Weekend Woman's Hour

Michelle Knight on being held prisoner for 11 years in Cleveland, Ohio suffering unimaginable cruelty at the hands of Ariel Castro. She tells Jenni about how she managed to survive the ordeal and come out of it stronger than ever.

We discuss the campaign to get the name and occupation of mothers as well as fathers on marriage certificates. Caroline Criado Perez tells us why she thinks it's so important. And family historian and records specialist Audrey Collins explains the document's history.

Ben Brooks-Dutton's wife was knocked down and killed by a car. He describes how he has helped his young son cope and why he decided to share his grief with others on his blog.

Nasa's chief scientist Dr Ellen Stofan on growing lettuce in space and the latest on the mission to Mars. South African opera star Pretty Yende on the TV advert that inspired her and changed her life. Laura Wilson and Liz Calder on the appeal of Patricia Highsmith. An archive recording of telegraphist Annie May Martin on her role in the Women's Army Auxiliary in 1918 and the Imperial War Museums project to create a digital memorial to mark the lives of more than 8 million people in WW1.

Music from First Aid Kit.