A standard mission to the International Space Station is six months long. About nine months before launch, each astronaut tastes the 200 or so items on NASA’s space menu and chooses what they want to be sent into space for them. Nutritionists weigh in to make sure they get the nutrients they need, and astronauts can take some ‘bonus’ treats with them. These can be off-the-shelf foods, and astronauts from different nationalities often have special space meals prepared for them. (Tim Peake got a bacon sandwich, beef stew with truffles and sausages and mash, courtesy of Heston Blumenthal.)