麻豆约拍

Japan has launched a cargo ship that will use a 700m-long tether to remove some of the vast amount of debris orbiting the Earth. Dr Stuart Grey works for the University of Strathclyde in Scotland and told Newsday what kind of junk can be found in space.

(Photo: Japan Aerospace Exploration Agencys Kounotori H-II Transfer Vehicle. Credits: NASA/AFP/Getty Images)