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Space, GPS & MapsOrbital Mechanics

Space Junk

One collision can create thousands of bullets in orbit

Thousands of satellites circle over your head right now. So what happens when two of them smash into each other?

You'll find out

  • How fast space junk really moves
  • Why one crash can lead to more
  • How satellites dodge and come down

Why it matters

Weather forecasts, maps and calls lean on satellites, and a cascade of junk could make some orbits unusable.

About 3 min6 interactive slides · 5 questionsLesson 212 · Zone 24

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