Student at university looking for advice

Hi all, I'm currently heading into my second year at university in the UK. I'm studying physics with astrophysics however, as time goes on I'm becoming more and more interested in a career in finance but don't know where to begin. Is it possible to move into finance with this degree? Is there anything I can do to improve my very little knowledge, such as books to read or courses to go on? any advice at all will be very much appreciated.

Many thanks
Stephen