I'll make this rather short- I'm looking for Sci-Fi books. Preferably, I'd like them to be closer to hard-sci-fi (going for a more realistic feel, of things that might actually happen, rather then crazy space epics of alien races) and also with a rather serious tone and atmosphere. Also, I'm really into space and all that jazz, so the more black holes and wormholes the merrier. Think 2001: SO, Interstellar (minus the love parts haha) and the such. I'm going on a book-shopping spree tomorrow, so recommend away!