Shield could deflect destructive solar flares away from our planet Sign up to our free weekly IndyTech newsletter delivered straight to your inbox Sign up to our free IndyTech newsletter Sign up to our free IndyTech newsletter Email * SIGN UP I would like to be emailed about offers, events and updates from The Independent. Read our Privacy notice Chemicals fired from satellites at the edge of the Earth ’s magnetic field can act as “airbags” to shield the planet from devastating solar flares , a