Tuesday sees Prof Brian Cox join Shaun for his weekly science chat.
Listen live (BBC Radio 6 Music homepage)
Mary Anne Hobbs sits in for Lauren Laverne with a session from Badly Drawn Boy.
Mark Radcliffe and Stuart Maconie are joined by Gaz Coombes.
Robin Ince attempts to guess the identity of a listener through their musical choices.
Marc Riley has a live session from Californian psych-garage band Fuzz.
Gideon Coe plays as many records as he can manage in three hours.
Tom curates an hour of his favourite new music.
1/2 Andy Peebles presents a profile of the American writers and producers.
Record producer Tony Visconti celebrates Blondie's classic 1979 single Heart of Glass.
The Earlies at Cambridge Junction in 2005, plus sessions from the Only Ones and Faithless.