ABC News
A "severe" solar storm could make the northern lights visible in the U.S. farther south than usual while also posing the potential to disrupt modern technology, according to the National Oceanic and Atmospheric Administration. A fast-moving coronal mass ejection (CME) -- a powerful burst of magnetized plasma from the sun's corona -- erupted from the sun on Tuesday night, prompting NOAA's Space Prediction Center to issue a rare G4 geomagnetic storm watch, indicating "detrimental impacts" to critical technology and possible widespread voltage control problems, according to NOAA. The CME is expected to cause a moderate solar storm here on Earth on Thursday and Friday, according to NOAA.