Alert! Alert! Space fire approaching the planet or so sayeth spaceweather.com:

A coronal mass ejection (CME) is racing toward Earth and it could spark a severe geomagnetic storm when it arrives--perhaps tonight (Sept. 14th and 15th). People everywhere should be alert for auroras.

The CME, pictured above, was hurled into space on Sept. 13th by an X1-class explosion at sunspot 798. This remarkable 'spot has produced nine X-flares since Sept. 7th including a record-setting X17-monster. All by itself, sunspot 798 has made Sept. 2005 the most active month on the sun since March 1991.