Mars atmosphere findings hint at fate of liquid water on red planet

Nasa reveals that Mars has its own northern lights and loses atmosphere with surprising speed, which could explain how the planet became dry

Mars has its own northern lights, a varied and changeable atmosphere and a history probably shaped by solar eruptions and magnetic "tendrils", Nasa announced on Thursday, as it unveiled research that hinted at the fate of liquid water on the planet.

Related: Nasa scientists find evidence of flowing water on Mars