A geomagnetic storm watch has been issued for parts of the United States as a coronal mass ejection was observed to be lifting off the sun on Saturday. The Space Weather Prediction Center has issued a ...

Another round of auroras may put on a dazzling display across U.S. states this evening, so be sure to look up Elizabeth Ruggiero/Getty A powerful mass ejection (CME) from sunspot AR4199 is set to ...

Heads up aurora chasers! Powerful geomagnetic storm conditions could trigger northern lights at mid-latitudes overnight as a CME impact is detected and more could be on the way. Editor's note: Wow!