Solar activity may blot out London Olympics

Solar activity and magnetic storms could cause havoc with communication systems just around the time of the London Olympics in 2012, stargazers warn. The sun's been a bit qiet lately, by all accounts, but it's gearing up for a massive surge in activity at around the same time as the London Olympics. Scientists say the sun will reach a peak in its 11-year cycle just about the time that the Olympic flame lights up Stratford in East London. Solar flares erupting from the...