|
Tiangong 1
Tiangong-1 () was China's first prototype space station. It orbited Earth from September 2011 to April 2018, serving as both a crewed laboratory and an experimental testbed to demonstrate orbital rendezvous and docking capabilities during its two years of active operational life. Launched uncrewed aboard a Long March 2F launch vehicle on 29 September 2011, it was the first operational component of the Tiangong program, which launched a larger, modular station into orbit in 2021. Tiangong-1 was initially projected to be deorbited in 2013,"China to launch module for future space station" 28 September 2011 Retrieved 10 March 2013 to be replaced over the following decade by the larger [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Re-entry
Atmospheric entry is the movement of an object from outer space into and through the gases of an atmosphere of a planet, dwarf planet, or natural satellite. There are two main types of atmospheric entry: ''uncontrolled entry'', such as the entry of astronomical objects, space debris, or bolides; and ''controlled entry'' (or ''reentry'') of a spacecraft capable of being navigated or following a predetermined course. Technologies and procedures allowing the controlled atmospheric ''entry, descent, and landing'' of spacecraft are collectively termed as ''EDL''. Objects entering an atmosphere experience atmospheric drag, which puts mechanical stress on the object, and aerodynamic heating—caused mostly by compression of the air in front of the object, but also by drag. These forces can cause loss of mass (ablation) or even complete disintegration of smaller objects, and objects with lower compressive strength can explode. Crewed space vehicles must be slowed to subsonic speeds be ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atmospheric Entry
Atmospheric entry is the movement of an object from outer space into and through the gases of an atmosphere of a planet, dwarf planet, or natural satellite. There are two main types of atmospheric entry: ''uncontrolled entry'', such as the entry of astronomical objects, space debris, or bolides; and ''controlled entry'' (or ''reentry'') of a spacecraft capable of being navigated or following a predetermined course. Technologies and procedures allowing the controlled atmospheric ''entry, descent, and landing'' of spacecraft are collectively termed as ''EDL''. Objects entering an atmosphere experience atmospheric drag, which puts mechanical stress on the object, and aerodynamic heating—caused mostly by compression of the air in front of the object, but also by drag. These forces can cause loss of mass (ablation) or even complete disintegration of smaller objects, and objects with lower compressive strength can explode. Crewed space vehicles must be slowed to subsonic speed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shenzhou 8
Shenzhou 8 () was an uncrewed flight of China's Shenzhou program, launched on 31 October 2011 UTC, or 1 November 2011 in China, by a Long March 2F rocket which lifted off from the Jiuquan Satellite Launch Center. The Shenzhou 8 spacecraft was automatically docked with the Tiangong-1 space module (launched on 29 September 2011) on 3 November 2011 and again on 14 November 2011. This uncrewed docking – China's first – was followed in 2012 with the crewed Shenzhou 9 mission, which performed a crewed docking (also China's first) with the Tiangong-1 module. Only the Soviet Union (Russia), Japan and the European Space Agency (ESA) had achieved automatic rendezvous and docking prior to China's accomplishment. History On 29 September 2008, Zhang Jianqi (), vice director of China crewed space engineering, announced in an interview of China Central Television (CCTV) that Tiangong-1, an 8-ton "target vehicle", would be launched in 2010 (now 2011), and that Shenzhou 8, Shenzhou 9 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solar Panel
A solar cell panel, solar electric panel, photo-voltaic (PV) module, PV panel or solar panel is an assembly of photovoltaic solar cells mounted in a (usually rectangular) frame, and a neatly organised collection of PV panels is called a photovoltaic system or solar array. Solar panels capture sunlight as a source of radiant energy, which is converted into electric energy in the form of direct current (DC) electricity. Arrays of a photovoltaic system can be used to generate solar electricity that supplies electrical equipment directly, or grid-connected photovoltaic system, feeds power back into an alternate current (AC) electric grid, grid via an solar inverter, inverter system. History In 1839, the ability of some materials to create an electrical charge from light exposure was first observed by the French physicist Edmond Becquerel. Though these initial solar panels were too inefficient for even simple electric devices, they were used as an instrument to measure light. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tiangong-2
Tiangong-2 () was a Chinese space laboratory and part of the Project 921-2 space station program. Tiangong-2 was launched on 15 September 2016. It was deorbited as planned on 19 July 2019. Tiangong-2 was neither designed nor planned to be a permanent orbital station; rather, it was intended as a testbed for key technologies used in the Tiangong station (Chinese large modular space station) of which the first module launched on 29 April 2021 and the remaining modules of which launched in 2022. History The China Manned Space Engineering Office published a brief description of Tiangong-2 and its successor Tiangong-3 in 2008, indicating that at least two crewed spaceships would be launched to dock with Tiangong-2. Tiangong-2 was originally expected to be launched by the China National Space Agency (CNSA) by 2015 to replace the prototype module Tiangong-1, which was launched in September 2011. In March 2011, Chinese officials stated that Tiangong-2 was scheduled to be launche ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tahiti
Tahiti (; Tahitian ; ; previously also known as Otaheite) is the largest island of the Windward group of the Society Islands in French Polynesia. It is located in the central part of the Pacific Ocean and the nearest major landmass is Australia. Divided into two parts, ''Tahiti Nui'' (bigger, northwestern part) and ''Tahiti Iti'' (smaller, southeastern part), the island was formed from volcanic activity; it is high and mountainous with surrounding coral reefs. Its population was 189,517 in 2017, making it by far the most populous island in French Polynesia and accounting for 68.7% of its total population. Tahiti is the economic, cultural and political centre of French Polynesia, an overseas collectivity and an overseas country of the French Republic. The capital of French Polynesia, Papeete, is located on the northwest coast of Tahiti. The only international airport in the region, Faaā International Airport, is on Tahiti near Papeete. Tahiti was originally settled by Pol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pacific Ocean
The Pacific Ocean is the largest and deepest of Earth's five oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean (or, depending on definition, to Antarctica) in the south, and is bounded by the continents of Asia and Oceania in the west and the Americas in the east. At in area (as defined with a southern Antarctic border), this largest division of the World Ocean—and, in turn, the hydrosphere—covers about 46% of Earth's water surface and about 32% of its total surface area, larger than Earth's entire land area combined .Pacific Ocean . '' Britannica Concise.'' 2008: Encyclopædia Britannica, Inc. The centers of both the |
Telemetry
Telemetry is the in situ data collection, collection of measurements or other data at remote points and their automatic data transmission, transmission to receiving equipment (telecommunication) for monitoring. The word is derived from the Greek language, Greek roots ''tele'', "remote", and ''metron'', "measure". Systems that need external instructions and data to operate require the counterpart of telemetry, telecommand. Although the term commonly refers to wireless data transfer mechanisms (e.g., using radio, ultrasonic, or Infrared#Communications, infrared systems), it also encompasses data transferred over other media such as a telephone or computer network, optical link or other wired communications like power line carriers. Many modern telemetry systems take advantage of the low cost and ubiquity of GSM networks by using SMS to receive and transmit telemetry data. A ''telemeter'' is a physical device used in telemetry. It consists of a sensor, a transmission path, and a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wang Yaping
Wang Yaping (; born January 1980) is a Chinese military transport pilot and taikonaut. Wang was the second female taikonaut selected to the People's Liberation Army Astronaut Corps, the second Chinese woman in space, and the first Chinese woman to perform a spacewalk. In April 2022, she set a new record for longest stay in space by a female Chinese astronaut with a cumulative 197 days in space. Early life Wang was born in the prefecture of Yantai, in Shandong province. Her mother and father are farmers, and she was reported to have two sisters. Career In September 1991, she entered junior high school in Yantai, and in 1994 entered Yantai Yizhong High School, graduating in 1997. She was admitted to the Changchun Flight College of the People's Liberation Army Air Force and joined the force in August 1997. Wang was from the seventh batch of female military pilots in China, one of 37 members, and graduated from Aviation University and flight school in 2001 with the rank of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Liu Yang (astronaut)
Liu Yang (; born 6 October 1978) is a Chinese military transport pilot and taikonaut who served as a crew member on the space mission Shenzhou 9. On 16 June 2012, Liu became the first Chinese woman in space. Biography Liu was born in Zhengzhou, Henan province in 1978, into a worker's family of Linzhou, Anyang origin. She graduated from PLA Air Force Aviation University in Changchun. Liu joined the PLA Air Force in 1997 and qualified as a pilot before becoming the deputy head of a flight unit, holding the PLAAF rank of major. She is a veteran pilot with 1,680 hours of flying experience. After two years of astronaut training, Liu excelled in testing before being selected with another woman, Wang Yaping, as a candidate for the astronaut corps. Liu was selected for the crew of Shenzhou 9, the first crewed mission to the Chinese space station Tiangong 1, along with Jing Haipeng, the first repeat Chinese space traveller, and Liu Wang. Liu became the first female Chinese astro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Female Astronauts
The following is a list of women who have traveled into space, sorted by date of first flight. This list includes Russian cosmonauts, who were the first women in outer space travelers. Valentina Tereshkova became the first woman to go to space in 1963, very early in crewed space exploration, and it would be almost twenty years before another flew ( Svetlana Savitskaya). Female astronauts went on to become commonplace in the 1980s and beyond. By 2019, roughly 12% of all the space travelers were women. , there were 73 women with completed spaceflights. History , of the 621 total space travelers ( FAI), 70 have been women. There have been one each from France, Italy, South Korea, and the United Kingdom; two each from Canada, China, and Japan; five from the Soviet Union/Russia; and 55 from the United States. The time between the first male and first female astronauts varied widely by country. The first astronauts originally from Britain, South Korea, and Iran were women, while th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shenzhou 10
Shenzhou 10 () was a crewed spaceflight of China's Shenzhou program that was launched on 11 June 2013. It was China's fifth crewed space mission. The mission had a crew of three astronauts: Nie Haisheng, who was mission commander and previously flew on Shenzhou 6; Zhang Xiaoguang, a former PLAAF squadron commander who conducted the rendezvous and docking; and Wang Yaping, the second Chinese female astronaut. The Shenzhou spacecraft docked with the Tiangong-1 trial space laboratory module on 13 June, and the astronauts performed physical, technological, and scientific experiments while on board. Shenzhou 10 was the 2nd and final expedition and mission to Tiangong-1 in this portion of the Tiangong program. On 26 June 2013, after a series of successful docking tests, Shenzhou 10 returned to Earth. Preparations Prior to the reboost of Tiangong-1 on 30 August 2012, it was projected that a launch window would open between late November and December 2012, when Tiangong-1's orbit had ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
.jpg "Click for more on -> Pacific Ocean")
