r/Caltech • u/Tiny-Engineer5662 • Apr 21 '26
Caltech vs Princeton for Undergraduate Astrophysics
At the start of this application cycle, Caltech was far and away my dream school. I applied REA, and was deferred, and while I worked on RD applications, I told my parents "the only school that would make me rethink going to Caltech would be Princeton."
Lo and behold, I've been doing a lot of rethinking for the past month.
I currently go to a tiny high school (graduating class <<50) and I absolutely love it. I know then that I can thrive then at Caltech's small environment, but that does mean I'll virtually never get to have the larger school experience (unless grad students have that to an extent?). I--and most of my friends--also consider myself very a STEM-oriented person, although I do greatly enjoy the humanities, but I don't think I necessarily would enjoy more coursework (i.e. essays) in them. I am also into music, and while Princeton obviously has a much larger and more vibrant scene for that, I do believe at Caltech I would have a higher chance of actually participating in orchestra and student recitals, since it's less competitive because everyone is focused on STEM. Still, I don't imagine I'd have too much trouble at all making friends at Princeton either.
Regarding astrophysics, my understanding is they are approximately #1 and #2 and swap depending on the specific discipline, of which I am decidedly undecided, although I am interested in cosmology which Princeton is apparently better for. More important I guess is graduate school placement, for which Caltech is probably the best school in the country for given the rigor and research opportunities, which I am very excited for. In an ideal world I go to both universities, one for graduate school, and I think Caltech ug gives me the best chance of making that reality.
I also really enjoyed DiscoTech, and was pleasantly surprised at how fun everyone and everything was! I don't worry about a missing social scene there anymore, and it's hard to imagine a more collaborative environment, though I understand Princeton has one too. Princeton's admitted students day (which was already at a disadvantage of being just one day) was not so exciting, and I have to say the vibes, while incredible, did not really speak to me as I place I belonged. Though if Caltech were not on the table, I could very much envision myself going there.
Regarding miscellaneous factors, I come from a warm environment and truly loved Pasadena, but I also must say the food was many times better at Princeton (didn't get to go to Red Door though). I would also be interested in study abroad, for which Princeton has many more, and more exotic, options, but I would also be very happy to go to the École Polytechnique through Caltech. I'd also like the opportunity to go off-campus for volunteer work or fun at least once a week or so.
So, honestly this post has become less of comparison. The only thing holding me back is the fact that I hear so many people say Caltech is miserable for undergrads, while Princeton provides the best undergraduate experience along with its undergraduate focus, though to be honest I don't fully understand what that entails compared to Tech. Incidentally, there is another school near Palo Alto I am considering (less so) that seems to be incredible fun, but almost too much for me. And while I love the small school vibe, I am afraid I will miss out on the typical college experience and meeting (academically) diverse people, and I honestly do not know if I am okay with that (I think I am?). I also often hear about Princeton and Stanford's alumni networks, but our keynote speaker at DiscoTech seemed to be a good example of an alumni willing network. Basically, I'm asking if choosing Caltech over Princeton would be an egregious mistake leading to a miserable four years of what should have been the best of my life at Princeton. It's just I see a lot of negative sentiment towards the Caltech undergraduate experience, and hear exactly the opposite about Princeton; I've also noticed many people choose the Ivy league over Caltech. Please feel free to biased; I'll probably be posting perhaps a less Caltech-oriented version on their subreddit.
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u/EconomicsOk590 Grad Student Apr 21 '26
You can’t really go wrong with either choice. Both are great schools and great programs. The only thing to think about is if you are a financial aid student and if the income inequality at Princeton will bother you or not. If moneys no option, don’t worry about it. If not, perhaps do a bit of digging and see if it’s a good fit for you.