Astronauts baked the Chocolate chip cookies in a special zerogravity oven at the International Space Station (ISS) last month. On Earth, it takes about 20 minutes to bake cookies at a temperature of around 150C (300F). The astronauts found that, in space, it takes far longer. For the experiment, five cookies were baked over several days to determine the ideal cooking temperature and time. Tests are being carried out to determine whether the cookies are safe to eat. The aim of the experiment was to study cooking options for long-haul trips.