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STS-75
STS-75 was a 1996 NASA Space Shuttle mission, the 19th mission of the ''Columbia'' orbiter. Crew Allen, Hoffman, Nicollier and Chang-Díaz had previously been members of the STS-46 crew, which had flown the TSS-1 experiment in 1992. Mission objective Tethered Satellite System The primary objective of STS-75 was to carry the Tethered Satellite System Reflight (TSS-1R) into orbit and to deploy it spaceward on a conducting tether. The mission also flew the United States Microgravity Payload (USMP-3) designed to investigate materials science and condensed matter physics. The TSS-1R mission was a reflight of TSS-1 which was flown onboard Space Shuttle ''Atlantis'' on STS-46 in July/August 1992. The Tether Satellite System circled the Earth at an altitude of 296 kilometers, placing the tether system within the rarefied electrically charged layer of the atmosphere known as the ionosphere. STS-75 mission scientists hoped to deploy the tether to a distance of . Over 19 kilometers of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tether Satellite
Space tethers are long cables which can be used for propulsion, momentum exchange, stabilization and attitude control, or maintaining the relative positions of the components of a large dispersed satellite/spacecraft sensor system. Depending on the mission objectives and altitude, spaceflight using this form of spacecraft propulsion is theorized to be significantly less expensive than spaceflight using rocket engines. Main techniques Tether satellites might be used for various purposes, including research into tether propulsion, tidal stabilization and orbital plasma dynamics. Five main techniques for employing space tethers are in development: ;Electrodynamic tethers Electrodynamic tethers are primarily used for propulsion. These are conducting tethers that carry a current that can generate either thrust or drag from a planetary magnetic field, in much the same way as an electric motor does. ;Momentum exchange tethers These can be either rotating tethers, or non-rotating ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tethered Satellite System
Space tethers are long cables which can be used for propulsion, momentum exchange, stabilization and attitude control, or maintaining the relative positions of the components of a large dispersed satellite/spacecraft sensor system. Depending on the mission objectives and altitude, spaceflight using this form of spacecraft propulsion is theorized to be significantly less expensive than spaceflight using rocket engines. Main techniques Tether satellites might be used for various purposes, including research into tether propulsion, tidal stabilization and orbital plasma dynamics. Five main techniques for employing space tethers are in development: ;Electrodynamic tethers Electrodynamic tethers are primarily used for propulsion. These are conducting tethers that carry a current that can generate either thrust or drag from a planetary magnetic field, in much the same way as an electric motor does. ;Momentum exchange tethers These can be either rotating tethers, or non-rotati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Claude Nicollier
Claude Nicollier (born 2 September 1944 in Vevey, Switzerland) is the first astronaut from Switzerland. He has flown on four Space Shuttle missions. His first spaceflight ( STS-46) was in 1992, and his final spaceflight (STS-103) was in 1999. He took part in two servicing missions to the Hubble Space Telescope (called STS-61 and STS-103). During his final spaceflight he participated in a spacewalk, becoming the first European Space Agency astronaut to do so during a Space Shuttle mission (previous ESA astronauts conducted spacewalks aboard ''Mir'', see List of spacewalks and moonwalks 1965–1999). In 2000 he was assigned to the Astronaut Office Extravehicular Activity Branch, while maintaining a position as Lead ESA Astronaut in Houston. Nicollier retired from ESA in April 2007. He was appointed full professor of Spatial Technology at the École Polytechnique Fédérale de Lausanne on 28 March 2007. He was an expert board member of Swiss Space Systems, until the company's disso ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Umberto Guidoni
Umberto Guidoni (born 18 August 1954 in Rome) is an Italian astrophysicist, science writer and a former ESA astronaut, being the first European to visit the International Space Station. He is a veteran of two NASA Space Shuttle missions. He was also a Member of the European Parliament (MEP) from 2004 to 2009, with the Group of the European United Left ( GUE/NGL). Biography Career and spaceflights Guidoni earned a doctorate in astrophysics from the University of Rome ''La Sapienza'' in 1978 and worked in the Italian Space Agency (ASI) as well as in the European Space Agency (ESA). One of his research projects was the Tethered Satellite System, which was part of the payload of the STS-46 mission. Guidoni trained as an alternate payload specialist for that mission and made his first spaceflight aboard the Space Shuttle ''Columbia'' STS-75 in 1996, which included the second flight of the TSS system (TSS-1R). In 2001, Guidoni participated in the Space Shuttle's STS-100 mission, b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
STS-46
STS-46 was a NASA Space Shuttle mission using and was launched on July 31, 1992, and landed on August 8, 1992. Crew Backup crew Crew seating arrangements Mission highlights The mission's primary objectives were the deployment of the European Space Agency's European Retrievable Carrier (EURECA) and the joint NASA/ASI (Italian Space Agency) Tethered Satellite System (TSS-1). EURECA was deployed a day later than scheduled because of a problem with its data handling system. Seven and a half hours after deployment, the spacecraft's thrusters were fired to boost EURECA to its planned operating altitude of around . However, thruster firing was cut to six minutes from twenty-four minutes because of unexpected attitude data from the spacecraft. The problem was resolved, and EURECA was successfully boosted to its operational orbit on the mission's sixth day. TSS-1 deployment also was delayed one day because of the problems with EURECA. During deployment, the satellite reach ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Space Shuttle Columbia
Space Shuttle ''Columbia'' (OV-102) was a Space Shuttle orbiter manufactured by Rockwell International and operated by NASA. Named after the Columbia Rediviva, first American ship to circumnavigate the upper North American Pacific coast and the Columbia (personification), female personification of the United States, ''Columbia'' was the first of five Space Shuttle orbiters to fly in space, debuting the Space Shuttle, Space Shuttle launch vehicle on STS-1, its maiden flight in April 1981. As only the second full-scale orbiter to be manufactured after the Approach and Landing Tests, Approach and Landing Test vehicle ''Space Shuttle Enterprise, Enterprise'', ''Columbia'' retained unique features indicative of its experimental design compared to later orbiters, such as test instrumentation and distinctive black Chine (aeronautics), chines. In addition to a heavier fuselage and the retention of an internal airlock throughout its lifetime, these made ''Columbia'' the heaviest of the fi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maurizio Cheli
Maurizio Cheli (born 4 May 1959, in Zocca) is an Italian air force officer, a European Space Agency astronaut and a veteran of one NASA Space Shuttle mission. A native of Modena, Cheli attended the Italian Air Force Academy and trained as a test pilot in 1988 at the Empire Test Pilots' School, England. He was awarded the McKenna Trophy as the best student on his course, as well as the Sir Alan Cobham Award for the highest standard of flying and the Hawker Hunter Thropy for he best Preview Handling report. He studied geophysics at the University of Rome La Sapienza and earned a master's degree in aerospace engineering from the University of Houston. He then trained with the United States Air Force and was selected as an astronaut candidate by the European Space Agency in 1992. He holds the rank of lieutenant colonel in the Italian Air Force. He flew aboard STS-75 in 1996 as a mission specialist. That same year he joined Alenia Aeronautica, and two years later he became Chief Test Pi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Italian Space Agency
The Italian Space Agency ( it, Agenzia Spaziale Italiana; ASI) is a government agency established in 1988 to fund, regulate and coordinate space exploration activities in Italy. The agency cooperates with numerous national and international entities who are active in aerospace research and technology. Nationally, ASI is responsible for both drafting the National Aerospace Plan and ensuring it is carried out. To do this the agency operates as the owner/coordinator of a number of Italian space research agencies and assets such as CIRA as well as organising the calls and opportunities process for Italian industrial contractors on spaceflight projects. Internationally, the ASI provides Italy's delegation to the Council of the European Space Agency and to its subordinate bodies as well as representing the country's interests in foreign collaborations. ASI's main headquarters are located in Rome, Italy, and the agency also has direct control over two operational centres: the Centre f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
STS-76
STS-76 was NASA's 76th Space Shuttle mission, and the 16th mission for ''Atlantis''. STS-76 launched on 22 March 1996 at 08:13:04 UTC from Kennedy Space Center, launch pad 39B. STS-76 lasted over 9 days, traveled about while orbiting Earth an estimated 145 times, and landing at 13:28:57 UTC on 31 March 1996 at Edwards Air Force Base, runway 22. The flight was the third Shuttle mission to dock with the Russian Space Station Mir, as part of the Shuttle–Mir program, carrying astronaut Shannon Lucid to the orbital laboratory to replace NASA astronaut Norman Thagard. STS-76 also carried a SPACEHAB single module along with Lucid, and on flight day 6, Linda M. Godwin and Michael R. Clifford performed the first U.S. spacewalk around two docked spacecraft since the last Skylab mission in 1974. Crew Spacewalks * '' Godwin and Clifford '' – EVA 1 * EVA 1 Start: 27 March 1996 – 06:34 UTC * EVA 1 End: 27 March 1996 – 12:36 UTC * Duration: 6 hours, 02 minutes Missio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
STS-72
STS-72 was a Space Shuttle ''Endeavour'' mission to capture and return to Earth a Japanese microgravity research spacecraft known as Space Flyer Unit (SFU). The mission launched from Kennedy Space Center, Florida on 11 January 1996. Crew Spacewalks * '' Chiao and Barry '' – EVA 1 *EVA 1 Start: 15 January 1996 – 05:35 UTC *EVA 1 End: 15 January – 11:44 UTC *Duration: 6 hours, 9 minutes * '' Chiao and Scott '' – EVA 2 *EVA 2 Start: 17 January 1996 – 05:40 UTC *EVA 2 End: 17 January – 12:34 UTC *Duration: 6 hours, 54 minutes Mission highlights STS-72, the 74th flight of the Space Shuttle program and the 10th of the orbiter ''Endeavour'' was launched at 4:41AM EST 11 January 1996 after a brief hold at the T-5-minute mark due to communication issues. The nighttime launch window was in support of the mission's primary objective, the capture and return to Earth of a Japanese microgravity research spacecraft known as Space Flyer Unit (SFU). The SFU was launched by Japan's ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ionosphere
The ionosphere () is the ionized part of the upper atmosphere of Earth, from about to above sea level, a region that includes the thermosphere and parts of the mesosphere and exosphere. The ionosphere is ionized by solar radiation. It plays an important role in atmospheric electricity and forms the inner edge of the magnetosphere. It has practical importance because, among other functions, it influences radio propagation to distant places on Earth. History of discovery As early as 1839, the German mathematician and physicist Carl Friedrich Gauss postulated that an electrically conducting region of the atmosphere could account for observed variations of Earth's magnetic field. Sixty years later, Guglielmo Marconi received the first trans-Atlantic radio signal on December 12, 1901, in St. John's, Newfoundland (now in Canada) using a kite-supported antenna for reception. The transmitting station in Poldhu, Cornwall, used a spark-gap transmitter to produce a signal with a freq ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NASA
The National Aeronautics and Space Administration (NASA ) is an independent agency of the US federal government responsible for the civil space program, aeronautics research, and space research. NASA was established in 1958, succeeding the National Advisory Committee for Aeronautics (NACA), to give the U.S. space development effort a distinctly civilian orientation, emphasizing peaceful applications in space science. NASA has since led most American space exploration, including Project Mercury, Project Gemini, the 1968-1972 Apollo Moon landing missions, the Skylab space station, and the Space Shuttle. NASA supports the International Space Station and oversees the development of the Orion spacecraft and the Space Launch System for the crewed lunar Artemis program, Commercial Crew spacecraft, and the planned Lunar Gateway space station. The agency is also responsible for the Launch Services Program, which provides oversight of launch operations and countdown management f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
