What is Geocaching?

Ahead of this weekend's Geolympix, why are there millions of little plastic containers hidden all around the world?

'Spider' could keep an airship aloft

Lockheed Martin's Skunk Works has created a device which will help patch holes in airships

Banks turning to voice recognition

Voice as a form of secure ID is becoming more widespread, with Barclays announcing it is using the technology for telephone banking customers.

Tesla agrees $2.6bn deal to buy SolarCity

US electric carmaker Tesla says it has reached a deal to buy solar panel company SolarCity for $2.6bn.

Russia cyber attack: Large hack 'hits government'

A "professional" cyber attack hits Russian government bodies, the country's intelligence service says.

New head of Government Digital Service announced

Kevin Cunnington, the former director of business transformation at the Department for Work and Pensions, is appointed head of the Government Digital Service.

Uber plots global roadmap scan to help drivers

Uber embarks on a global mapping project that it hopes will offer its drivers more useful data on pick-up locations and traffic patterns.