The Rosetta spacecraft has discovered molecular oxygen in the cloud of gas surrounding the comet it is tracking.

Google believes it is on course to have enough internet-beaming balloons in the stratosphere to form a ring over part of the world next year.

A new chat tool has been launched in an effort to improve the security of online messaging.

Brain training - playing online games that give memory and reasoning skills a workout - is beneficial for older people, a large-scale study has concluded.

You can see why online charter schools in the United States were seen as the next big thing.

Russia should be banned from athletics competition, a World Anti-Doping Agency commission report has recommended.

In a frenetic commercial district of Hong Kong, sandwiched between shops selling vitamins and clothing to tourists, the Causeway Bay Bookstore touts itself as the authority on Chinese politics.

Conservationists in New Zealand say nest numbers for one of the world's most endangered penguins have plummeted to a 25-year low.

Europe's open borders were already under strain from the refugee crisis.

For Catherine Nguyen-Cat, the struggle to find a job has been “mostly a confidence issue”.