Pulsars are in an ideal part of the universe to test Einstein's theory of relativity - so far, it's holding up well. They may even one day act as navigational beacons for spacecraft. I'll never tire of them; they really are the most extraordinary objects.

Solar storms cause power outages. They pose a hazard to satellites. They might interfere with your GPS or send your compass a couple of degrees off course. But I don't think solar storms are a life-threatening event.

The Sun's magnetic field reverses every 11 years. There have been a quarter of a million reversals since our predecessor, Homo Habilis, emerged, and they haven't killed us yet.

Jocelyn Bell Burnell Quotes