- Astrophysicists are scratching their heads about what's happening on the sun and in our solar system. Why has this so-called "Solar Minimum" been so active? It should be quiet now with very few sunspots because this is supposed to be the low point of the Sun's 11-year-sunspot cycle. But this week, there was a sunspot called 822 that's 87,000 miles across - the size of the planet Jupiter! Could it erupt with more powerful X-flares as has happened the past few months. Big flares threaten all the broadcast, global positioning and military satellites that now orbit our planet. As...