If you think you know everything there is to know about summer, you will be pleasantly surprised with the current issue of BBC Focus Magazine. Look at the season with new eyes as you learn fascinating facts such as the health merits of sunshine and barbecue food, why freshly cut grass has such a pleasant smell, and what summer is like on Mars. This issue also has a special Q & E feature in which BBC Focus experts answer summer-related questions from the readers. Other hot topics include a geneticist’s view of the Bible, the decoding of hieroglyphs, and British astronaut Tim Peake’s first voyage into space in 2015. Become an active observer of the world around you with the Summer 2013 issue of BBC Focus magazine, available now.