Lunar geologist Katherine Joy tells Jim Al-Khalili why we need to go back to the moon.
Katherine Joy on moon rock
Robin Dunbar on why we have friends
Why do we have friends? Robin Dunbar tells Jim Al-Khalili.
Jonathan Ball on his arms race against viruses
Virologist Jonathan Ball talks to Jim Al-Khalili about his quest to disarm killer viruses.
John Connell talks about his powerful memoir of life on an Irish farm
Alan Stennett with farming community news, issues and prices.
BBC Yorkshire's favourite weatherman hosts a special about the weather in our county.
With Sue Kinnear
Find out why you might see trees growing amongst the crops at a farm near Swindon.
Science unwrapped - interactive science, medicine and technology.