Skylab space station launched: Tech Time Machine

The International Space Station (ISS) orbits around Earth every 92 minutes, carrying a clutch of astronauts along with it. Without earlier space stations, such as the US' Skylab and Russia's Mir, mankind may not have had a permanent station in space.

On the anniversary of the launch of America's first space station, Skylab, find out about Skylab's fraught life orbiting Earth on today's edition of Tech Time Machine.