Nasa confirms Mars rover Opportunity is dead

Robot the size of a golf buggy has sent data to Earth for 15 years but fell silent eight months ago and Nasa says mission is complete

Nasa declared the 15-year mission of the veteran Mars rover Opportunity finally over on Wednesday, crediting the robot as having "transformed our understanding of our planet".

The golf buggy-sized vehicle last made contact with Earth eight months ago, after being caught in a global dust storm.