Ernie Rea returns with a new series of Radio 4's discussion programme in which guests from different faith and non-faith perspectives debate the challenges of today's world.

Each week a panel is assembled to represent a diversity of views and opinions, which often reveal hidden, complex and sometimes contradictory understandings of the world around us.

In this programme, the first in a new series, Ernie and guests discuss the supernatural and ask whether there are always rational explanations for the apparently inexplicable.

Why does belief in the supernatural appear to have increased in recent years? Can it be explained by an increase in visibility in books, television and the internet or could our fascination with ghosts, spirits and the hereafter be filling a void left by organised religion.

The panellists hear from a medium and paranormal investigator who claims to have daily visions and has helped police forces solve murder cases.

Joining Ernie to discuss the supernatural are Gordon Smith, one of Britain's best known psychic mediums, the Reverend Anthony Delaney, pastor of Ivy Church in Manchester and Professor Christopher French, head of the Anomalistic Psychology Research Unit in the Department of Psychology at Goldsmiths College, London.

Producer: Karen Maurice.