Lunch: Chowder, cheese, chocolate and cocoa juice. Dinner: tuna salad, bean juice broth, chocolate snacks, pretzels, pineapple and grape juice. This is a recipe for astronauts on the Apollo moon landing spacecraft in the United States one day. It provides a more detailed recipe composition for astronauts in the former Soviet Union's Salute Space Station. These are all conventional space diets, that is, astronauts' "regular meals" under normal flight conditions. In addition, there is a special emergency diet, which can be eaten through the helmet feeding hole when wearing a pressurized spacesuit, and a spare life-saving diet, which can return to the ground without rescue.