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S6 Truss
The Integrated Truss Structure (ITS) of the International Space Station (ISS) consists of a linear arranged sequence of connected trusses on which various unpressurized components are mounted such as logistics carriers, radiators, solar arrays, and other equipment. It supplies the ISS with a bus architecture. It is approximately 110 meters long and is made from aluminium and stainless steel. Truss components All truss components were named after their planned end-positions: Z for zenith, S for starboard and P for port, with the number indicating the sequential position. The S0 truss might be considered a misnomer, as it is mounted centrally on the zenith position of ''Destiny'' and is neither starboard nor port side. Manufacturing ISS truss segments were fabricated by Boeing in its facilities at Huntington Beach, California (formerly McDonnell Douglas), Michoud Assembly Facility in New Orleans, Louisiana, Marshall Space Flight Center in Huntsville, Alabama, and in Tulsa, O ...
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ISS Solar Arrays + Truss View
The International Space Station (ISS) is a large space station that was Assembly of the International Space Station, assembled and is maintained in low Earth orbit by a collaboration of five space agencies and their contractors: NASA (United States), Roscosmos (Russia), European Space Agency, ESA (Europe), JAXA (Japan), and Canadian Space Agency, CSA (Canada). As the largest space station ever constructed, it primarily serves as a platform for conducting scientific experiments in microgravity and studying the space environment. The station is divided into two main sections: the Russian Orbital Segment (ROS), developed by Roscosmos, and the US Orbital Segment (USOS), built by NASA, ESA, JAXA, and CSA. A striking feature of the ISS is the Integrated Truss Structure, which connect the station’s vast system of solar panels and Spacecraft thermal control, radiators to its pressurized modules. These modules support diverse functions, including scientific research, crew habitation, ...
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Tulsa, Oklahoma
Tulsa ( ) is the List of municipalities in Oklahoma, second-most-populous city in the U.S. state, state of Oklahoma, after Oklahoma City, and the List of United States cities by population, 48th-most-populous city in the United States. The population was 413,066 as of the 2020 United States census, 2020 census. It is the principal municipality of the Tulsa Metropolitan Area, Tulsa metropolitan area, a region with 1,034,123 residents. The city serves as the county seat of Tulsa County, Oklahoma, Tulsa County, the most densely populated county in Oklahoma, with Urban Development, urban development extending into Osage County, Oklahoma, Osage, Rogers County, Oklahoma, Rogers and Wagoner County, Oklahoma, Wagoner counties. Tulsa was settled between 1828 and 1836 by the Lochapoka band of Creek people, Creek Native Americans, and was formally incorporated in 1898. Most of Tulsa is still part of the territory of the Muscogee (Creek) Nation. Northwest Tulsa lies in the Osage Nation wh ...
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Ad Astra Rocket Company
The Ad Astra Rocket Company, a U.S. Delaware corporation, is a rocket propulsion company dedicated to the development of advanced plasma rocket propulsion technology. Located in Webster, Texas, three miles away from NASA's Johnson Space Center, and in Liberia, Costa Rica, the company was incorporated on January 14, 2005. The President and CEO of Ad Astra Rocket Company is retired astronaut Franklin Chang-Díaz.Ad Astra Rocket Company – About us
company website, accessed 2010-03-10
The company has been working on Chang-Díaz's concept of the Variable Specific Impulse Magnetoplasma Rocket, known by its acronym VASIMR. The VASIMR is intended to achieve several advantages over current chemical rocket designs, including ...
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STS-98
STS-98 was a 2001 Space Shuttle mission to the International Space Station (ISS) flown by Space Shuttle Atlantis, Space Shuttle '' Atlantis''. It was the first human spaceflight launch of the 21st century. STS-98 delivered to the station the Destiny (ISS module), ''Destiny'' Laboratory Module. All mission objectives were completed and the shuttle reentered and landed safely at Edwards Air Force Base on 20 February 2001, after twelve days in space, six of which were spent docked to the ISS. Crew Crew seat assignments Launch attempts Mission highlights The crew continued the task of building and enhancing the International Space Station by delivering the U.S. Destiny Laboratory Module, ''Destiny'' Laboratory Module. It was the first NASA lab to be permanently used since the days of Skylab nearly three Decade, decades earlier. It was manufactured by Boeing at the Michoud Assembly Facility and the Marshall Space Flight Center in 1997. Upon transport to Kennedy Space Cente ...
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Pressurized Mating Adapter
A Pressurized Mating Adapter (PMA) is a component used on the International Space Station (ISS) to convert the Common Berthing Mechanism (CBM) interface used to connect ISS modules to an APAS-95 spacecraft docking port. Three PMAs are attached to the US Orbital Segment of ISS. PMA-1 and PMA-2 were launched along with the ''Unity'' module in 1998 aboard STS-88; PMA-3 was launched in 2000 aboard STS-92. PMA-1 permanently connects the ''Unity'' and '' Zarya'' modules. International Docking Adapters were permanently installed on PMA-2 and PMA-3 in 2017 to convert them from the APAS-95 standard to the newer International Docking System Standard (IDSS). Design and history Its origins lie in designs for the Pressurized Docking Mast, consisting of an off-axis frustoconical docking tunnel contained within a framework and a retractable coupling mechanism, later part of the Pressurized Berthing Adapter assembly that appeared in designs for Space Station Freedom 1987, and the reduced d ...
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Common Berthing Mechanism
The Common Mechanism (CBM) connects habitable elements in the US Orbital Segment (USOS) of the International Space Station (ISS). The CBM has two distinct sides that, once mated, form a cylindrical wiktionary:vestibule, vestibule between modules. The vestibule is about long and across. At least one end of the vestibule is often limited in diameter by a smaller wiktionary:bulkhead, bulkhead penetration. The elements are maneuvered to the berthing-ready position by a . Latches and bolts on the active CBM (ACBM) side pull wiktionary:fitting#Nouns, fittings and nut plate, floating nuts on the passive CBM (PCBM) side to align and join the two. After the vestibule is pressurized, crew members clear a passage between modules by removing some CBM components. Utility connectors are installed between facing bulkheads, with a closeout panel to cover them. The resulting tunnel can be used as a loading dock, loading bay, admitting large payloads from visiting cargo spacecraft that would no ...
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Plasma Contactor
Plasma contactors are devices used on spacecraft in order to prevent accumulation of electrostatic charge through the expulsion of plasma (often Xenon). An electrical contactor is an electrically controlled switch which closes a power or high voltage electrical circuit. A plasma contactor changes the electrically insulating vacuum into a conductor by providing movable electrons and positive gas ions. This conductive path closes a phantom loop circuit to discharge or neutralize the static electricity that can build up on a spacecraft. Space contains regions with varying concentrations of charged particles such as the plasma sheet, and a static charge builds up as the spacecraft moves between these regions, or as the electrical potential varies within such a region. Static electricity may also build up on a spacecraft as a result of space radiation, including sunlight, depending on the materials used on the surfaces of the spacecraft. A plasma contactor is mounted on the Z1 ...
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Control Moment Gyroscope
A control moment gyroscope (CMG) is an attitude control device generally used in spacecraft attitude control systems. A CMG consists of a spinning rotor and one or more motorized gimbals that tilt the rotor’s angular momentum. As the rotor tilts, the changing angular momentum causes a gyroscopic torque that rotates the spacecraft. Comparison with Reaction Wheels CMGs and reaction wheels are two common types of spacecraft attitude control actuators and serve the same function, though they differ in mechanics and performance characteristics. The latter apply torque simply by changing rotor spin speed, but the former tilt the rotor's spin axis without necessarily changing its spin speed. CMGs are more mechanically complex than reaction wheels and typically more expensive, but are far more power efficient. For a few hundred watts and about 100 kg of mass, large CMGs have produced thousands of newton meters of torque. A reaction wheel of similar capability would require meg ...
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STS-92
STS-92 was a Space Shuttle mission to the International Space Station (ISS) flown by Space Shuttle '' Discovery''. STS-92 marked the 100th mission of the Space Shuttle and Discovery's 28th flight. It was launched from Kennedy Space Center, Florida, 11 October 2000. Crew Spacewalks ;EVA 1 *Personnel: Chiao and McArthur *Start: 15 October 2000 – 14:27 UTC *End: 15 October 2000 – 20:55 UTC *Duration: 6 hours, 28 minutes ;EVA 2 *Personnel: López-Alegría and Wisoff *Start: 16 October 2000 – 14:15 UTC *End: 16 October 2000 – 21:22 UTC *Duration: 7 hours, 7 minutes ;EVA 3 *Personnel: Chiao and McArthur *Start: 17 October 2000 – 14:30 UTC *EVA 3 End: 17 October 2000 – 21:18 UTC *Duration: 6 hours, 48 minutes ;EVA 4 *Personnel: López-Alegría and Wisoff *Start: 18 October 2000 – 15:00 UTC *End: 18 October 2000 – 21:56 UTC *Duration: 6 hours, 56 minutes Crew seat assignments Mission highlights STS-92 was an ISS assembly flight that brought the Z1 truss, ...
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ISS Unity And Z1 Truss Structure From STS-92
The International Space Station (ISS) is a large space station that was assembled and is maintained in low Earth orbit by a collaboration of five space agencies and their contractors: NASA (United States), Roscosmos (Russia), ESA (Europe), JAXA (Japan), and CSA (Canada). As the largest space station ever constructed, it primarily serves as a platform for conducting scientific experiments in microgravity and studying the space environment. The station is divided into two main sections: the Russian Orbital Segment (ROS), developed by Roscosmos, and the US Orbital Segment (USOS), built by NASA, ESA, JAXA, and CSA. A striking feature of the ISS is the Integrated Truss Structure, which connect the station’s vast system of solar panels and radiators to its pressurized modules. These modules support diverse functions, including scientific research, crew habitation, storage, spacecraft control, and airlock operations. The ISS has eight docking and berthing ports for visiting spa ...
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TIG Welding
Gas tungsten arc welding (GTAW, also known as tungsten inert gas welding or TIG, tungsten argon gas welding or TAG, and heliarc welding when helium is used) is an arc welding process that uses a non-consumable tungsten electrode to produce the weld. The weld area and electrode are protected from oxidation or other atmospheric contamination by an inert shielding gas (argon or helium). A filler metal is normally used, though some welds, known as ' autogenous welds', or ' fusion welds' do not require it. A constant-current welding power supply produces electrical energy, which is conducted across the arc through a column of highly ionized gas and metal vapors known as a plasma. The process grants the operator greater control over the weld than competing processes such as shielded metal arc welding and gas metal arc welding, allowing stronger, higher-quality welds. However, TIG welding is comparatively more complex and difficult to master, and furthermore, it is significantly slo ...
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