| UPDATED: 10:33, Wed, Mar 3, 2021 Link copied Sign up for FREE for the biggest new releases, reviews and tech hacks SUBSCRIBE Invalid email When you subscribe we will use the information you provide to send you these newsletters. Sometimes they'll include recommendations for other related newsletters or services we offer. Our Privacy Notice explains more about how we use your data, and your rights. You can unsubscribe at any time. The phenomenon was captured on Andrew Symonds’ dashcam as he exited the M5 motorway, heading south at junction 12, to the south of Gloucester. As he drove up the exit slip road towards the roundabout, the traffic lights and street lights were still working fine. Suddenly, the sky was illuminated with a giant flash of blue light. The flash lasted for only a few seconds and the street lamps and traffic lights instantly went out.