Since there aren't any grocery stores in outer space, astronauts have to bring shelf-stable and nutritious food with them. In #BehindtheScience, Jen visits UMass Food Science to meet Ph.D. students Tim Goulette and William Dixon. They're researching the degradation of vitamins B and C in astronaut's food during long-term storage, so agencies can make informed decisions about when to resupply food and when to recommend vitamin supplements. More info on vitamin analysis at Waters: http://bit.ly/2M