A Nigerian start-up founder has created a device that he says can be used to detect the smell of explosives and even cancer cells.
It has hardly rained in Rome for months, so the city's water company is to lower supplies at night.
Sirens and security announcements echoed in the streets of northern Japan after North Korea launched its missile.
Host apologises for video accused of "casual racism" against Pacific Islanders.
Why a 15,000ft plunge in nothing but a harness was a particular triumph for one musician.
"There's no way to run from it, which is the biggest worry," one woman in Japan told the BBC.
New businesses hope scooters will be a popular alternative to walking in Singapore's heat.
How an ancient holy site is helping Yazidi former sex slaves recover from abuse by IS.
Record water levels are only expected to surge further following a huge storm in Texas.
American middle-distance runner David Torrence is found dead in a swimming pool in Arizona at the age of 31.
The social media titan has written about the magic of childhood in a letter to his newborn daughter.
The controversial Indian guru has been sentenced to 20 years in prison for raping two disciples.
Expert views on North Korea's missile test over Japanese territory and what it means for diplomacy.
Australia grew 500,000 oranges last year, but juicing companies say it was not enough.
Elderly New Zealanders are embracing a new pastime - designing their own coffins.
The anti-whaling group says it cannot match Japan's funding or surveillance technology.
A presidential executive order is signed which provides police with weapons and other equipment.
Footage appears to show Japanese warning alarms, after North Korea fired a missile over the country.
The US and the EU condemn a decision to expel a UN anti-corruption investigator from Guatemala.