Working through Alastair Reynold's latest book, 'Poseidon's Wake' at the moment. It's a follow up in his 'Blue Remembered Earth' series. In theory it's a stand-alone, but I'm not sure it can really be read well as one. More on that soon.
On the other hand, it carries Reynold's usual mix of really, really big ideas (in both the conceptual and macro-sized senses!), and manages to give us a set of thoroughly human, relatable characters. It's certainly worth reading if you're into the series.
More detail (hopefully) tomorrow - it's a bit of a beast of a book, so I'm hoping I'll be done by then!