On this day in history, August 28, 1859... Unprecedented solar activity was observed by English amateur astronomer Richard Carrington. A few days later, in the midst of the strongest geomagnetic storm on record, a major coronal mass ejection (CME) hit the Earth, known as the Carrington Event. The solar storm widely disrupted telegraph service. Today, CMEs can disrupt radio transmissions and cause damage to satellites and electrical transmission line facilities, resulting in massive and long-lasting power outages. Some believe that if the Carrington Event were to happen today, it would completely destroy our modern digital world.