The Ultimate Tightrope: A Step-by-Step Guide to an ISS Spacewalk (EVA)

The Ultimate Tightrope: A Step-by-Step Guide to an ISS Spacewalk (EVA) Skip to content Floating Humans Home How the International Space Station Keeps Astronauts Breathing The 400-Kilometer Commute: Life Inside the ISS The Ultimate Tightrope: A Step-by-Step Guide to an ISS Spacewalk (EVA) By Penny Waite · Nov 1, 2025 · Info last checked Nov 2025. General info only; avoid YMYL topics. 🧩 Incidents, Repairs & Governance — Tier 2 Series MISSION MAP The Personal Spaceship The Unseen Ascent Beating the Bends Crossing the Threshold Precision Labor AMS-02 “Microsurgery” ...

Living in Orbit (Overview)

ISS: How It Works — Pillar 1

Living in Orbit

How humans survive, adapt, and respond to emergencies aboard the International Space Station.

Code Red in Orbit

The ISS “stabilize & transport” medical doctrine — and where it breaks on a Mars mission.

The 400-Kilometer Commute

Sleep, food, hygiene, and sanity: the rhythms of daily life in microgravity.

How Do Astronauts Clean the ISS?

The hidden battle against dust, microbes, and floating crumbs inside a closed habitat.

The Ultimate Tightrope (EVA)

A step-by-step guide to spacewalking: prep, suits, tethers, and contingency plans.

How the ISS Life Support System Keeps Astronauts Breathing

Air, water, and CO₂ control when space wants you dead.

How the ISS Stays Alive

The fragile machine we keep saving — maintenance, risks, and hard-won resilience.