How Space Junk Can Impair The Pentagon's Space Operations

Orbital Debris The dots on this NASA-generated chart represent known pieces of large orbital debris. NASA

Pentagon: A Space Junk Collision Could Set Off Catastrophic Chain Reaction, Disable Earth Communications -- Popular Science

Every now and again someone raises a stern warning about the amount of space junk orbiting Earth. Those warnings are usually met with general indifference, as very few of us own satellites or travel regularly to low Earth orbit. But the DoD's assessment of the space junk problem finds that perhaps we should be paying attention: space junk has reached a critical tipping point that could result in a cataclysmic chain reaction that brings everyday life on Earth to a grinding halt.

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My Comment: Wow .... 370,000 pieces of junk up there versus 1,100 satellites .... that is a lot of junk.