Our planet might be hit by another massive solar flare Monday, following multiple northern lights sightings across the U.S. on Sunday night.

There is a 30 percent chance of an X-class solar flare hitting us on October 7, and a 75 percent chance of an M-class flare being seen, due to the Earth being in the “crosshairs” of six volatile sunspots on the sun’s surface.

This comes as 14 U.S. states caught a glimpse of the northern lights on Sunday night, thanks to a G1 to G2-strength geomagnetic storm.