NASA is developing a high-calorie food bar for deep space missions that astronauts can take on board in place of food supplements. Food choices on the Orion, NASA's spacecraft, are often limited and lack nutrition. Now, scientists have created a nutritious bar that keeps astronauts healthy and fit during their mission to space. Scientists are also trying to create various flavors in these bars to mimic different meals, such as orange cranberry or barbeque nut.