Experts assess the level of threat posed to life on Earth by megaflares from the sun. During cosmic firestorms, gamma rays are fired across the universe, and the Earth could be in the line of destruction. <br /><br />Thanks for watching. Follow for more videos. <br />#cosmosspacescience <br />#howtheunivreseworks <br />#cosmicfirestorms <br />#season2 <br />#episode4 <br />
