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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). The ISS is the largest space station ever built.
The International Space Station programme is tied together by a complex set of legal, political and financial agreements between the fifteen nations involved in the project, governing ownership of the various components, rights to crewing and utilisation, and responsibilities for crew rotation and resupply of the International Space Station.
Rotating wheel space station. Wernher von Braun 1952 concept. A rotating wheel space station, also known as a von Braun wheel, is a concept for a hypothetical wheel-shaped space station. Originally proposed by Konstantin Tsiolkovsky in 1903, [1] the idea was expanded by Herman Potočnik in 1929, [2] and popularized by Wernher von Braun in 1952. [3]
The International Space Station is 26 years old. Born with Russia's launch of a Zarya power and propulsion module in 1998, the ISS today is comprised of 43 separate modules and other "elements ...
The International Space Station is in LEO about 400 to 420 kilometres (250 to 260 mi) above the Earth's surface. [13] The station’s orbit decays by about 2 km/month (1.2 mi/month) and consequently needs re-boosting a few times a year. The Iridium telecom satellites orbit at about 780 km (480 mi).
Bouncing ball in a rotating space station: The objective reality of the ball bouncing off the outer hull is confirmed both by a rotating and by a non-rotating observer, hence the rotation of the space station is an "absolute", objective fact regardless of the chosen frame of reference.
Small station-keeping orbital maneuvers were executed approximately monthly to maintain the spacecraft in the station-keeping orbit. [ 1 ] The James Webb Space Telescope will use propellant to maintain its halo orbit around the Earth-Sun L2, which provides an upper limit to its designed lifetime: it is being designed to carry enough for ten ...
Discovery undocked from the International Space Station's Harmony Module, at 11:42 UTC. Discovery then conducted a fly-by of the ISS, so pictures could be taken. Saying goodbye to the ISS and its crew, commander Kelly said "We wish them the best with their expedition and we hope we left them a better, more capable space station than when we ...