If you've seen Gravity, you'll have noticed how a single piece of space debris can cause a cascade of destruction -- the Kessler effect -- that makes the entirety of space completely uninhabitable to spacecraft? Well, in the photo above, you can see the exit hole created by a tiny piece of aluminium space debris in a piece of Kevlar shielding -- the same shielding that protects the manned modules of the International Space Station. Space debris is serious stuff.
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