Loren Munk is unmissable. Dressed in white bespeckled painter’s pants, this 73-year-old artist shambles into New York’s galleries with a slightly crazed look. He walks around with his little camera, ...

Researchers mapped Earth’s ionosphere, part of the upper atmosphere, using signal data from 40 million phones – a method that ...

Is Google’s Local Guides program a rewarding community initiative or a flawed system? Explore its successes, failures and ...