Flight turbulence has increased as climate change has warmed the planet, researchers say. Scientists at Reading University in the UK studied clear-air turbulence, which is harder for pilots to avoid. They found that severe turbul...

  The US space agency Nasa has landed a new robot on Mars after a dramatic seven-minute plunge to the surface of the Red Planet. The InSight probe aims to study the world's deep interior, and make it the only planet - apart from Earth - t...