In this photo made available by U.S. astronaut Christina Koch via Twitter on Dec. 26, 2019, she and Italian astronaut Luca Parmitano pose for a photo with a cookie baked on the International Space Station. The results are finally in for the first chocolate chip cookie bake-off in space. While looking more or less normal, the best cookies required two hours of baking time last month up at the International Space Station. It takes far less time on Earth, under 20 minutes. And how do they taste? No one knows. (NASA via AP, File)