From Princeton, I took the train to NY Penn Station where I caught a train to Boston (I'm rather proud to state that I spent all of 15 minutes above ground in NYC, to buy a mobile phone charger). The train journey was very nice because we were travelling through the New England countryside around sunset, and the scenery was like something out of a landscape painting.

By the time I got to Boston it was in the night, so I didn't go over to the Center for Astrophysics (CfA) at Harvard until the next morning. Whereas the astrophysics department in Princeton was enclosed in a fairly small building, the CfA in Harvard is huge. It's a 4-storey building holding over 300 PhD researchers (apparently the largest concentration of PhDs in the world!), although a lot of them work for the Smithsonian Observatory which isn't officially part of Harvard.

Just like at Princeton, it was arranged for me to meet up with some of the professors. There were not that many professors at Harvard who were doing cosmology, and I got to talk to 4 of them. The rest of the professors I talked to were in X-ray astrophysics, which I considered rather strange since I specifically stated in my application that I was interested in cosmology for my PhD even though the bulk of my prior research was in X-ray work.

The cosmology profs at Harvard were doing some interesting work, but I felt that they were less enthusiastic about me than Princeton, and some of the current grad students there told me that some of them were difficult to work with. Speaking of the grad students, I managed to speak to quite a few of them, and they were asked to bring me out for lunch and dinner, and to show me around town. They bought me my meals, which the department would later reimburse them for (in fact the department would pay for the students as well, which made them quite happy to come).

Boston is very close to Harvard, less than 10 minutes away by subway. It is a pretty nice and pleasant city, not too big, and I was fortunate enough to come just at the beginning of spring where the weather was nice and sunny. Most of the tourist attractions seem to stem for the historical significance of the city during the Revolutionary Wars, which wasn't as interesting for me as it would be for American visitors, but I did enjoy having decent seafood for my meals.

In the end, however, I decided to choose Princeton. In pure academic reputation, both Harvard and Princeton were probably just about equal, but I preferred the small size of the Princeton department which meant I would be able to know everyone there, whereas I would just get lost in Harvard CfA. Also, in Princeton I would be close to their world-class physics department as well as the Institute of Advanced Studies, Einstein's old stomping ground, which would enrich my education.

Apparently there were 5 students this year who were admission into both Princeton and Harvard, and 4 of them have decided to go to Harvard. I must be say that I found my trip to Harvard/Boston particularly enjoyable, and I enjoyed the company of their students. The Princeton students were nice as well, but I didn't get to hang out with them much apart from one dinner. Indeed, if I was looking for a place where I would have fun and enjoy life, I would probably have chosen Harvard assuming they're equal in academic factors.

A ridiculously important decision in my life, but at least I got to take a look personally before I made my choice. Check back in a few days to see the pics from my trip.