Today is the anniversary of an historic solar storm, the Carrington
Event. On Sept. 2, 1859, a CME struck Earth's magnetic field with such
power that telegraph stations caught fire and people in Cuba read their
morning newspapers by the red light of the aurora borealis. If a similar
storm struck our planet today, it might cause trillions of dollars of
damage to society's high-tech infrastructure. Could the Carrington Event
happen again? It almost did just a few years ago.