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

HP apologises after an error on its website lets shoppers buy expensive laptop computers for less than £2.

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

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

A mobile phone game that has caught the attention of the world also appears to have caused a breakthrough with autism sufferers, as the Victoria Derbyshire programme finds out.

How Ambarish Mitra, the boss of mobile phone app Blippar, went from living in an Indian slum to running a technology business worth $1.5bn.