17 October 2016 Last updated at 12:14 BST
Tickets to the event at Glasgow's Science Centre sold out in just 23 minutes. His talk was broadcast on  screens across the building.
Tim Peake spent six months on the Principia mission and became the first UK astronaut to go on a spacewalk.
Glasgow Science Centre hosts Tim Peake event
British astronaut Tim Peake has told an audience of his fans in Glasgow about his time on the International Space Station.