How Long Could You Survive Cut Off From Earth? | Summary and Q&A

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March 25, 2019
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How Long Could You Survive Cut Off From Earth?

TL;DR

Learn how to survive on the International Space Station (ISS) if you were trapped there without communication with Earth.

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Questions & Answers

Q: How does the ISS get its power?

The ISS is powered by solar arrays that efficiently convert solar energy into electrical power.

Q: Can astronauts repair the solar arrays if they get damaged?

Yes, astronauts have the ability to repair the solar arrays if they are ripped or bent.

Q: How long can astronauts survive on the ISS?

The duration largely depends on crew size and available supplies, but typically lasts months between supply runs.

Q: How is water conserved on the ISS?

The Water Reclamation System takes sweat and urine, purifies it, and makes it suitable for reuse, reducing the need for constant resupply.

Q: How do astronauts breathe on the ISS?

Oxygen is generated through systems like NASA's Oxygen Generation System and the Russian Elektron system, which create a loop of oxygen and water. A backup system called Vika is available if needed.

Summary & Key Takeaways

  • The ISS gets its power from solar arrays, which can be repaired if damaged, ensuring a continuous power source.

  • The number of people on board affects resource consumption, so adjusting supplies accordingly is crucial.

  • Food can last longer by cutting calories, and water and oxygen are recycled, although additional oxygen can be generated by backup systems.

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