Canyons, craters and mountains: The spectacular Martian terrain carved by swathes of water
The latest business and finance news from around the world, on the BBC.
US Senators meet a Yemeni man whose village was targeted by a drone
Why do we live with cats and dogs?
From communication and contemplation to obedience and shame, we explore silence
Gwyneth Paltrow wants to know what Justin Bieber looks like in the steam room
How the oil boom in Azerbaijan has assisted and hindered the country's economic progress.
South African radio host Redi Tlhabi on her childhood friendship with a gangster & rapist
Catrin Nye explores the exorcisms taking place in Britain's South Asian communities.
India pursues nuclear power and a bottle of whisky turns up after 70 years at sea.
Why do we cry and why are emotional tears a uniquely human trait?
Tuesday 7 May 2013