Facebook whistleblower to appear before UK Parliament
Former Facebook employee Frances Haugen will appear before MPs looking into regulating big technology.
Smart headbands claim to make people calmer. Do they work?
Devices that measure brainwaves are increasingly being used by athletes to improve their performance.
On patrol with a real-life Robocop
Police are using a robot to fight crime in Los Angeles.
Facebook apologises as services including Instagram hit again
The brief outage comes just days after Instagram, Facebook and WhatsApp went down for hours globally.
Facebook to act on illegal sale of Amazon rainforest
The social network changes its policy following a BBC investigation.
Google, YouTube ban ads on climate misinformation
The company says it will prohibit monetizing content which contradicts the science on climate change.