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 rocket-fuelled exploration of the Universe and all its wonders, filled with incredible discoveries, intriguing theories and a lot of questions still to answer.