Blindsight
Peter Watts

In 2082, sixty-five thousand probes burn up in the atmosphere all at once – something has photographed the Earth. The trail leads to a comet far out past the Kuiper belt, and the ship Theseus is sent to answer it. Her crew is a deliberately inhuman one: a linguist running four personalities in one skull, a biologist wired more to his instruments than his own senses, a soldier, an observer who long ago stopped being able to feel anything he watches – and a resurrected vampire in command.
Review
I’m not going to lie, that vampire thing really threw me off the first half of the book. It felt like the true alien in this arche-typical humanity meets aliens story, but towards the second half I understood why it was essential for the plot twist. If you enjoy a well-written sci-fi story about the decoupling of intelligence and consciousness, this book might be just the thing for you.
