Scientists believe the 4-tonne abandoned section of a SpaceX rocket crashed into the Moon on August 5, at 8,700 kilometres per hour.
While an unplanned collision of the rocket's upper stage doesn't pose a danger to Earth, it raises questions around the issue of space junk affecting us, as humans launch more things into space than ever before.
There are more than 36,000 items of space debris in earth orbit, and an expert says the consequences of not dealing with them can be dire.
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