Once again I'll mention "A Time Odyssey" series by Arthur C. Clarke and Stephen Baxter and to be exact, the second book in the series Sunstorm. In which Earth i

Once again I'll mention "A Time Odyssey" series by Arthur C. Clarke and Stephen Baxter and to be exact, the second book in the series Sunstorm. In which Earth is preparing to mitigate - as much is possible, a massive solar eruption with megascale engineering projects. The major outer space idea is to reflect this eruption with a giant shield made of Fresnel lenses fully built in space and installed at Lagrange 1 point