Start the day with music and a smile.

Adam Walton talks quarks and gluons with the Swansea team organising a major conference for the world's leading particle physicists.

Rachael Garside takes a splash into the unknown.

A service from Moriah Baptist Church in Risca led by the Rev Marc Owen.

Vaughan Roderick is joined by Mike Hedges AM, councillor Russell Goodway, Professor Matthew Goodwin, Charlotte McDonald-Gibson, Lord Menzies Campbell and Dr Celyn Gurden-Williams.

Sarah Rowland Jones explores the shifting religious landscape in Brazil, asking why Roman Catholicism is losing ground to other churches and to those of no religion at all.

Welsh-Italian writer Giancarlo Gemin talks to Roy Noble about his new children's novel, plus Bob Fannin discusses his upcoming sponsored cycle ride from Splott to Split.

Jamie presents strange news from around the world, live music, conversation and laughter.

Welsh politicians Peter Hain and Dafydd Wigley talk to former Conservative leader and ex-foreign secretary William Hague, who now sits across from them in the House of Lords.

Aled talks to broadcaster and ex-footballer Ray Stubbs.

Lynn Bowles is joined by Escape to the Country's Jules Hudson, who is also an archaeologist and expert in military history.

Music, comedy and more for Sunday afternoon.

Can the traditions and heritage of a nation really be built on the work of a forger? Gareth Gwyn sets out on the trail of Iolo Morganwg, stonemason, historian and fantasist. Show more

A service from Moriah Baptist Church in Risca led by the Rev Marc Owen.

Frank Hennessy presents the best in folk, roots and acoustic music from the Celtic nations and the world, plus he is joined by Gwilym Bowen Rhys, who chats about his new album.

Beverley Humphreys explores the vast array of musical performance going on across Wales and the world in music theatre, opera, choirs, bands and orchestras.

Alan Thompson talks to Dennis Greaves from Nine Below Zero, plus journalist Nick Dermody discusses Carole King.

BBC Radio Wales joins the BBC World Service for a selection of news and current affairs, science and arts programmes to take you through the night.