Add Yahoo as a preferred source to see more of our stories on Google. "Sunspots 4114 erupted with an X1.2-class solar flare. Minutes lates, sunspot AR4115 "erupted in quick succession," according to ...

Upon impact, it unleashed a severe G4-class geomagnetic storm, as confirmed by Noaa's Space Weather Prediction Center.

A historic S4-severe solar radiation storm triggered rare auroral displays over the high-altitude desert of Ladakh. This record-breaking event surpassed the 2003 Halloween storms and provided a rare ...