Tag Archives: defence

Tracking space junk

Algorithms normally used to track aircraft, ships and other vehicles are being used to monitor space junk and predict where it will go.

Currently the US Department of Defense tracks around 17,300 objects the size of a softball or larger, orbiting around the Earth at speeds of up to seven kilometres per second.

They can cause serious damage if they collide with something else. Last year a tiny paint fleck caused a crack in a window of the International Space Station.

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