Columbia reaches orbit. But astronaut Bob Crippen discovers that the shuttle has been damaged – can he and John Young make it home safely?

Parts of the heatshield to protect the shuttle from searing temperatures on re-entry to Earth have fallen off during the journey into space. This new heatshield has never been tested before in orbit. Could more tiles be missing?

https://www.bbc.co.uk/programmes/w3ct80bl