus kept the 1972-023A designation, while the designation 1972-023E (catalogue no. 6073) was assigned to the descent craft, which was the section meant to be landed on Venus. The main bus and its associated rocket stages reentered Earth's atmosphere between 3 April 1972 and 5 May 1981. During a 6:04 to 7:32 UTC window on 10 May 2025, the descent craft crashed while it was on a trajectory over Australia, the Indian Ocean, the Middle East and Europe. According to the Russian space agency Roscosmos, it crashed at 6:24 UTC, into the north-eastern Indian Ocean. The l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Space Probe Venera On The Venus Surface (artist Recreation)
Space is a three-dimensional continuum containing positions and directions. In classical physics, physical space is often conceived in three linear dimensions. Modern physicists usually consider it, with time, to be part of a boundless four-dimensional continuum known as ''spacetime''. The concept of space is considered to be of fundamental importance to an understanding of the physical universe. However, disagreement continues between philosophers over whether it is itself an entity, a relationship between entities, or part of a conceptual framework. In the 19th and 20th centuries mathematicians began to examine geometries that are non-Euclidean, in which space is conceived as '' curved'', rather than '' flat'', as in the Euclidean space. According to Albert Einstein's theory of general relativity, space around gravitational fields deviates from Euclidean space. Experimental tests of general relativity have confirmed that non-Euclidean geometries provide a better model for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Zond 3
Zond 3 was a 1965 space probe which performed a flyby of the Moon far side, taking 28 quality photographs. It was a member of the Soviet Zond program while also being part of the Mars 3MV project. It was unrelated to Zond spacecraft designed for crewed circumlunar missions (Soyuz 7K-L1). It is believed that Zond 3 was initially designed as a companion spacecraft to Zond 2 to be launched to Mars during the 1964 launch window. The opportunity to launch was missed, and the spacecraft was launched on a Mars-crossing trajectory as a spacecraft test, even though Mars was no longer attainable. Spacecraft design The spacecraft was of the 3MV-4 type, similar to Zond 2. In addition to a 106.4 mm focal length imaging system for visible light photography and ultraviolet spectrometry at 285-355 μm, it carried ultraviolet (190-275 μm) and infrared (3-4 μm) spectrophotometers, radiation sensors ( gas-discharge and scintillation counters), charged particle detector, magnetometer, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Venera 8
Venera 8 ( meaning ''Venus 8'') was a probe in the Soviet Venera program for the exploration of Venus and was the second robotic space probe to conduct a successful landing on the surface of Venus. Venera 8 was a Venus atmospheric probe and lander. Its instrumentation included temperature, pressure, and light sensors as well as an altimeter, gamma ray spectrometer, gas analyzer, and radio transmitters. Journey to Venus The spacecraft took 118 days to reach Venus with one mid-course correction on 6 April 1972, separating from the bus (which contained a cosmic ray detector, solar wind detector, and ultraviolet spectrometer) and entering the atmosphere on 22 July 1972 at 08:37 UT. A refrigeration system attached to the bus was used to pre-chill the descent capsule's interior prior to atmospheric entry in order to prolong its life on the surface. Descent speed was reduced from 41,696 km/h to about 900 km/h by atmospheric drag deceleration. The 2.5 meter diameter parach ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atmosphere Of Venus
The atmosphere of Venus is the very dense layer of gases surrounding the planet Venus. Venus's atmosphere is composed of 96.5% carbon dioxide and 3.5% nitrogen, with other chemical compounds present only in trace amounts. It is much denser and hotter than atmosphere of Earth, that of Earth; the temperature at the surface is 740 Kelvin, K (467 °C, 872 °F), and the pressure is , roughly the pressure found under water on Earth. The atmosphere of Venus supports decks of opaque clouds of sulfuric acid that cover the entire planet, preventing optics, optical Earth-based and orbital observation of the surface. Information about surface topography has been obtained exclusively by radar imaging. Aside from the very surface layers, the atmosphere is in a state of vigorous circulation. The upper layer of troposphere exhibits a phenomenon of Atmospheric super-rotation, super-rotation, in which the atmosphere circles the planet in just four Earth days, much faster than the p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Venera 6
Venera 6 (' meaning ''Venus 6''), or 2V (V-69) No.331, was a Soviet spacecraft, launched towards Venus to obtain atmospheric data. It had an on-orbit dry mass of . The spacecraft was very similar to Venera 4 although it was of a stronger design. When the atmosphere of Venus was approached, a capsule with a mass of was jettisoned from the main spacecraft. This capsule contained scientific instruments. During descent towards the surface of Venus, a parachute opened to slow the rate of descent. For 51 minutes on May 17, 1969, while the capsule was suspended from the parachute, data from the Venusian atmosphere were returned. It landed at . The spacecraft also carried a medallion bearing the State Coat of Arms of the Soviet Union and a bas-relief of Lenin to the night side of Venus. Given the results from Venera 4, the Venera 5 and Venera 6 landers contained new chemical analysis experiments tuned to provide more precise measurements of the atmosphere's components. Knowing the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Venera 5
Venera 5 ( meaning ''Venus 5'') was a space probe in the Soviet space program ''Venera'' for the exploration of Venus. Venera 5 was launched towards Venus to obtain atmospheric data. The spacecraft was very similar to Venera 4 although it was of a stronger design. The launch was conducted using a Molniya-M rocket, flying from the Baikonur Cosmodrome. When the atmosphere of Venus was approached, a capsule weighing and containing scientific instruments was jettisoned from the main spacecraft. During satellite descent towards the surface of Venus, a parachute opened to slow the rate of descent. For 53 minutes on 16 May 1969, while the capsule was suspended from the parachute, data from the Venusian atmosphere were returned. It landed at . The spacecraft also carried a medallion bearing the State Coat of Arms of the Soviet Union and a bas-relief of Lenin to the night side of Venus. Given the results from Venera 4, the Venera 5 and Venera 6 landers contained new chemical analy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
