I'm going to be in chemical engineering and am debating between the two. I want to go to grad school (probably just Master's). If I did Co-op, I'd likely take 5 years to graduate, where as if I did summer internships I would take 4. (I'm an entering freshman). I REALLY want to get a co-op or internship at NASA or another space program, but I don't know how feasible that is being a chemE major. How hard would it be to gain a spot in one of these programs? Ideally Goddard MD as I have housing arrangements easily set up there. My school has a strong program, but we're not affiliated with many companies outside of our region (which happens to not have much space industry). How do grad schools look at co-ops vs. internships? I got the impression that co-ops are mainly for those not pursuing further education, but then I'm still in the beginning stages of research.