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International Space Station

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International Space Station

The International Space Station is a collaborative project between five space agencies: NASA, Roscosmos, JAXA, ESA, and CSA; and 16 nations. The Space Station serves as a floating laboratory in Low-Earth orbit. First launched in 1998, the station has been continually occupied by humans since 2000 and sees continual updates.

Partner Nations and Space Agencies

The International Space Station, in its name, is an international cooperation between both space agencies and nations. All these nations support funding for maintaining and providing experiments and crew for the station.

List of member agencies

  • NASA
  • Roscosmos
  • ESA
  • JAXA
  • CSA

List of partner nations

  • Belgium
  • Denmark
  • France
  • Germany
  • Italy
  • Netherlands
  • Norway
  • Spain
  • Sweden
  • Switzerland
  • United Kingdom
  • United States of America

Spacecraft that support space station operations

Crew Spacecraft

SpacecraftCountryCrew CapacityRocketStatus
CST-100 StarlinerUS (Boeing)4 crew membersAtlas VIn Development
Crew DragonUS (SpaceX)4 crew membersFalcon 9Operational
SoyuzRussia3 crew membersSoyuzOperational
Space ShuttleUS8 crew membersSpace ShuttleRetired

Cargo Spacecraft

SpacecraftCountryCargo CapacityRocketStatus
Dream ChaserUS (Sierra Space)5,500 kg to ISS; 1,750 kg returnedVulcanIn Development
HTV-XJapan7,200 kg to ISSH3In Development
ProgressRussia2,400 kg to ISS;SoyuzOperational
CygnusUS (Northrop Grumman)2,000 kg to ISS;Antares / Atlas VOperational
Dragon 2US (SpaceX)6,000 kg to ISS; 3,000 kg returnedFalcon 9Operational
H-II Transfer VehicleJapan6,000 kg to ISS;H-IIBRetired
DragonUS (SpaceX)6,000 kg to ISS; 3,000 kg returnedFalcon 9Retired

Rockets which launch Space Station modules

RocketVehicle CountrySegments LaunchedVehicle Status
ProtonRussiaZarya, Zvezda, NaukaOperational
SoyuzRussiaPirs, PoiskOperational
Space ShuttleUnited StatesUnity, Destiny, Harmony, Columbus, Rassvet, Leonardo, Quest, Tranquility, Cupola, JEM-ELM-PS, JEM-PMRetired
Falcon 9United StatesBEAM Operational
Rockets that have launched Space Station modules

No, Russia will not leave an American astronaut on the space station, but things might get awkward

Rumors circulated Monday after Dmitry Rogozin, Roscosmos’ Directer-General, posted on his Telegram channel that the Russians would not bring NASA Astronaut Mark Vande Hei back down from the space station. However, cooperation continues between the two agencies behind the scenes to ensure the partnership does not cease.

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Debris risk to astronauts pushes back planned spacewalk and ISS antenna repair to Thursday

A pair of astronauts planned to conduct a spacewalk outside of the International Space Station on Tuesday, but NASA delayed the plan to repair a faulty antenna system. The scheduled spacewalk was pushed back due to the risk of debris endangering astronauts Thomas Marshburn and Kayla Barron.

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Russia has put its own cosmonauts and NASA/ESA astronauts at risk after Anti-Satellite test [Updated: Statements by Nelson and Rogozin]

Monday morning, Russia conducted an Anti-Satellite (ASAT) test against one of its satellites, Kosmos 1408. Now the International Space Station is going through multiple debris field passes.


Updated with statements from NASA Administrator Bill Nelson, Roscosmos Director Dmitry Rogozin, US Space Command, and the US Department of State.

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NASA Administrator ‘Outraged’ by Russia’s ‘reckless, dangerous’ anti-satellite test

As we reported, on Monday morning, the International Space Station residents quickly retreated to their spacecraft as the station underwent emergency procedures. A Russian anti-satellite test created a massive field of debris in orbit, putting Astronauts and Cosmonauts at risk.

Now, NASA Administrator Bill Nelson has released a statement condemning Russia’s actions.

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Live Thread: SpaceX’s Crew-3 to dock with the International Space Station [Update: Crew now onboard the ISS]

After a successful launch late Wednesday night, SpaceX’s Crew-3 is preparing to dock with the International Space Station Thursday afternoon. Read below for live updates as SpaceX’s Dragon Endurance, with Crew-3, works towards docking.

Docking to ISS: 6:33 p.m. EST

Hatch Opening: 8:45 p.m. EST

Welcome Ceremony: 9:20 p.m. EST

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Live Thread: SpaceX Crew-2 is returning home today, here is how to keep track of them [Update: Coverage of splashdown has ended]

spacex crew-2 on iss

SpaceX and NASA are planning to undock Crew-2 and their Crew Dragon Endeavour and return to Earth today. This will conclude a six-month stay on the International Space Station for the four astronauts.

ISS Departure: Monday, November 8, 2:05 p.m. EST

Splashdown: Monday, November 8, 10:33 p.m. EST

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How long can SpaceX’s Dragon Capsule stay in space?

Spacecraft continue to advance, and one of the latest new spacecraft to enter operation is SpaceX’s Dragon capsule. As Crew-3 prepares for launch to the station, Crew-2 needs to return home, and Crew-2’s Dragon capsule is nearing the limit for continuous-time in space. But what is that limit, and why is the spacecraft limited?

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NASA looking at returning Crew-2 before launch of next SpaceX crewed mission

NASA has delayed the launch of Crew-3 to no sooner than Monday, November 8, at 9:51 p.m. due to poor weather conditions locally and in abort zones. NASA also stated that they will now look at returning Crew-2 as soon as this Sunday, November 7, confirming our speculations earlier this week.

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How does Crew-3’s launch delay affect Crew-2’s departure from the International Space Station?

We’ve seen not one but two delays now for SpaceX’s Crew-3 mission. While we hope for a speedy recovery for the crew member who suffered from the “minor medical issue,” we have to ask, What does this mean for the return home for Crew-2, the current residents of the ISS?

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