The competition blasts off this week as an astronaut orbiting Earth blinks onto a large screen, instructing the chefs on this week's Elimination Challenge -- to come up with space food creations that do not taste like moon rocks. The winner will have their dish served in space! Dana Cowin, editor-and-chief of Food & Wine magazine, and the well-traveled Anthony Bourdain serve as guest judges, with Apollo Astronaut Buzz Aldrin making a very special guest appearance.