Astronauts on the International Space Station have baked the first cookies in space, but they took far longer than on Earth. The space station’s Italian commander Luca Parmitano acted as baker aided by Nasa astronaut Christina Koch for the chocolate-chip cookie experiment. Cookies take around 15-20 minutes to bake on Earth but the astronauts discovered that their most successful efforts required at least two hours in the oven in space. The prototype oven which can be used in microgravity was designed and built by Nanoracks and Zero G Kitchen while the Double Tree by Hilton hotel chain supplied the raw cookie dough. While the astronauts said they looked and smelled like cookies, no one has tasted them. Three of the cookies returned to Earth on the SpaceX Dragon spacecraft on January 7 and will undergo testing by food scientists to determine if they are edible.