So I've well into my first year at university, but I have been having doubts about my degree already.. It seems like I never thought about what I REALLY wanted to do during high school. So due to me enjoying a mix of physics, chemistry and math, I chose ChemE.. However, I've always been fascinated with space exploration, astronomy, rocketry etc. It's been like this since I was a kid (not unusual?), but I didn't choose aerospace engineering because they don't offer it in my country. So would it be possible for me to work for agencies like ESA etc. and contribute to space exploration, while having a degree in chemical engineering? I was thinking having a chemE around when you design rocket engines and life support systems could be handy.. But may I be wrong, and thus should switch my degree to engineering physics or mechanical engineering or something next year? Edit: It is possible for me to pick optional classes during my third, fourth and fifth year (my degree is a 5-year MSc), and even travel abroad to study in my fourth or final year. This could make my chemE degree more aeorspace oriented, no?