text: after swallowing, are there muscles that move the food to the stomach so one can eat as usual in space?   sort of. the esophagus is capable of something called peristalsis which is a constricting/dilating action that moves a bolus of food from the mouth to the stomach. so when you are in space, eat up! now there is no guarantee that your stomach will tolerate the food once it gets there!!!! i hear 0 gee can be a tricky thing!