Scientists in California described how to create artificial auroras on Earth . They said a particle beam could be sent 500 miles up into earth . It would then fire high - energy beams back at Earth 's surface . This would create planets to study - and even types of lightning .
Scientists in California described how to create artificial auroras on Earth . They said a particle accelerator could be sent 185 miles up into space . It would then fire high-energy beams back at Earth 's atmosphere . This would create auroras to study - and even types of lightning .