The undercover cop, his lover, and their son
How to solve brain-teasers by one of the greatest maths minds
The day UFOs stopped play - and a crowd of 10,000 gasped
Life after university for disabled graduates
BBC Click looks at some of the week's technology highlights.
How one manufacturer is making its smartphone really stand out from the crowd.
A Scottish man trapped in India by a dispute over anti-piracy operations says he is struggling to support himself.
The Scottish government is to reduce the country's drink-drive limit in time for Christmas, making it lower than that south of the border.
More than 1,400 intelligence agency staff create a giant poppy in the centre of the GCHQ "doughnut" building in Cheltenham.
England's newest cricket star Moeen Ali speaks to the BBC about his sport and his religion.
Mosul diary: Inside the city ruled by Islamic State
Exposure to sunshine could slow down weight gain and the development of diabetes, research on mice suggests.
People living in Roman Britain had healthier gums than their modern-day descendants, a feat of archaeological dentistry shows.
Russell Brand speaks to Newsnight about his "alternative to corporate hegemony".
A new art gallery showing major works of art from Spain's "golden age" is to open in a former bank in Bishop Auckland, County Durham.
The handling of a police raid at the home of veteran pop star Sir Cliff Richard is described as inept by the Commons Home Affairs Committee.
Tottenham boss Mauricio Pochettino says Erik Lamela's Europa League wonder-strike was the best goal scored by one of his players.
Computer workstations, electronic signature pads and free wi-fi are rolling out across UK job centres.
Why big-eyed droids are cause for concern
Mali says a two-year-old girl - believed to have recently visited Guinea - becomes the country's first person to be infected by the deadly virus.