With Dr Lavinia Byrne.

Presented by Sarah Mukherjee.

With Sarah Montague and James Naughtie.
6.25, 7.25, 8.25 Sports News
7.48 Thought for the Day With Oliver McTernan.

Melvyn Bragg and his guests explore the history of ideas as they discuss the events and inspirations that have influenced our age.
Shortened repeat at 9.30pm

Melvyn Bragg discusses whether there are reasons to suppose that some form of life might exist beyond, or even within, our solar system and what our chances of ever discovering such a planet are. Show more

Jenni Murray hosts the programme from Manchester.
Drama: Just Plain Gardening. Part 4. Drama repeated at 7.45pm

Seven years after being paralysed by a sniper's bullet in Sarajevo, 27-year-old
Faruk Sabanovic has become an inspiration to many thousands like him, disabled by the war in Bosnia.
He has become a vociferous campaigner for their rights demanding equality and not pity.
George Arney meets this remarkable young man and asks whether Bosnia should take its cue from Faruk and finally become self-reliant.
And in the wake of September 11th, Arney also reports on the west's unease over the vast amounts of Saudi money being channelled into the country.

(Repeated Monday 8.30pm)

4: Still Learning.
In his nineties, Michelangelo famously declared, "I am still learning." Paul Vaughan concludes his investigation into creativity and ageing by talking with contemporary artists such as sculptor Anthony Caro and actor Lesley Phillips about continuing to change, develop and learn well into old age.

With Liz Barclay and Peter White.

With Nick Clarke.

Helen Mark meets the people and wildlife of the British countryside. Extended 6.10am

Repeated from yesterday 7pm

by Grant Buchanan Marshall. Darren is on extended weekend leave from the army, he has been away for 12 weeks and returns home to find that a special bond has developed between his girlfriend and his best mate. Suddenly, years of friendship are threatened by suspicion and jealousy.

The return of the weekly topical phone-in. Each week a columnist advances a controversial view on a topical subject, then listeners can take issue by telephone. Presented by David Jessel. Phone: [number removed]

Brian Blessed appeals on behalf of a charity which campaigns forthe protection and conservation of the National Parks of England and Wales. Producer Laurence Grissell
DONATIONS: Council for National Parks. [address removed]CREDIT CARDS: Freephone [number removed] 7.55am

3: Emily's Ring. The discovery of a ring inside a fish spins this story back 100 years to the tale of the original owner. A young woman looking after her stepbrothers and stepsisters takes them to bathe in the sea every day to aid their recovery from whooping cough, when tragedy strikes. Read byGillian Kearney. Producer Katherine Beacon

4: Signalling to Mars. Inspired by Arthur Ransome 's Winter Holiday, the four young fans attempt to find an igloo, visit the author's writing room and, using Ransome's own codes, try to signal to Mars. For details see Monday

Repeated from Sunday 4pm

It is not easy to forget the images of the atrocious conditions that thousands of refugees must endure every day. But a new refugee tent liner could help improve conditions and prevent thousands of deaths from hypothermia each year. Quentin Cooper meets the designers of the tent from the University of Cambridge and finds out how it could save lives. Producer Ros Smith E-MAIL: material.world@bbc.co.uk

With Eddie Mair and Carolyn Quinn.

Armando lannucci. Boasting one of the most enviable CVs in the comedy business, having been responsible for the award-winning On the Hour, The Day Today and Alan Partridge , Armando lannucci also reveals himself to be a wonderfully entertaining interviewee. Producer Mario Stylianides

William's a laughing stock.
Repeated tomorrow 2pm

Mark Lawson chairs the arts show. In tonight's programme he investigates how theatre technicians summon up the sound and fury of a storm. Producer Erin Riley

4: Iris Discovers Her Roots. In which Iris delves in unfamiliar ground.
For details see Monday Repeated from 10.45am

In recent months both Osama Bin Laden and George W Bush have invoked the myth of the Crusades, a myth central to the self-image of Islam and the West. The First Crusade began in 1095, and it was against all the odds that the Crusaders took Jerusalem.

Professor Chris Andrew imagines what might have happened had this expedition failed entirely. One plausible outcome is that Europe and indeed the USA might now share a much deeper Islamic heritage.

Feeling Fragile. This is a time of unsteady nerves. Security has been scarred by terror, complex technologies are threatened by viruses, economies are ruined by market fluctuations, and eco-systems imperilled bydisasters. Felipe Fernandez-Armesto asks whether the systems that are relied upon to avert disaster are too rigid or not tough enough.
Producer Ingrid Hassler Editor Nicola Meyrick Rptd Sunday 9.30pm

1: Ocean Revival. Can science bring back our fish? Tom Feilden reports. Producer Alasdair Cross

With Claire Bolderson.

9: Barbary slowly recovers and confronts her past. For details see Monday

As a prelude to the new series, another chance to hear globetrotting comedian and Just a Minute regular Ross Noble invade Budapest and Warsaw to entertain the locals with his unique brand of stand-up. In this comedy travelogue, he chats to the Mayor of Warsaw about furry hats, uncovers the truth about suicidal Hungarian monks, and even shares a curry with Poland's premiercomedian. Producer Danny Wallace

Another chance to hear the last of Mark Thomas 's series looking at the work of comedians who used humourto undermine authority in fifties America. 3: Lenny Bruce - How to Talk Dirty. A tribute to
America's most subversive stand-up comic, who riled the US establishment during the Cold War. Producer Paul Bajoria

Part 4. Repeated from 9.45am