Angel has developed a diffraction pattern by etching onto a lens , which will deflect the Sun 's rays .
Attempting to create a 100,000 - square - mile ( 260,000 km ) sunshade by placing trillions of lenses in space , led by astronomer and professor Roger Angel .
professor has developed a diffraction pattern by etching onto a lens , which will deflect the Sun 's rays .
Attempting to create a 100,000 - square - mile ( 260,000 km ) sunshade by placing trillions of lenses in space , led by astronomer and professor Roger Angel .