It does not take a genius to realize that astronauts do not exactly carry regular foods with them to space. Space travelers rely on freeze-dried foods for their meals. This Astronaut Ice Cream Sandwich is dehydrated and would work just fine if you happen to become an astronaut some day. Astronaut Ice Cream Sandwiches are designed to be stored at room temperature without melting. They are great for the office or when you are in a space station. These do last for three years or so.