George Pell: Cardinal to return to Rome for first time since acquittal

image copyrightGetty Images image captionCardinal Pell had his child abuse conviction quashed by Australia’s top court in April Cardinal George Pell will return to Rome this week for the first…

Ai Weiwei: ‘Too late’ to curb China’s influence

Media playback is unsupported on your device Media caption“I can sacrifice everything… people die, or pass away” The leading Chinese dissident, the artist and filmmaker Ai Weiwei, says China’s influence…

The robot smaller than the width of a hair

Scientists at Cornell University have created a tiny micro-robot that “walks” using four legs. Invisible to the naked eye, 10 of the computer chip bots could fit within the full…