Picture it: You’ve traveled three days — nearly 250,000 miles. You step off the space shuttle onto the powdery surface of the moon. You think to yourself, “Man, fries would hit hard right about now.” Well, you could be in luck. Researchers at Oregon State University have shown that potatoes can be grown in moon dirt, a substrate called “lunar regolith.” But you have to add a little compost to get a decent harvest.