Three solar flares will hit the Earth Thursday and Friday, according to scientists, possibly triggering a bigger show of the Aurora Borealis, also known as the northern lights. They may also impact the Earth’s magnetic field to some degree, depending on the direction of the magnetic field accompanying them. The flares have increased the density and velocity of the solar wind, Bernard Jackson of the University of California at San Diego, told TechNewsWorld. Further, they have led some airlines to reroute some of their so-called great circle flights.