Flying after migratory birds, an unsung female astronomer, and another final paper from Stephen Hawking

This week, Chris reads yet another of Stephen Hawkings final papers, this one on the black hole information paradox; Claire speaks to Amelia Formby, who is planning a micro-light plane journey in honour of migratory shorebirds; and Stu tells us about astronomer Cecilia Payne, who worked out what stars are made of but didn't get enough credit for it.