Heads up people! If you have clear skies tonight, you might be lucky enough to witness one of nature's amazing wonders!
AURORA ALERT:Sky watchers, be alert for auroras. A coronal mass ejection (CME) hit Earth today at approximately 1400 UT, and the impact may cause strong geomagnetic storms. Stay tuned for updates.
The CME was hurled toward Earth on Dec. 13th by an X3-class explosion from sunspot 930:
An X3-flare on Dec. 13th. Image credit: SOHO
NOAA forecasters estimate a 35% chance of more X-flares today. Sunspot 930 has an unstable "delta-class" magnetic field that could erupt at any moment.