Scientists develop space harpoon

Olivia Paterson reports on the development of a space harpoon to get rid of orbiting space junk.

This Astrium animation shows how the space harpoon might work.

Scientists at Astrium in Stevenage test fire the space harpoon.

Scientists from Satellite firm Astrium in Stevenage have developed a hi-tech harpoon which is designed to remove junk from space.