Sandwiches are objectively the single greatest culinary invention—ever. But how are you supposed to consume this marvel of man in the zero-gravity environment that is outer space? Fortunately, everyone's favorite Canadian astronaut, Chris Hadfield, seems to have solved the problem.
Of course, sandwich purists may not be entirely satisifed with the results—tortillas in place of bread, some may say, do not a sandwich make. But this is outer space, you culinary fascists, and exceptions need to be made. If this sparked your interest, you can learn even more about how Canadians (and other people, probably) eat in space over here. [Canadian Space Agency]