Abstract :
IT CAN HAPPEN: Every so often the sun emits an explosive burst of charged particles that makes its way to Earth and, under just the right conditions, wreaks havoc on power grids. A powerful geomagnetic storm in March 1989 blacked out the entire province of Quebec, leaving millions of customers in the dark and damaging transformers as far south as New Jersey. Lately the question being debated in space weather circles is: Are we prepared for a repeat, or a storm 10 times worse—like the 1859 solar superstorm?
