The Sun's polarity is about to flip (and here's what that means)

The Sun's magnetic field is poised to reverse its polarity in the coming months. NASA's not sure exactly when – something in the next few months or so – but when it does, it'll mark the midpoint (aka "solar max") of this, the 24th Solar Cycle. » 8/08/13 2:20pm 8/08/13 2:20pm