Nasa concerned about future of Opportunity rover as huge storm takes over Mars

Nasa is keeping close watch on the Opportunity rover in hope that it will wake up again. The until now unstoppable robot has run into trouble as it moves around the surface of Mars. The red planet is rapidly being encircled by a vast and unprecedented dust storm, meaning that it could be months until there is enough light to charge the rover's batteries and wake it back up again. Officials say they are hopeful the rover will make it through. But there will be no way to know until Opportunity wakes back up again – or doesn't, leaving it dead on the planet's surface.