A student was left shocked when she checked her tourist snaps of the London skyline - and spotted what looks like a flying saucer. University Of Exeter academic Karolina-Slavka Mueller was in London for the weekend, when she took some shots with her camera phone of the sights. But when she looked back at the January 19 night time pictures of Tower Bridge and the London Eye, she was shocked to see an apparent UFO. And experts claim it is the real thing. Karolina said in an email: "What's very strange about this is the fact that we didn't actually...