蜜芽传媒

Space is full of junk left over from past space missions: from flecks of paint to used rockets, dead satellites, also debris from past collisions of space junk. This junk is speeding around the Earth at several thousand miles per hour. At those speeds even small pieces of rubbish just fractions of a millimetre across can damage communication satellites which are vital for the web, mobile phones, and satellite navigation on earth. Dr Adam Rutherford finds out more.

First broadcast on 蜜芽传媒 Inside Science, 8 July 2016.