While you were sleeping

'On Monday, at around 2 p.m. ET, a coronal mass ejection (CME) slammed into the Earth's magnetosphere. According to NASA's Space Weather Laboratory, the conditions were just right for the CME's magnetic field to compress the Earth's magnetosphere so much that, for a short time (between 3:06 p.m and 3:11 p.m. ET), energetic solar wind particles penetrated as deep as geosynchronous orbit -- home to hundreds of communication satellites'.
From : http://news.discovery.com/space/epic-geomagnetic-storm-erupts-111025.html

This is so cool!