Jim Al-Khalili meets Mr Trilobite, the palaeontologist and naturalist, Richard Fortey.
BBC World Service
7/30 Ptolomy wrote 13 volumes listing over 1000 stars and 48 constellations around AD150.
BBC Radio 4 Extra
2/5 Griff visits the Lake District. (R)
BBC Two except Wales
BBC Two Wales only
4/4 Michael Blastland and the Zoo team look ahead to the general election.
BBC Radio 4
7/31 Nick Crane ventures out into the Portland tidal race. (R)
Adam Walton serves up another slice of Welsh science and technology.
BBC Radio Wales
Technological and digital news from around the world.
The Inquiry gets beyond the headlines to explore the trends, forces and ideas shaping t...
Documentary tracing David Attenborough's lifelong passion for birds of paradise.
BBC Two Scotland only