🗑️ Space junk (space debris, space pollution, space waste, or space garbage) is defunct man-made objects in space (mainly in Earth orbit) that no longer serve a useful function.
👀 And here is how its number has changed over the past 60 years.
*As of January 2021, the US Space Surveillance Network reported 21,901 artificial objects in orbit above the Earth, including 4,450 operational satellites. However, these are just objects large enough to be tracked.
#spacejunk #satellites #earth
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