Nasa wants its astronauts to be familiar with the smell of outer space before take-off
Space smells, according to astronauts who report bringing it back with them on their suits after a space walk.
Donald Roy Pettit is a NASA astronaut who has spent time on the International Space Station.
Listen Listen to Donald Roy Petit (50 secs)
Steven Pearce is a scientist who creates smells and flavours for food products, and Nasa have asked him to recreate the scent of space for training purposes.
The World Today's Rebecca Kesby asked him why smell was so important?
Listen Listen to Steve Pearce (3 mins 8 secs)
First broadcast 1 October 2008
