Solar storm could bring auroras, power and telecoms disruptions

A huge solar storm is heading for Earth, supercharging auroras and bringing possible disruptions to satellites and power grids as early as Friday evening, US officials say. Unlike solar flares, which travel at the speed of light and reach Earth in around eight minutes, CMEs travel at a relatively more sedate pace, with officials putting the current average at 800 kilometers (500 miles) per second.