It's the source and sustainer of all life on Earth, but what do we really know about it?
The Sun, Our Star
The Sun, Our Star: Energy
How much energy can we get from the Sun?
The Sun, Our Star: Ancient sun
How the Sun’s light and heat inspired rituals dating back to the earliest humans
The Sun, Our Star: Space Weather
What effect could solar winds have on life on Earth?
The Sun, Our Star: Health and beauty
What does being deprived of sunlight do to you?
The History of Wastefulness
The History of Wastefulness: Today’s Trash Challenge
How our relationship with rubbish has evolved over time
My Perfect Country
Making a Difference
Can Japan’s gun control policies, Norway’s prisoner scheme and Uganda’s law scheme work?
The History of Wastefulness: Rubbish Through the Ages
Three historical landmarks that shaped modern attitudes to waste
The History of Wastefulness: The Tipping Point
Could the future be rubbish-free?
A foodie programme!
Jack looks set to get stomachs rumbling with this evening's show!
Game On - Gold masks and Green Poison
Games BAFTAs nominations discussed and The Division 2 goes under the tongue depresser.
Facial recognition technology to read pigs' emotions, red deer cull, Forestry Commission's writer in residence, and more
Scientists are developing technology to tell farmers how pigs are feeling.
Clean Air for Kids
Clean air - the fightback: Tom Heap investigates air pollution and children's health.
Dave Gorman and Stewart Lee consider a CD player/microwave oven combo.