Space Oddities

How far is a light year? Why isn't Pluto a planet anymore? Will the Universe end? What exactly is dark energy? How much does it cost to deliver a pizza to space? Uncover the answers to some of the most puzzling questions about space in this entertaining and informative miscellany from the expert astronomers at Royal Observatory Greenwich. This pocket-sized book is packed with hundreds of amazing facts, on subjects as varied as the mysteries of dark energy and antimatter to a rock on Mars called Humphrey, and everything in between. Space Oddities: An Astronomy Miscellany is a rocketfuelled exploration of the Universe, filled with incredible discoveries, intriguing theories and a lot of questions still to answer.