MONSTER TORNADO ON THE SUN: On Earth, the most dangerous tornadoes are rated F5. On the sun, they can be hundreds of times worse. David Wilson photographed this twister, big enough to swallow our entire planet, from his backyard observatory in Inverness, Scotland.I was recording this monster all day on April 24th when I noticed the central stem grow brighter until it let go at about 1300UT," says Wilson. "It looked like a huge swirl of plasma went round the stem and flew into space."Wind speeds