Exploring the psychological and social importance of play.
Clay Shirky; Inflatable screening for World Cup; Spy's digital toolkit
The kids take over One Planet to discuss forests, playing in woods and long term planning
Tracking the oil spill; NYC wildlife; Mountain pine beetle epidemic; International FameLab
In the battle to stop viral attacks on people and livestock, why isn't humankind winning?
Sound of the sun; Lasers' 50th anniversary; E3 Games Expo; Cell-Life
4/4 In his final Reith lecture, Martin Rees urges the UK to stay at the forefront of science.
Mike considers living forever. We hear from elderly and young. Plus we debate food miles
ROVs track deep-water life; Oil threatens marshlands; Ascension fern; Scary movie sounds
Jon Stewart visits the Deepwater Horizon rig site to meet scientists studying the spill.