All the best planning in the world can be scuppered, of course, by weather, however, as anyone who remembers the August 1999 eclipse in the United Kingdom will tell you, when clouds blotted out that show. So if you want to make sure you see a total solar eclipse, which only falls over a given location once every 375 years on average, what's the best way to do it? Well, take to the skies and fly above the clouds