Space Hazards: Debris, Radiation & Surviving the Void | SPACETIME Full Documentary

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Technology Weird Science SPACETIME Science Show Ulrich Walter space hazards space debris micrometeoroids MMOD Whipple shield Kessler Syndrome ISS

Space is breathtaking—and lethal.
In this SPACETIME special, astronaut Prof. Ulrich Walter explains what really threatens crews and spacecraft: the vacuum and extremes of temperature, cosmic and solar radiation, and man-made space debris racing through orbit. See how engineers defend the ISS and future missions with shielding, avoidance maneuvers, hardening, procedures, and risk math.

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What You’ll See

Space debris & micrometeoroids (MMOD): tracking, Whipple shields, and ISS avoidance burns

The Kessler Syndrome concern and why congestion in LEO matters

Radiation realities: solar flares, CMEs, cosmic rays, Van Allen belts, exposure limits

Life-support risks: fire, air leaks, contamination, and how crews train for emergencies

EVA dangers: tethering, suit integrity, spaghettification myth vs real hazards

Launch & re-entry risk: why ascent/descent are the most dangerous minutes

How mission controllers manage risk: redundancy, safe-havens, and abort modes

Chapters
0:00 Why Space Is Hostile
3:05 Debris 101: MMOD & Shielding
7:30 ISS Collision Avoidance & Risk
12:00 Solar Storms, CMEs & Space Weather
16:20 Cosmic Rays, Doses & Protection
20:45 Life Support: Fire, Leaks & Contamination
25:10 Spacewalks: Suits, Tethers & Procedures
29:20 Launch/Re-entry: Managing Peak Risk
32:10 What We’re Building Next to Stay Safe

Details & Keywords
SPACETIME Science Show, Ulrich Walter, space hazards, space debris, micrometeoroids, MMOD, Whipple shield, Kessler Syndrome, ISS, EVA, solar flare, coronal mass ejection, space weather, cosmic radiation, Van Allen belts, life support, orbital mechanics, launch risk, reentry risk, space safety documentary

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