The latest national and international news, exploring the day's events from a global perspective.
Peter Powell presents The Piranhas, Toyah, The Kids from Fame, Imagination, Kool and the Gang, Bauhaus, Spandau Ballet, Culture Club, Sharon Redd and Shakin' Stevens. Show more
Dr Helen Czerski peers into the heart of the storm to find out how advances in technology are giving new insight into tornadoes - the fastest winds on the planet. Show more
The latest scientific insights into icebergs, from side-scanning sonar scrutinising the edge of glaciers to pictures that give us a unique glimpse of how they transform over time. Show more
Simon Sebag Montefiore looks at the Habsburgs' rise to power and how Vienna marked Europe's front line in the struggle to defend both Christendom and the Catholic Church. Show more
Horizon discovers what your cat really gets up to as 50 cats from a village in Surrey are tagged with GPS collars and their every movement is recorded. Show more
Colour: The Spectrum of Science
Episode 2: Colours of Life
58 minutes on BBC Four HD
Available for years
The raw, early Earth had plenty of colour, but that canvas was about to be painted with a vast new palette - and the source of those colours was life. Show more
Documentary in which gardening expert Chris Beardshaw delves into the micro-world of soil to reveal what it is, how it works and why we couldn't survive without it. Show more
Peter Powell presents The Piranhas, Toyah, The Kids from Fame, Imagination, Kool and the Gang, Bauhaus, Spandau Ballet, Culture Club, Sharon Redd and Shakin' Stevens. Show more
Documentary which maintains that the real pioneers of space exploration were the Soviet cosmonauts, telling the story of how the Russians led us into the space age. Show more
Simon Sebag Montefiore looks at the Habsburgs' rise to power and how Vienna marked Europe's front line in the struggle to defend both Christendom and the Catholic Church. Show more