Astronomy is amazing. Over the past few hundred years we've found out that our planet is one of a host of objects orbiting the Sun, which itself is one of around 100 billion stars in our galaxy which is, in turn, one of hundreds of billions of galaxies in the universe. We've managed to look backwards through 13.7 billion years of cosmic history to just 300,000 years after the big bang. We've tested the fundamental laws of physics in some of the most extreme environments that exist. For some...